# Short answer find the quotient 6x^3-x^2-7x-9 ------------ 2x+3

143,010 questions, page 932
1. ## chemisty

I'm totally confused about this question....I don't know what kind of an answer the teacher is looking for. The worksheet has the header "Preparation of solutions for Beer's Law Lab." That said....here's the question: Describe the preparation of 250.0mL of

asked by desiree on February 22, 2011
2. ## Physics

A student walks from her apartment a distance d=139m to the bus stop at a speed of v1= 1.40m/s. The she realizes that she has forgotten her crib sheet for her exam and so runs back to her apartment to pick it up and returns to the bus stop at a speed v2=

asked by Janine on September 18, 2015
3. ## Chemistry

I keep calculating the square root of 3RT/M, and am not worrying about the temperature. I keep using 238 and 235 as my M when I do calculate it for both isotopes. Then I end up getting 1.00 as my final answer. That can't possibly be correct, can it? The

asked by Jess on November 10, 2010
4. ## Chemistry

When 0.655 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 107C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant

asked by eli on February 22, 2010
5. ## Chemistry

When 0.702 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 114C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant

asked by Taylor on February 22, 2010
6. ## Physics

A particle P of mass m kg is attached to two fixed points A and B by two identical model springs, each of stiffness k and natural length lo. The point A is at a height 1/4lo above the point B. The particle is free to oscillate vertically under gravity. The

asked by Prissy on March 30, 2013
7. ## 205

2. Discussion Question 1 • Due Date: Day 2 (Main forum) • View the Vacuum Sales digital story located on the Materials tab of your student Web site for Week Six. Of the two arguments provided in the digital story, which is valid and which is sound?

asked by axia on July 6, 2010
8. ## Spanish

I posted a question about nationality before-thank you for the answer Also are these correctly done? 1.Juan Gabriel Juan Gabriel es mexicano. 2.Carlos Vives Carlos Vives es colombiano. 3.Julio Iglesius y Enrique Iglesias son espanoles. 4. Samantha es

asked by Julian on December 10, 2011
9. ## Geography

What factors might account for the per capita incomes of Colorado, Delaware, Maryland, Massachusetts, New Jersey, and New York of the United States and Yukon Territory, Ontario, and Northwest Territories of Canada? My answer: The factors which may account

asked by Anonymous on September 6, 2013
10. ## Physics

A 64.7 kg astronaut is on a space walk away from the shuttle when her tether line breaks. She is able to throw her 14.1 kg oxygen tank away from the shuttle with a speed of 7.45m/s to propel herself back to the shuttle. Assuming that she starts from rest

asked by Ted on February 26, 2013
11. ## Math

A bicyclist is competing in a tournament. He is currently in a very hilly part of the tournament's course. For his current hill, his height in metres over time in minutes is modelled by the function; f(x)=-0.00075x^2-0.5825x+17.269 a) Estimate the

asked by Jennifer on February 14, 2014
12. ## childcare

The main goal of effective health education programs for young children is to A. provide children with the knowledge necessary to eat and exercise properly. B. promote critical-thinking skills, behaviors, and attitudes. C. teach children that authority

asked by tina on August 1, 2010
13. ## Homework Help Calculus

Use linear approximation to estimate the amount of paint in cubic centimeters needed to apply a coat of paint 1/100cm thick to a hemispherical dome with a radius of 18 meters. I tried it but I keep getting the wrong answer.Here's what I did below: sphere:

asked by Molly on October 15, 2013
14. ## Texas State History

I'm in 7th grade, and I,m in Unit 2, Lesson 8. I need a bit of help with first question. 1.) Which of the following statements best describes the Galveston hurricane? Advance warning of the storm led many people to evacuate the island Although it was very

asked by TheNewOne on January 25, 2019
15. ## English

1. Choose two of the scientists you read about in the Stories of Scientists unit. Compare and contrast these scientists. Answer this question in no fewer than two paragraphs. Be sure to include specific details about each scientist’s life, career, and

asked by Chad Bester on February 12, 2014
16. ## Chemistry

If 50.00mL of 1.10M NaOH is added to 25.00mL of 1.86M HCl, with both solutions originally at 24.70 degrees Celsius, what will be the final solution temperature? (Assume that no heat is lost to the surrounding air and that the solution produced in the

asked by Tasnim on October 5, 2012
17. ## French

So i have to answer questions from my french textbook called on y va! 1 and on page 34 theres this article about microbes and 3 called rhinovirus,lacotobacillus and bacillus cereus Heres the questions ________________________________________ Quel miscrobe

