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The engine of the 2004 Mercedes-Benz E55 AMG produces 516 pound-feet of torque between 2,650 and 4,500 rpm. For a lot of people, this sentence means nothing. What, after all, is torque? What is a pound-foot, and is 516 of them a good thing or bad ...

E55 AMG: Twist and shout - Vancouver Business Journal

Voting Question: What are all the different Motor liters for example 5.0 liters equals 305 or 307 for chevy and oldsmobile?

Resolved Question: exact questions on my homework:?

This is math: 1.) 12 cups of soda is about _____ liters 2.) 448 grams of chocolate is about ________ ounces ________pounds 3.)15 kilogram bag of dog food is about _______ pounds _____ ounces 4.) Four cases of soda weigh about 72 pounds. That equals about ____ kilograms 5.) 12 cups of milk is about ______ liters 6.) 84 liters of gasoline is about _______ gallons 7.) 62 inches in height is about _____ centimeters ______ meters 8.) A 40 yard pass is about _______ meters _______centimeters 9.) 104 kilometers per hour is about ______ miles per hour 10.) A 5 mile hike is about ______ kilometers _____meters _______yards 11.) A 8.5 pound baby weighs about _____grams ______kilograms 12.) A 30 foot fence is about ______meters If you can answer these that would be awesome thxx!:) more

Resolved Question: calculus rate of change problem pls help?

A rectangle is being filled at the constant rate of 20 Liters per sec. The base of the tank has dimensions width=1m and length=2m. What is the rate of change of the height of the tank at the instant when height=5 and the height equals twice the length? more

Resolved Question: please help me in my homework..!?

This is a bring home quiz by our chemistry teacher.. and it's very hard to answer because she hasn't taught it yet and it so hard to find in our textbook..please help!!..thanks!..it's fine if you can't answer it all..:D 1. it refers to a chemical system under study where the amount of matter whether reactant or product. 2. it is the ratio of the rate of product formation to that of the rate of the reverse reaction at equilibrium. 3. it is a condition in the chemical system when the rate of the product formation is equal to the rate at which the products react to form the reactants. 4. it is the measure of the amount of internal energy content of a material. 5.it is the measure of the degree of disorderliness in a system 6. it refers to a chemical reaction where only the ionic reactants and products are taken into consideration. 7. it refers to the point of equilibrium how far a reaction goes where there seems to be no observable changes in the system. 8. it is the condition that is observed in a chemical reaction that cannot start by itself without the application of an outside energy source. 9. it refers to the series of steps that takes place to complete a chemical change. 10.it is a chemical system where a change in the concentration of the reactant/s or product/s alters the direction of the reaction. 11. it is the condition that is observed in a chemical reaction that is capable of continuing its occurrence once it has started. 12. what property of gas molecules will increase or decrease due to temperature change? 13. it is the property of gas molecules that enable gases to spread through out all the space available to it. 14. how many moles are there in 150 grams of water? 15. how many atoms are there in 0.75 mole of magnesium? 16. how many moles are there in 20 liters of an unknown substance at STP?? 17. what is the volume of 40 g of O2 gas at STP?? more

Voting Question: The OH- concentration in a 7.5x10-3M Ca(OH)2 solution is (a)7.5x10-3M(b)1.5x10-2M(c)1.3x1010-12(d)1.0x10-7M(e)?

1.0x10-14M 38)The molar solubility of lead(II) iodate in water is 4.0x10-5 mol/L. Calculate Ksp for lead(II) iodate.(a)1.6x10-9(b)6.4x10-14(c)2.6x10-13(d)4.0x10-5(e)4.0x10-5 39)Calculate the pH of a buffer solution prepared by dissolving 0.20 mole of sodium cyanate (NaCNO) and 1.0 mole of cyanic acid (HCNO) in enough water to make 1.0 liter of solution. [ka(HCNO)=2.0x10-4](a)0(b)3.0(c)3.7(d)4.4(e)5.0 40)Calculate the pH of a buffer solution that contains 0.25M benzoic acid (C6H5CO2H) and 0.15M sodium benzote (C6H5COONa).[Ka=6.5x10^ -5for benzoic acid ](a)3.97(b)4.83(c)3.40(d)4.41 41)Calculate the concentration of chloride ions in a saturated lead (II) chloride (ksp=2.4x10-4) solution.(a)2.4x10-4M(b)4.8x10-4M(c)3.9x10-2M(d)1.2x10-1M(e)7.8x10-2M 42)What mas of ammonium nitrate must be add to 350.mL of a 0.150 M solution of ammonia to give buffer having a pH of 9.00?(Kb(NH3)=1.8x10-5)(a)7.6g(b)2.4g (c)5.4g (d)11g (e)3.3g 43)What is the pH at the equivalence point in the titration of 100mL of 0.10 M HCN (Ka=4.9x10-10) with 0.10 M NaOH? (a)3.0 (b)6.0 (c)7.0 (d)11.0 (e)12.0 44)Will a precipitate (ppt) form when 300. mL of 5.0x10-5M AgNO3 are added to 200. mL of 2.5x10-7M NaBr? Answer yes or no, and identify the precipitate if there is one.(a)yes, the ppt is AgNO3(s) (b)yes, the ppt is AgBr(s) (c)Yes, the ppt is NaBr(s) (d)yes, ppt is NaNo3(s) (e)No, a precipitate will form form 45)In which one of the following solutions will acetic acid have the greatest percent ionzation? (a)0.1M CH3COOH (b)0.1M CH3COOH dissolved in 0.1 M HCl (c)0.1M CH3COOH dissolved in 0.2 M HCl(d)0.1M CH3COOH plus 0.1 M CH3COONa(e)0.1M CH3COOH plus 0.2M CH3COONa 46)What is the pH at the equivalence point in the titration of 100 mL of 0.10 M HCl with 0.10M NaOH? (a)1.0 (b)6.0 (c)7.0 (d)8.0(e)13.0 47)A titration of an acid and base to the equivalence point result in a noticeably acidic solution. It is likely this titration involves(a)a strong acid and weak base(b)a weak acid and a strong base (c)a wask acid and a weak base(where Ka equals Kb) (d)a strong acid and a strong base 48)Assuming equal concentration of conjugate base and acid, Which one of the following mixtures is suitable for making a buffer solution with an optimum pH of 4.6-4.8? (a)CH3COO2Na/CH3COOH (Ka=1.8x10-5)(b)NH3?NH4Cl(Ka=5.6x10-10)(C)NaNO2/HNO2(ka=4.5x10-4)(d)NaCl/HCl 49)will a precipitate (ppt) form when 20.0 mL of 1.1 x10-3M Ba(NO3)2 are added to 80.0 mL of 8.4x10-4M Na2CO3?(a)Yes, the ppt is Ba(NO3)2 (b)yes, the ppt is NaNO3 (c)yes, the ppt is BaCO3(d)yes, the ppt is Na2CO3(e)No, a precipitate will not form 50)The solubility product for calcium phosphate is ksp=1.3x10-26. What is the molar solubilty of calcium phosphate?(a)1.3x10-26M(b)1.5x10-7M(c)2.6x10-6M(e)6.6x10-6M 51)The molar solubility of manganese(II) carbonate is 4.2x10-6M. What is Ksp for this compound?(a)4.2x10-6M(b)8.4x10-6(c)3.0x10-16(d)1.8x10-11M(e)2.0x10-3M 52)Will a precipitate of magnesium fluoride form when 300. mL of 1.1x10-3M MgCl2 are added to 500. mL of 1.2x10-3M NaF?(Ksp(MgF2)=6.9x10-9) (a)yes, Q>Ksp(b)NO, Q<Ksp(c)No, Q=Ksp(d)Yes, Q<ksp 53)Will a prcipitate is PbS (b)yes, the precipitate is NaNO3 (c)yes, the precipitate is Na2S (d)yes, the precipitate is Pb(NO3)2 (e) No, a precipitate will not form. 54)Will a precipitate of magnesium fluoride form when 200.mL of 1.9x10-3M MgCl2 are added to 300. mL of 1.4x10-2M NaF?(Ksp(MgF2)=6.9x10-9) (a)yes, Q>Ksp (b)No, Q<Ksp (c)No, Q=Ksp (d) yes, Q<Ksp 55)The molar solubility of magnesium carbonate is 1.8x10-4 mol/L. What is Ksp for this compound?(a)1.8x10-4(b)3.6x10-4(c)3.2x10-8(d)2.8x10-14 56)Calculate the concentration of fluoride ions in a saturated barium fluoride (ksp=1.7x10-6) solution. (a)7.6x10-3(b)1.5x10-2(c)3.4x10-5(d)1.7x10-6 57)Which of the following is the most acidic solution? (a)0.10M CH3COOH and 0.10M CH3COOna (b)0.10M CH3COOH (c)0.10M HNO2 (d)0.10M HNO2 and 0.10M NaNO2 (e)0.10M CH3COONa 58)Calculate the silver ion concentration in a saturated solution of silver(I) carbonate (Ksp=8.1x10-12). (a)5.0x10-5 (b)2.5x10-4(c)1.3x10-4(d)2.0x10-4(e)8.1x10-4 59)Calculate the pH of a buffer solution prepared by dissolving 0.20 mole of cyanic acid (HCNO) and 0.80 mole of sodium cyanate (NaCNO) in enough water to make 1.0 liter of solution. [Ka(HCNO)=2.0x10-4] (a)0.97(b)3.10(c)4.40(d)3.70(e)4.30 60)Methyl red is a common acid-base indicctor. It has a Ka equal to 6.3x10-6. Its un-ionized form is red and its anionic form is yellow. What color would a methyl red solution have at pH=7.8?(a)green (b)red (c)blue(d)yellow(e)violet more

Resolved Question: I need help making sentences for these couple of words! thank you!?

so i have this packet of 'D' words that i gotta put definitions and sentences for and i finished them all, but a few of them, i don't know how to make sentences out of. the words w/ definitions provided from the dictionary are: 1) decigrams- a metric unit of mass or weight equal to one-tenth of a gram. 2) deciliter- a metric unit of volume equal to one-tenth of a liter. 3) dentate- edged with toothlike projections; toothed:dental leaves 4) denticle- a small tooth or toothlike projection. 5) dentifrice- a substance, such as a paste or powder, for cleaning the teeth. 6) dentition- the type, number, and arrangement of a set of teeth. 7) dentoid- having the form of a tooth; toothlike. 8) dolorous- marked by or exhibiting sorrow, grief, or pain. 9) dictum- a command, an order that must be obeyed. THANK YOU FOR THE ONES WHO HELP ME OUT! I NEED HELP ASAP. THANK YOU VERY MUCH! more

Resolved Question: Science Questions - FREE 10 POINTS ?

Okay. ive done 1, firsto ne to answer em all with good answers get 10 points 2 - decompisition and combustion Write how the meanings of these terms differ 3 - Nitrogen Fixation a. Is done only by plants b. is done mostly by bacteria c. is how animals make proteins d.is a form of decompisition 4 - Describe the Water Cycle 5 - Decsribe the carbon cycle 6 - The average person in the US. uses about 78 gal of water each day. How many liters does that equal?How many liters will this average person drink in 1 year?? 7 - Give me a picture of water cycle and Carbon cycle 8- Give an example of how the calcium in an animals bone might be cycled back into the enviroment FREE TEN POINTS IF GOOD ANSWERS MUST ANSWER ALL more

Voting Question: Could someone check my answers?