18. ## United States History

Hi I was wondering could help me with this question... :-) Why did it seem improbable that the thirteen colonies would come together and unite in a common bond? What past events made this seem like an unrealistic expectation? Off the top of my head, I can

asked by Isabel on October 17, 2006
19. ## geometry

Jackson is creating a water garden surrounded by a triangular patch of grass. If the pond will take up the space indicated by the circle, how many square feet of sod will he need to complete the garden (use 3.14 for and round your answer up to the next

asked by DD Girl on August 6, 2013
20. ## Science

Why do scientists use models? a: Scientists use models to learn about things that are too small, too large, or too complex to observe directly. < b:Scientists use models because doing so is always part of the scientific method. c:Scientists use models

asked by not+really on September 28, 2017
21. ## English

There was a young man from Saint Joe Who excelled with his arrow and bow. He'd take aim at the sun, And before he was done, The sun would lose half of its glow. 11. Which form best describes this poem? A. Narrative B. Concrete C. Limerick*** D. Haiku 12.

asked by gay chicken nuggets on March 8, 2019
22. ## Math

Please help me? A motorist takes a trip of 100 miles, traveling at 40 mph for the first 50 miles and 60 mph for the last 50 miles. What is the average speed in mph for the trip? The answer is not 50 mph.

asked by Felix Ferrer on October 2, 2007
23. ## Geometry

A model is made of a car. The care is 5 feet long and the model is 8 inches long. What is the ratio of the length of the car to the length of the model? 8:5 15:2 2:15 5:8 My answer is 2:15

asked by Lost on March 6, 2018
24. ## math

john has horses and chickens he has 3 less chickens than horses, if you count the total number of legs for chickens and horses you will get 24 how many chickens does john have? answer pls and show how did you get it thanks

asked by zar on October 27, 2016
25. ## logic

we thought the answer was 440. 1320/6=220. Then 1320-220=1100. then 1100/5=220. then subtract 1100-220=880 nd so on...does that make sense?

asked by gina on October 16, 2008
26. ## geometry

Tanya see a bird on top of a light pole that is 27 feet tall. If she is 50 feet from the light pole, approximately how far is she from the bird? Is the correct answer 57 feet? Thank you

asked by elijah on May 9, 2016
27. ## math

A water pitcher contains 2323 gallon of water. You add 5757 gallon of water to the pitcher. How much water does the pitcher contain? Write the answer in simplest form.

asked by yuo on May 25, 2016
28. ## AP Chemistry

For the reaction ? Al + ? CuSO4 ↽⇀? Al2(SO4)3+? Cu a maximum of how many moles of Al2(SO4)3 could be formed from 5.95 mol of Al and 1.31 mol of CuSO4? Answer in units of mol.

asked by Matt on September 19, 2012
29. ## Algebra2

Name the property of real numbers for -2(x+4)=-2x-8 associative property of multiplication communitive property of addition distributive property associate property of addition my answer is distributive property

asked by Steve on December 10, 2016
30. ## Math

Two poles are 20 feet tall and 30 feet tall, respectively. If they are 30 feet apart, how far is it from the top of one pole to the top of the other pole? Round your answer to the nearest tenth of a foot.

asked by Amanda on February 24, 2014
31. ## AP Chemistry

For the reaction ? Al + ? CuSO4 ↽⇀? Al2(SO4)3+? Cu a maximum of how many moles of Al2(SO4)3 could be formed from 5.49 mol of Al and 4.09 mol of CuSO4? Answer in units of mol

asked by Tina on September 13, 2011
32. ## math

if a camp has food to last for 25 days but after 10 days 150 people went back from the camp now the food lasts for 30 days. Answer how many people were present at beginning

asked by hafsa on March 9, 2018
33. ## hellllllpppp

Karen read 23 pages of a book. the book has a total of 63 pages what fraction of the book did karen read? write the answer in simplest form

asked by Jewel on November 1, 2016
34. ## Math

What percentage of the students who chose biking were girls? Chart Walking Boys= 3 Girls=6 Biking Boys=5 Girls=3 Skateboarding Boys=2 Girls=1 A. 30% B. 37.5% C. 40% D. none of these Is the answer D? Thank you

asked by Nikita on March 31, 2015
35. ## Math

If one honeybee make 1/12 teaspoon of honey during its lifetime, how many honey bees are needed to make 1/2 teaspoon of honey? My answer would be 6 Can you tell me if I am right or wrong and if I am wrong how would I go about figuring this out?