1. A volume of 3.79 liters is about equal to how many quarts? a. 0.5 quarts b. 4 quarts c. 2 quarts d. 2 cups i think it c or b not sure 2 A person who is .75 m tall is most likely… a. an embryo (5 inches long) b. a toddler (3 feet tall) c. a seventh-grader (5 feet tall) d. a fabulous basketball player (6 feet 8 inches tall) B 3. A wealthy benefactor of the Amazon Preservation Guild is building an endangered bird sanctuary. It is four miles long and two miles wide. How much fencing will be needed to enclose the sanctuary? a. 8 mi. b. 4.5 mi. c. 12 mi. d. 16 mi. c 4.A box is 5 inches wide, 3 inches deep, and 10 inches high. What is its volume? a. 300 sq. in. b. 50 sq. in. c. 150 sq. in. d. 30 sq. in. c 5Find the perimeter of a figure whose sides measure 8 cm, 9 cm, 8 cm, and 3 cm. a. 28 cm b. 48 cm c. 34 cm d. 1 dm a 6 A deciliter is what multiple of a liter? a. 1/10 b. 10 c. 1/100 d. 20 a 7 How many millimeters are in a dekameter? a. 100 b. 10,000 c. 1,000,000 d. 10,000,000 b 8 Which is larger: a square 5 feet tall or a circle 5 feet tall? a. They have the same area b. it depends on the other dimension of the square c. the square d. the circle d or c 9 Francis’ locker is 18 inches wide, 18 inches deep, and 3 feet tall. What’s the volume of his locker? a. 6.75 b. 4.5 c. 4 d. 3.75 a 10 A cylindrical oatmeal container is 10 inches high, and the diameter of its base is 5 inches. What’s the approximate volume of the container? a. 250 cubic inches b. 785 cubic inches c. 500 cubic inches d. 196 cubic inches a or b 11 How many times greater is a hectogram than a centigram? a. 10,000 times greater b. 5,000 times greater c. 8,000 times greater d. 3,000 times greater b or d 12 The temperature on a cold snowy day is about: a. -30 degrees Celsius b. -3 degrees Celsius c. 30 degrees Celsius d. -33 degrees Celsius I think it's c or d 13 The length of an average fork is about: a. 20 mm b. 2 dm c. 20 cm d. 12 cm d 14 The mass of a laptop computer is about: a. 4 kg b. 40 kg c. 400 g d. 14 g a 15 How many times greater is a square decameter than a square centimeter? a. 1,000,000 times greater b. 10,000 times greater c. 1,000 times greater d. 100,000 times greater a or b 16 Convert 10 oz to grams. a. 15 g b. 20 g c. 28 g d. 280 g c or d more

Resolved Question: I need your help please!?

A volume of 3.79 liters is about equal to how many quarts? a 0.5 quarts b 4 quarts c 2 quarts d 2 cups a box is 5 inches wide, 3 inches deep, and 10 inches high. what is its volume? a 300 sq in b 50 sq in c 150 sq in d 30 sq in a grown woman is about how tall? a 355 b 160mm c 160 dm soda in a can of soda a 355 l b 355 ml c 355 m^3 more

Voting Question: Physics project were u drop a egg and not have it break?

I have to create and a cask designed to contain an egg for my physics class and withstand accidents. The outer layer of the cask will be made from 2-liter soda bottles, and the interior packaging car be made from your choice of materials and design. The rules are: 1. All of your packing and materials must fit in no more than two 2-liter plastic soda bottles that have a combined length of 75 cm or less. 2. The maximum allowable weight of the entire cask with egg must be equal to or less than 454 grams (1 pound). (You supply a raw egg) 3. The cask must withstand a drop of 7 to 10 meters without the egg breaking. 4. The cask must withstand the force of a swinging bowling ball striking the side of the cask without the egg breaking. 5. The cask must withstand being slammed down onto a post without the egg breaking. 6. No packaging material may be used. No Styrofoam. No foam insulation. ANY IDEAS? HELP ME PLEASE? IF IT DOESNT LAST THROUGH ALL THE ACCIDENTS ITS OK . BUT I GOT EXTRA CREDIT IF IT DO :) more

Voting Question: How to do a project were u drop a egg and not break it?? For physics class?

I have to create and a cask designed to contain an egg for my physics class and withstand accidents. The outer layer of the cask will be made from 2-liter soda bottles, and the interior packaging car be made from your choice of materials and design. The rules are: 1.All of your packing and materials must fit in no more than two 2-liter plastic soda bottles that have a combined length of 75 cm or less. 2.The maximum allowable weight of the entire cask with egg must be equal to or less than 454 grams (1 pound). (You supply a raw egg) 3.The cask must withstand a drop of 7 to 10 meters without the egg breaking. 4.The cask must withstand the force of a swinging bowling ball striking the side of the cask without the egg breaking. 5.The cask must withstand being slammed down onto a post without the egg breaking. 6.No packaging material may be used. No Styrofoam. No foam insulation. ANY IDEAS? HELP ME PLEASE? IF IT DOESNT LAST THROUGH ALL THE ACCIDENTS ITS OK . BUT I GOT EXTRA CREDIT IF IT DO :) more

Voting Question: Metric ConversionsHELP!?

Question 1 Which is larger? a) 1 millimeter b) 1 centimeter c) 1 kilometer d)1 decameter -------------------------------------------------------------------------------- Question 2 One centimeter is equal to a)100 meters b) 10 meters c)0.01 meter d)0.001 meter -------------------------------------------------------------------------------- Question 3 Which of the following is closest to the thickness of a dime? a) 3 kilometers b) 3 millimeters c)30 centimeters d) 30 meters -------------------------------------------------------------------------------- Question 4 The best unit for measuring the width of a textbook would be a) millimeters b) centimeters c)meters d) decameters -------------------------------------------------------------------------------- Question 5 The volume of a cup would most likely be measured in a) grams b)kilograms c) milliliters d)kiloliters -------------------------------------------------------------------------------- Question 6 Which of the following is the same as one meter? a) 0.001 kilometer b) 0.01 kilometer c) 0.1 kilometer d) 10 kilometers -------------------------------------------------------------------------------- Question 7 A recipe calls for 100 ml of water. How many liters is this? a) 0.1 b) 0.01 c) 10 d) 100 -------------------------------------------------------------------------------- Question 8 How many liters are in 100 milliliters of water? a) 0.01 b)0.1 c) 10 d) 100 more

Voting Question: need to know if my answer is correct?

which of these buffer pairs is one of the ones involved in reguating blood pH in humans? (a) HF/F- (B)HCN/CN- 9C)HNO2/NO2-(D)H2CO3/HCO3- my response D. 7)when performing acid-base titration it is necessary to know when the reaction is complete.this is identified. my response is by adding an indicator to the mixture and stop ping when it changes color. 8) a buffer solution is made by mixing equal number of moles of a weak acid and the acid conjugate base in one liter of water. Th pKa for this acid is 5.41.what is the pH of this buffer solution? a)4.41 (b)5.41(c)6.41(d)0.733(e)3.9*10^-6my response is B 9) using Henderson - Hasslebach equation, indicate on the blank space below the pH of a solution made from HCN and NaCN where the solution is 1.50 MHCN and 0.500 MNaCN. the Ka for HCN is 6.6*10^-4 my answer is 3.66 more

Resolved Question: I have a photo printer is any way to refill the ink cartridges myself to save, now they use an electronic chip?

Is this going to void my guarantee, you pay about $30.00 for 3.5 ml, this is equals to $8571.00 a liter is any regulation from authorities to let them charge you that much?......... Is this going to void my guarantee, you pay about $30.00 for 3.5 ml, this is equals to $8571.00 a liter is any regulation from authorities to let them charge you that much?.........The model is an HP Photosmart 5280 , I don't want to send it to any place, I want to do it MYSELF.....I know there are places to refill it, they are a little cheaper, but this is not my intention I want to use the refill bottles of liquid ink .....or is this impossible ? more

Resolved Question: how much does .5 liters equal to in ml....yes point 5?

Resolved Question: EASY 10 points!!!! before tomorrow. PHYSICAL SCIENCE, please help!!!!!?

hey here are some science questions that I can't figure out can I please have help need them for tomorrow BEST ANSWER gets 10 POINTS!!!!!!!! You do not need to answer all the questions if you don't know them but please try. these are PHYSICAL SCIENCE questions just so you know. okay here we go. THANKS A BUNCH! 1. Suppose you were able to count molecules in a substance. Which would have more molecules, 1 liter of liquid water or 1 liter of ice? 2.As you are outside on a cold, winter night, you begin to shiver from the cold. Your companion says that you are shivering from the heat. Is your companion correct? Why or why not?! 3. Suppose there were a layer of carbon dioxide gas in the mesosphere. What would happen to the temperature gradient in that region? 4. Why is water harder in certain regions of the world than in others? the next one is a bit harder! 5. Suppose the earth's air supply were twice as concentrated as it really is. Would atmospheric pressure be greater than, equal to, or less than it is now?sorry these answers really wern't helpful at all more

Resolved Question: Questions! 10 Points for best answer!?

Question 1. What is the last digit of the number (77)^77? Question 2.A colonel, on attempting to draw up his regiment in the form of a solid square, finds that he has 30 left over, and that he would require 25 soldiers in his regiment to increase the side of the square by one soldier. How many soldiers are in the regiment? Question 3.Find the area of an equilareral triangle in which each side has a length of 2 cm. Questions 4.Consider the squence of numbers: 5,_,_,_,_,_,_,_,7,_,_ Fill in the blanks so that the sum of any three successive numbers is 15. Question 5.Given 3 containers holding 3,7 and 10 liters respectively with the largest being full of water, determine a method of dividing the quantity of water into two equal amounts of 5 liters using the containers and no other measuring devices. Question 6.A watch gains 60 minutes a day. It is set to read the correct time at 12:00 noon. What will be the correct time next day when the watch again reads 12:00 noon. more

Resolved Question: A HARD PROGRAM...huuhuuhuu! HELP...?

hello hello dear experts in programming... i'm not a programming student but our "RARELY-SEEN" teacher instructs us to make 5 programs for turbo C doing the conversion factors! waaahhh! it's a whiplash for my brain who doesnt know how to make a program... here are problems that needs a REAL programmer's HANDS... please help me, i'm dying already because submission time's next, next DAY!!! waaaaaaahhhhhhhhh!!! HERE: 1. Write a program that inputs a distance expressed in kilometers and output the distance expressed in miles. One kilometer equals 0.62137 mile. 2. Write a program to read weight in pounds and output the weight expressed in kilograms One pound equals 0.453592 kilograms. 3. A liter is 0.264179 gallons. Write a program that will read in number of liters and then output the number in gallons. 4. A Celsius (Centigrade) temperature C can be converted to an equivalent Fahrenheit temperature F according to the following formula: F=(9/5)C + 32 . Write a program that will read in Celsius temperature as decimal number and then output the equivalent Fahrenheit temperature. 5. write a program that will input a number in inches and converts it to centimeters. PLEASE...help, help... i LISTEN WELL to my teacher during classes but he is the type where he only comes once in a blue moon and surprises us by projects that are really hard to make... i'm beginning to see my poor grades because of this...huhuhu!!! i really don't want to be held back... T_Ti already did a almost 15 programs and none even run properly... such a frustration! I'M an airline major but my teacher asked bring- home exams like this!!! wwaaahhh!!! more

Voting Question: I need some help with this.?

Dimensional Analysis Unit Use conversion factors to find each of the following: 1. distance traveled in feet after 12 seconds at 87 miles per hour 2. miles jogged in 1 hour at an average rate of 8.5 feet per second 3. There are about 400 cocoa beans in a pound. There are 2.2 pounds in a kilogram. About how many grams does a cocoa bean weigh? 4. Assume that one dollar is equal to 1.14 euros. If 500 g of an item is selling for 25 euros, what is its approximate price in dollars per kilogram? 5. Use the following data to find the world-record speed in miles per hour. World Record A: 100 m in 9.77 sec (Hint: 1 mile 1609 m.) 6. A vampire bat consumes approximately 2 tablespoons of animal blood each day. Approximately how many gallons of blood does a vampire bat consume in a year? (Hint: 1 tablespoon = 0.5 ounce) 7. A hummingbird flaps its wings 1,500 times per minute while airborne. While migrating south in the winter, how many times during a 1.5 hour flight does the hummingbird flap its wings? 8. A farmer plants seeds for a 75-acre field of yellow sweet clover. A 25-lb bag of seed costs $24. How much would it cost, in dollars, to seed the field if 12 pounds of seed were used per acre? 9. Your grocery store sells milk in 1 liter bottles as well as 1 quart cartons. The liter bottle costs $1.42 while the quart carton costs $1.29. Which is the better buy? (Hint: 1 liter 33.8 ounces) 10. The rate of one knot equals one nautical mile per hour. One nautical mile is 1852 meters. What is the speed in meters per second of a ship traveling at 20 knots (20 knots = 20 nautical miles per hour)? more

Resolved Question: Scientific Measurement the metric system?

please convert these for me.... 10 pts for best METERS 1) 1 millimeter equals ________ m 2) 1 ______ equals 0.01 m 3) 1 decimeter equals _______ m 4) 1 dekameter equals _______ m 5) 1 ______ equals 100 m 6) 1 ______ equals 100 m LITER 7) 1 ______ equals 0.001 L 8) 1 centiliter equals _______ L 9) 1 _______ eqauls 0.1 L 10) 1 _______ equals 10 L 11) 1 hectoliter equals _______ L 12) 1 kiloliter equals _______ L GRAM 13) 1 milligram equals _______ g 14) 1 _______ equals 0.01g 15) 1 decigram equals _______ g 16) 1 _______ equals 10 g 17) 1 hectogram equals _______ g 18) 1 _______ equals 1000 g more

Resolved Question: homework help please?