36. ## Math (Logarithms)

How do u do logarithms where there is a log on one side and a number on the other... Example- -21.044=log(P/30) I don't want just an answer to the example, i need to know how to do it please... convert your log equation into an exponential equation.

asked by Emily on May 8, 2007
37. ## Math

About what percent of the total population believed saying 136,800,000 to be true? Total population: 250,000,000? Answer is 55% how did you get this percent?

asked by Dwayne on September 6, 2011
38. ## Square roots

The diagonal of a square has length square root 2 X s, where s is the length of a side of the square. What is the length of the diagonal in a square with sides that are 13 cm? Round your answer to the nearest tenth.

asked by Maddy on March 7, 2012
39. ## geography

Which is closer to the South Pole, the southern tip of Africa or the most southern edge of mainland Australia? My answer is the most southern edge of mainland Australia.

asked by Reed on October 31, 2011
40. ## math

Searches related to what is the answer to Triangle ABC has two sides that measure 12 inches and 16 inches. Which could be the measures of the corresponding sides of a triangle that is similar to triangle ABC? 1. 10 in and 14 in 2. 9 in and 12 in 3. 6 in

asked by Donna on February 15, 2018
41. ## algebra 1

Natalie made a mistake in the following problem. What line was the mistake made in? Show your work and give the correct answer. Line 1 6(4) ÷ 2 − 1 + 5 Line 2 6(4) ÷ 1 + 5 Line 3 24 ÷ 1 + 5 Line 4 24 + 5 Line 5 29

asked by marcus on December 22, 2010
42. ## One college algebra ?

Hello I have a question about a problem. The problem is (- 25/9)^3/2. Its multiple choice however I think they are tricking us. A. 125/27 B. - 125/27 C. 125/3 D. Not a real number I got A as an answer but feel that it is not a real number?

asked by Kristen on January 16, 2013
43. ## math

A coin is tossed and a standard number cube is rolled. What is the probability that the coin shows heads and the number cube shows an even number? 1/4 1/6 1 1/2 i think the answer is 1/4

asked by mmm on June 3, 2019
44. ## math

Determine whether the statement is always true, sometimes true, or never true. 3) The length of the hypotenuse of a right triangle equals the length of one of the legs of the triangle. Answer choice: a.) always true b.) sometimes true c.)never true

asked by nicole on April 14, 2010
45. ## Chemistry

Liquid methyl alcohol, which has polar molecules, will dissolve: A. only solutes that are other polar liquids. B. only solutes that are other liquids. C. nonpolar solutes. D. polar solutes. Is the answer d.

asked by Cortney on March 17, 2015
46. ## Grammar

What is the prefix, root and suffix of the word "subscribe"? My Answer: prefix - sub root - scrib suffix - e Can the suffix be a single letter? What about the word "misused"? Please help!? Am I right?

asked by Maria on June 9, 2012
47. ## social studies

people in countries with tend to be happier A) high incomes B) low incomes C) more civil liberties D) high incomes and more civil liberties My answer is B.

asked by Dee on September 29, 2013
48. ## Language Art

There is this Kingdom hall of Jehovah’s Witnesses in Arvada Colorado that I just love to go to every Sunday and Tuesday. If I were to describe it, and why I love it so much, I would want to capitalize on things like the talks that the brothers give,

asked by Gwen on May 15, 2014
49. ## Chemistry help

Hey...I just want to make sure my answers to these questions are correct... 1. d=2.507 g/1.22 mL = 2.054918033 g mL^-1 explain how both the rules for significant figures and the random error calculation (p(d) = +-0.34 g mL^-1) indicate that the digits

asked by Bryant on January 24, 2007
50. ## English 9

When considering why Henry was irritated with his mother in the red badge of courage which reading strategy would be the most effective? A. Make a connection between yourself and Henry. B. Visualize Henry in an argument with his mother. C. Summarize the

asked by Hi!!! on October 23, 2018
51. ## geometry

If a rectangular solid has a volume of 27 and at least one edge the length of 3,which of the following Must be true? My thoughts lead me to think D is the answer,but I,m not sure?? a.The solid is a cube b.Exactly 4 edges of the solid have a length of 3

asked by JOY on May 25, 2011
52. ## Stressed syllables

Here is a list of words now can someone help me find the stressed syllables: 1. diff(icult) 2. (imag)ine 3. (fam)iliar 4. relative 5. compan(ions) 6. (won)derful 7. impat(ience) 8. (coun)tryside 9. for(gott)en 10. univ(erse) 11. un(iver)sal 12. (acc)ident

asked by Holly on February 19, 2007
53. ## Force between Charged Spheres (Physics 11th Grade)