I have some hard homework and I need the answers. Directions:For each pair of equations, write the letter of the equation that expresses an equal value: _____1. a. 0 degrees Celcius= -273 K or b. 0 K= -273 degrees Celcius _____2. a. 1 kg=100g or b.1,000g= 1kg _____3. a. 400 cm= 4.0 m or b. 400 cm= 0.40 m _____4. a. 1 dm= 10 m or b. 1 dm =0.10 m _____5. a.100 degrees Celcius=373 K or b. 373 K=10 degrees Celcius next part: Directions: Solve each conversion problem: 1. 40 liters=______dekaliters 2. 600 miligrams=______grams 3. 5 kilometers=______hectometers 4. 70 centimeters=______ meters 5. 900 deciliters=______dekaliters Thanks!!! more

Resolved Question: How is this done exactly ?

A container holds exactly 8 liters of liquid and is filled to the top. Two empty containers are also available, one f which can hold 5 liters and other 3 liters. Without the use of any other measuring devices, the liquid can be divided into equal parts of 4 liters each simply by pouring from one container to another. How is this done ? All containers are opaque and are not graduated. more

Resolved Question: Problem Solving? and necessary solutions.. Part 2?

1. The length of a rectangle is three times the width. If the width is increased by 1 meter and the length is diminished by 2 meter, the area will be 78 sq cm. Find the dimensions of the original rectangle. 2. Ephraim is half the age of his brother. Five years ago, Ephraim was one-third the age of his brother. How old is Ephraim now? 3. How much of a 5% alcohol solution and how much of a 13% alcohol solution should be mixed to come up with 6 liters of an 8% alcohol solution? 4. The sum of the angles of any triangle is 180o. What are the three angles of a triangle if the sum of the first two angles is equal to the third angle and the difference of the first two angles is two-thirds of the third angle? 5. A purse contains $5.90 in nickels, dimes and quarters. The numbers of nickels is twice as many as the dimes, and there are two more quarters than dimes. How many coins of each type are in the purse? (Nickel = 5 cents, dime = 10 cents, quarter = 25 cents) more

Resolved Question: the solubility of N2 in blood at 37 degree and at a partial pressure of 0.8 atm is 5.6 x 10-4 mol/L?

a deep sea diver breathes compressed air with the partial pressure of N2 equal to 4 atm. Assume that the total volume of blood in the body is 5 L. Calculate the amount of N2 gas released (in liters at 37 degree and 1 atm) when the diver returns to the surface of water, where the partial pressure of N2 is 0.8 atm more

Resolved Question: hydrazoic acid, HN3, is a weak acid that has an equilibrium constant, Ka?

, equal to 2.8 x 10-5 at 25°C. At 0.300 liter sample of 0.050 molar solution is prepared. c. To 0.150 liter of this solution, 0.80 gram of sodium azide, NaN3, is added. The salt dissolves completely. Calculate the pH of the resulting solution at 25°C if the volume of the solution remains unchanged. d. To this remaining 0.150 liter of the original solution, 0.075 liter of 0.100 molar NaOH solution is added. Calculate the [OH-] for the resulting solution. more

Resolved Question: Questions on making Solutions!?

1. Two hydrogen atoms can be combined with one atom of oxygen to make water (H2O). If you had 16 grams of oxygen atoms, how many grams of hydrogen atoms would you need to react with all of the oxygen atoms? 2. A 1 molar (1 M) solution is one in which there is one mole solute in 1 liter of water. How many glucose atoms would be present in this solution? 3. If you wanted to make one liter of a one molar glucose solution (C6H12O6), how many grams of glucose would you need? What is this equal to in milligrams / Liter? In mg/ml? 4. How many grams of glucose would you need to make one liter of a 0.5 M solution? A 0.1 M solution? A 3 M solution? 5. How many grams of glucose would you need to make 500 ml (0.5 L) of a 1 M glucose solution? 100 ml?6. You have one liter of a 1 M glucose solution and divide it into four 250 ml flasks. How many atoms of glucose are there in each flask? What is the concentration of glucose (grams/liter) in each flask? more

Resolved Question: In water, hydrazoic acid, HN3, is a weak acid that has an equilibrium constant, Ka?

, equal to 2.8 x 10-5 at 25°C. At 0.300 liter sample of 0.050 molar solution is prepared. a.Write the expression for the equilibrium constant, Ka, for hydrazoic aci b.Calculate the pH of this solution at 25°C. more

Resolved Question: How do you do these questions? ?

1. The gas constant R (as in PV=nRT) 8.314m^3●Pa/mol●K. Also R= 8.314 J/mol●K. Therefore m^3●Pa equals 1 J. Using the fundamental SI units (m, kg, and s) demostrate that 1 m^3●Pa indeed equals 1 J. 2. Mercury is traded by the "flask," a unit that has a measure of 34.5 kg. What is the volume of a "flask" of mercury in liters at 25°C. more

Resolved Question: OMG please please help ME please ((multiple choice 10 pts for who does))

Help with science multiple choice questions please!! ((10pts)) 1) A dominant allele is: a trait that is hidden by another trait. a trait that prevents the showing of other traits. a trait that has been altered by a DNA mutation. a trait that will not be seen in the next generation of offspring. 2)Segments of DNA that contain information that help make up our inside and outside characteristics are called ___________________. genes traits RNA phenotypes 3)The genotype is: a trait that will not be seen in the next generation of offspring. a trait that is hidden by another trait. what your chromosomes say your features are. what the trait looks like. 4)A change in DNA is called a(n) __________. gamete meiosis recessive allele mutation 5)An area occupied by different groups of interacting organisms is called a/an ____________. ecosystem biome community habitat 6)Gel electrophoresis (used in DNA fingerprinting) separates DNA fragments by size. true or false? 7)Freckles are a dominant characteristic. The appearance of freckles is the phenotype. Which of the following represents a heterozygous genotype for freckles? FF Ff ff 8)During Interphase the cell is performing its special job. true or false? 9)During mitosis the cell is performing its special job. true or false? 10)What is a function of proteins? to dissolve other nutrients to provide energy to store energy to control chemical reactions 11)1.0 liters is equal to 100 milileters. true or false? 12) 1 centimeter is equal to 10 millimeters. true or false 13)Surtsey, a volcanic island, is a very young ecosystem. Explain how its age limits the biodiversity on the island. more

Resolved Question: help with science multiple choice questions please!! ((10pts))

1) A dominant allele is: a trait that is hidden by another trait. a trait that prevents the showing of other traits. a trait that has been altered by a DNA mutation. a trait that will not be seen in the next generation of offspring. 2)Segments of DNA that contain information that help make up our inside and outside characteristics are called ___________________. genes traits RNA phenotypes 3)The genotype is: a trait that will not be seen in the next generation of offspring. a trait that is hidden by another trait. what your chromosomes say your features are. what the trait looks like. 4)A change in DNA is called a(n) __________. gamete meiosis recessive allele mutation 5)An area occupied by different groups of interacting organisms is called a/an ____________. ecosystem biome community habitat 6)Gel electrophoresis (used in DNA fingerprinting) separates DNA fragments by size. true or false? 7)Freckles are a dominant characteristic. The appearance of freckles is the phenotype. Which of the following represents a heterozygous genotype for freckles? FF Ff ff 8)During Interphase the cell is performing its special job. true or false? 9)During mitosis the cell is performing its special job. true or false? 10)What is a function of proteins? to dissolve other nutrients to provide energy to store energy to control chemical reactions 11)1.0 liters is equal to 100 milileters. true or false? 12) 1 centimeter is equal to 10 millimeters. true or false 13)Surtsey, a volcanic island, is a very young ecosystem. Explain how its age limits the biodiversity on the island. more

Resolved Question: Chemistry multiple choice.?

What is the pH of a solution with an [H+] = 1.2 x 10^-5? A.0.8 B.1.2 C.4.9 D.5.0 What is the product of the following reaction? HNO3 + KOH --> __________ A.Salt B.Water C.Hydronium ions D.Hydroxide ions E.A and B only Which one of the following solutions would have a pH value greater than 7? A.0.0001 M HCl B.[H+] = 1.3 x 10-2 M C.[H+] = 2.4 x 10-12 M D.[H+] = 4.4 x 10-4 M Which of the following is true of a neutral aqueous solution? A.Its hydronium ion concentration is 7.0 M. B.It contains buffers that resist a change in pH. C.It contains neither hydronium ions nor hydroxide ions. D.It has an equal number of hydronium ions and hydroxide ions. HNO3 is a _____ acid because it ionizes _______ in water. A.weak, partially B.weak, completely C.strong, partially D.strong, completely If enough water is added to 5 g of HCl to make 1 liter of solution, what is the pH? 80 g of glucose (C6H12O6) is added to enough water to make 750ml of sugar solution. What is the molarity? more

Resolved Question: pre algebra?

1.How many yards is 36 feet? A. 108 yards C. 24 yards B. 64 yards D. 12 yards 2. Which of the following is equal to 500 milliliters? A. 5 deciliters C. 0.5 deciliters B. 50 deciliters D. 0.05 deciliters 3. What would the correct ratio of boys to girls be if there are 24 girls in a class of 50 students? A. 24 : 50 C. 26 : 24 B. 50 : 24 D. 24 : 26 4. A certain mixture calls for 6 mg of amoxycillin to 15 liters of water. How many liters of water would you need for 12 mg of amoxycillin? A. 30 liters C. 6 liters B. 60 liters D. 10 liters 5. One fluid ounce equals how many teaspoons? A. 2 C. 8 B. 6 D. 16 6. What is the correct value of (30) multiplied by (40)? A. 70 C. 1,020 B. 120 D. 1,200 7. A family travels for 7 hours at a rate of 55 miles per hour. How far do they travel? A. 385 miles C. 285 miles B. 380 miles D. 280 miles 8. Solve the equation 2x + 5 = 25 for x. A. x = 15 C. x = 10 B. x = 20 D. x = 25 9. One pint equals how many fluid ounces? A. 16 C. 8 B. 10 D. 2 10. A pharmacist has 2 hectograms 55 grams of pills. Each pill weighs 1 gram 2 centigrams. How many pills does the pharmacist have altogether? A. 205 C. 255 B. 250 D. 350 11. How much interest will Mary owe if she borrows $2,000 at a rate of 6% for 2 years? A. $12 C. $120 B. $24 D. $240 12. What is the solution for the equation 3x + 6 = 12? A. x = 1 C. x = 6 B. x = 2 D. x = 9 13. If you can buy 12 cans of juice for $8, how much will 18 cans cost? A. $10 C. $18 B. $12 D. $24 14. The temperature outside is 77 degrees Fahrenheit. What is the temperature on the Celsius scale? A. 25 degrees C. 60 degrees B. 40 degrees D. 75 degreesim on bed rest, i study online and im just comparing answers!!! god! more

Resolved Question: Chemistry help!!!?

Consider the reaction N2 + 3H2 <--> 2NH3. what is the effect of decreasing the volume on the contained gases? a-the reaction shifts toward the product gas b-ammonia is comsumed in the reaction c-the system reacts by increasing the number of gas milecules d-the pressure on the gases decreases momentarily what is the ewuilibrium constant for the following reaction? C + O2 <--> CO2 a- ([CO2]^2) / ([C]^2 [O2]^2) b- ([C]^2 [O2]^2) / ([CO2]^2) c- ([CO2]) / ([C] [O2]) b- ([C] [O2] / ([CO2]) The Keq of a reaction is 4 x 10^-7. At equilibrium, the _____. a- rate of the forward reaction is much greater then the rate of the reverse reaction. b- reactants ans products are present in equal amounts c- reactants are favored d- products are favored the solubility of magnesium hydroxide, Mg(OH)2 is the 6.53 x 10^-3 grams per liter at 25 degrees C. What is the Ksp at the temp? (molar mass Mg(OH)2 = 58.32g) a-5.62 x 10^12M b-6.53 x 10^-3M c-1.40 x 10^-12 d-1.12 x 10^-4Mi need these answers within 15 minutes. sorry for the rush. thankyou! more

Resolved Question: Moles produced with a certain equation?

I need these questions answered and explained please How many moles of HNO3 will be produced when 0.62 mol of N2O5 reacts according to: N2O5+ H2O --> 2 HNO3? How many moles of PBr3 will be produced when 0.78 mol Br2 reacts according to the following equation: 2 P + 3 Br2 --> 2 PBr3? Carbon will react with zinc oxide to produce zinc and carbon dioxide. How many moles of carbon dioxide will be produced if 0.38 mol of ZnO is completely reacted? How many moles of hydrogen will be produced if 0.44 mol of CaH2 reacts according to the following equation: CaH2 + 2 H2O --> Ca(OH)2 + 2 H2? How many moles of oxygen will be needed to react with 0.38 mol of C3H8 according to the following equation: C3H8 + 5 O2 --> 3 CO2+ 4 H2O? How many grams of iodine are produced when 0.72 mol of fluorine reacts with potassium iodide (KI): 2 KI + F2 --> 2 KF + I2 How many liters of HCl are produced by the reaction of 5.7 L of hydrogen with an equal amount of chlorine: H2 g + Cl2 g --> 2 HC more

Resolved Question: Question about...... WATER!!!!!!!!!?

My water bottle says .5 liters is how much it holds. How many ounces is that? Is it 16? If so, does it equal 2 glasses of the 6-8 that is recommended daily. If so, I should drink 3-4 of those water bottles a day? THANKS FOR YOUR HELP!! more

Resolved Question: Tech A says this engine has 2 camshafts. Tech B says this engine displacement is equal to approx 153 cubic in

4 cylinder in line, Displacement= 2.5 liters, DOHC 16 valve, 140 bhp/75000rpm, 190 foot lbs/6000rpm, EFI fuel system, compression ratio 8:1 Which is correct. Tech A, Tech B Both, Neither more

Voting Question: Chemistry, equillibrium problems (part 2) You can write just the answers, ill see the work tomorrow.?

5) A mixture of PCl5(g) and Cl2(g) is placed into a closed container. At equilibrium it is found that [PCl5]=0.75M, [Cl2]=0.1 M and [PCl3]=0.09M. PCl5---PCl3+Cl2. What is the value of Kc for the reaction? 6)Each of the following reactions occurs in a 1.0 liter container and is at equilibrium a)A(g)+B(g)--2C(g). b) 3A(g)+B(g)--2D(g) c)2A(g)+2C(g)--D(g). If the volume in each container is reduced by one-half, will Qc be greater then, less then, or equal to the Kc for each reaction? The answer are in order of a,b, and c. 7)For the system H2(g) +CO2(g)--H2O(g)+CO(g) at equlibrium, the addition of H2(g) would cause more ______ to form. 8)Consider the following system at equilibrium H2(g)+I2(g)--2HI(g) +heat. What will shift equillibrium to left. 9)2SO2(g)+O2(g)--2SO3(g) where (Delta)Hrxn=-198 kJ. The amount of SO2(g) at equlibrium increase when ____* 10)Consider the reaction Ag2SO4(s)--2Ag^+(aq)+SO4^-2(aq) for which delta H=18.8 KJ. This reaction can be shifted to the left by ____* more

Resolved Question: How to find molarity and vapor pressure?

I'm having trouble with two of my chemistry homework problems. *A solution is prepared by dissolving 52.5 g cesium chloride (CsCl) in 50.0 g water. The volume of the solution is 58.3 mL. Calculate the mass percent, molarity, molality, and mole fraction of the cesium chloride. I found the mass percent, molality, and mole fraction fine. I know molarity is mol solute (CsCl) per liters solvent (H2O). I thought 1000 g of water = 1 liter, but .312 mol CsCl/.05 kg H2O equaled the molality and that isn't right. I know g is a mass measurement and liters is volume, so I think my problem is my conversion of the amount of water. *A solution is prepared by mixing 40.0 g glucose (C6H12O6) with 700.0 g water. What is the vapor pressure of this solution at 25°C? (At 25°C the vapor pressure of pure water is 23.8 torr.) Glucose is a nonelectrolyte. I think I'm supposed to use Henry's law: P=kX but what is k for C6H12O6? Thanks for any help. more

Resolved Question: some chemistry questions?

27. Osmotic pressure is the pressure when two liquid levels are _____. A. stabilized B. unstable C. equal 30. Calculate the boiling point of a solution containing 678.8 milligrams of ethylene glycol (C2H6O2) in 105 mL of water. (Kb for water is .52, and the boiling point for water is 100.0°C.) Remember that for water, 1 liter is the same as 1,000 grams or 1 kilogram. A. 101.0°C B. 101°C C. 100.1°C D. 100.0°C 31. What is the freezing point of a 7.56 m solution of (NH4)2S in water? (Kf for water is 1.86, and the freezing point of water is 0.0°C.) (NH4)2S is an ionic compound. A. -43.2°C B. -42.2°C C. -14.1°C D. -14.06°C 32. The osmotic pressure of a solution is 2.59 atmospheres. If the solution is at a temperature of 31.5°C, what is the molarity of the solution? Assume an R value of (.0821 L) x (atm/mol) x (K). A. 0.104 M B. 0.108 M C. 9.65 M D. 9.7 M more

Resolved Question: do you like these ones?

Why didn't the clock work? It needed a hand! Why was the obtuse angle ugly? She wasn't a cute angle! What do Martians who use the Metric System say? Take me to your Liter! What snake does a math teacher like? An Adder! When does 2+3 become 10? When we do the addition wrong! if 1 = 5, 2 = 25, 3 = 125, & 4 = 525, What is 5 equal to? 1! Teacher: "What is seven Q plus three Q? Student: " Ten Q." Teacher: "You're Welcome!" What did the mathbook say to his troubled friend? Sorry, I cant help you; I got too many problems of my own! more

Resolved Question: Help with writing chem stoichiometry formuals please?

1. If 30.2g of aluminum react with HCL to produce aluminum chloride and hydrogen gas. 2. How many liters of HCL are produced by the reaction of 5.7L of hydrogen with an equal amount of chlorine? 3. How many liters of hydrogen are required to react with 0.45mol oxygen to produce water? 4. How many liters of SO2 are produced from the reaction of sulfur with 26.9L of oxygen? 5. How many grams of zinc chloride will be produced if zinc is allowed to react with 16.8L of chlorine at STP? I know how to solve them, I just can't write the balanced chem eqaution, please help. more

Resolved Question: look at the engine specifications listed in figure a3. technician a says the engine described in the figure?

uses a fuel mixture of eight parts air to one part fuel. technicican b says the engine described in the figure contains four valves per cylinder. which of the following statements in correct? a. only a is right b. only b is right c. neither FIGURE A-3 4cylinder in line displacement=2.5 liters DOHC 16 valve 140 bhp/7500 rpm 190 foot-lbs/6000 rpm EFI fuel system compression ratio 8:1 technicican a says the engine descrbed in figure a3 has two camshafts. technicican b says the engine displacement is equal to approximatley 153 cubic inches. which of the following statements is right? a. only b is right b. both are right c. neither technicican a says the engine described in figure a3 uses a carburetor to distribute the fuel. techn. b says the max. amount of engine torque occurs at an engine speeds of 7,500 rpm. which of the following is right? a. only a is right b. only b is right c. neither i was wrong with the answers i picked for them please help me more

Resolved Question: the basic unit of weight in the metric system;equal to 0.35 ounces???

1.centi- 2.improper fraction 3.liter 4.mixed number 5.gram 6.meter 7.deci- 8.milli- 10. least commom denominator more

Resolved Question: Solubility and Precipitation: Quatitative prediction of precipitation?

One liter of a 1.9×10-5 M solution of Ag+ is mixed with an equal volume of a 5.8×10-39 M solution of S2-. 1)Give the formula of the ionic solid that could potentially precipitate when this mixture is made. 2)Determine the solubility product expression for this potential precipitate, then use this expression to calculate the Qsp (a.k.a. trial ksp) based on the concentrations of each ion present in the new mixture. 3)Use a table of ksp values to determine the accepted value of ksp for your substance at 25°C. 4)Compare your Qsp to the accepted value of ksp. type "true" or "false" (no quotes) based on what you conclude about the following statement: A precipitate would form if the above mixture was made. more

Resolved Question: How many liters of HCl are produced by the reaction of 5.7 L of hydrogen with an equal amount of chlorine?

Resolved Question: Final chem questions.. please help.. i don't know these.. thanks!?

1. Using only these formulas, what formula would you expect for a compound of elements Q and Y? XY2 X2Z QZ A. QY B. QY2 C. Q2Y3 D. QY4 E. Q2Y 2. About how many moles of CO2 at STP will be found in 2.4 x 10^24 molecules? A. 2 Moles B. 3 Moles C. 4 Moles D. 5 Moles 3. How many liters are present in 32 grams of CH4 at STP a. 1 L b. 2 L c. 22.4 L d. 44.8 L 4. You have 25 grams of CaCO3... How many moles of it do you have? a. .25 mole b. .5 mole c. .75 mole d. 1 mole e. 1.25 moles 5. Which of the follwing quantities contains the greatest number of atoms? A. .2 mole of krypton (83.8g/mole) B. .5 mole of neon (20.2 g/mole) C. 13.8 grams of lithium (6.94 g/mole) D. 20 Grams of calcium (40.1g/mole) 6. Water at 100 degrees celsius has a vapor pressure equal to: A. 100 mm Hg (13.3 KPa) B. 0 mm Hg (0 KPa) C. 760 mm Hg (101.3 KPa) D. 1013 mm Hg (135.0 KPa) more

Resolved Question: Astronomy help?

The planet Saturn has a diameter equal to 9.46 times Earth's diameter. Its surface area is therefore ______ times Earth's surface area, and its volume is _____ times Earth's volume. How do I find surface area? A new planet (possibly a dwarf planet) has been discovered in the outer solar system. Its radius is estimated to be 6.89E+5 meters and its mass is 2.93E+21 kilograms. What is the density of this planet in kilograms per liter? In the distant past, the Moon was 4 times closer to the Earth than it is currently. How big was the Earth's force on the Moon back then compared to the force now? Thanks!on the 2nd problem... do i cube that first value even though its the radius, or do i cube the diameter?? thanks... more

Resolved Question: whats the answer?????????

using the accepted molar volume of 22.4 L/mol, how many liters is equal to 2.5 moles of oxygen gas at STP? more

Resolved Question: chemistry help!!problem!!!!?

How many liters of HCl are produced by the reaction of 5.7L of hydrogen with an equal amount of chlorine? more

Resolved Question: Please Help me! I need this in the next 10 to 15 minutes! Eighth Grade Math!!!! Please?

1. How many cubic feet of concrete is needed to buils a walkway 36 feet long, 3 feet wide, and 3 inches thick? The number of cubic needed equals how many cubic yards? 2. Solve this solution: 5x - 7x _< -4 - (-4) (but have the underscore directly under the less than sign) 3. Uriel buys a one-acre lot (4,840 sq. yd.) Use unit multipliers to convert this area to square feet. 4. 6 times the square root of 12 5. 5 times the square root of 5 times the square root of 5 6. Find the volume of a cyndrical cup with an inside diameter of 6cm and a height of 9cm. 7. In the metric system, small quantities of liquid are measured in milliliters or cubic centimeters. The capacity of the cup in problem 6 is about what fraction of a liter? 8. Arc AB measures 100 degrees. What is the measure of major arc AB? 9. Find the sum of the trinomials 2x + 3y - 4 and x - 3y + 7By the way...I've tried to be taught, didn't work. I do fine on the tests...She lets us all re-do them if they aren't good enough...So if you're just going to get on to tell me to "Do my own homework, or else you will call my mom" (Oooo, so scared!) Don't waste your time, I don't want to hear it!I swear, what the hell is wrong with you people?! You all are so obnoxious!!!!!!Thank you all who actually helped me! more