What is the force between two small charged spheres that have charges of 2 x 10^-7 and 3 x 10^-7 if the distance of r is 30 cm. I think you use Force = the constant of K multiplied by the product of the charges divided by the square of the distance again.

asked by Angela on February 25, 2011
54. ## physics

An object falling under the pull of gravity is acted upon by a frictional force of air resistance. The magnitude of this force is approximately proportional to the speed of the object, which can be written as f = bv. Assume that b = 14 kg/s and m = 41 kg.

asked by polo Q on February 28, 2011
55. ## Math

The average daily high temperature for the month of September in Los Angeles is 27 degrees Celsius (81 degrees Fahrenheit) with a standard deviation of 2.78 degrees Celsius. How hot are the hottest 10.03% days during September in Los Angeles? Provide your

asked by Kleena on October 8, 2016
56. ## physics

Three forces act on a moving object. One force has a magnitude of 83.4 N and is directed due north. Another has a magnitude of 47.2 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the object

asked by landan on June 30, 2013
57. ## Designing Specialty Areas

It's recommended that indoor physical centers be set up in stations. Which of the following statements about stations is true? A. Most centers will need to have close adult supervision. B. Two or three stations are typically sufficient. C. Centers should

asked by Priscila on April 9, 2017
58. ## Math

Solve the system using any algebraic method. 2x - 2y + z = 3 5y - z = -31 x + 3y + 2z = -21 ______________________ The answer I got for this is ( -26, 6,67) but I know its wrong and I don't know why. Help please >< my work is at the bottom I used

asked by Linda on November 1, 2011
59. ## physics

Three forces act on a moving object. One force has a magnitude of 76.5 N and is directed due north. Another has a magnitude of 46.3 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the

asked by Tyler on January 11, 2017
60. ## calculus

A ball is dropped from the top of a building. The height, , of the ball above the ground (in feet) is given as a function of time, , (in seconds) by y = 1640 - 16t^2 y'= -32t When does the ball hit the ground, and how fast is it going at that time? Give

asked by Ashley on November 14, 2010
61. ## physics

Three forces act on a moving object. One force has a magnitude of 61.9 N and is directed due north. Another has a magnitude of 52.0 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the object

asked by Robin on September 23, 2012
62. ## Algebra

I am having such a hard time in this class. Hopefully someone here can help me to understand some of what they are trying to teach me. I have a problem here and have been working on it for about an hour now and I can not figure it out. I need to come up

asked by Stephanie on February 15, 2010
63. ## Physics: electricity

A $$m=20\,\mathrm{g}$$ mass with charge $$q=+8\,\mathrm{\mu C}$$ hangs from a spring of stiffness $$k=50\,\mathrm{N/m}$$. If an infinite plane with charge density $$\sigma=+3\,\mathrm{\mu C/m^2}$$ is placed $$d=5\,\mathrm{cm}$$ below the masses original

asked by Jerry on February 5, 2019
64. ## math

Can you tell me if I have the correct answer to this problem. A formula to determine the area of a person’s skin in square inches is s=15.7w^0.425 h^0.725 where w is weight in pounds and h is height in inches. Use S to estimate the area of a person’s

asked by patiance on April 30, 2011
65. ## math

The model of a new apartment building is 10 in, x 28 in x 18 in. the architect plans for the new building to be 144 times the size of the model. What will the volume and surface area of the new building be when it is completed? 10 x 18 x 28 = 5040 x 144^3

asked by nathaniel on March 27, 2015
66. ## Physics

A 10.5 g bullet is fired into a 104 g wooden block initially at rest on a horizontal surface.The acceleration of gravity is 9.8 m/s2. After impact, the block slides 6.66 m before coming to rest.If the coefficient of friction between block and surface is

asked by Bri on January 17, 2016
67. ## Math help needed .???

I really need help in answering the steps and the answer to this question? In a recent year, North Carolina produced 1,300,000,000 pounds of turkey. This was 18.6% of the U.S. total in that year. Calculate the U. S. total turkey production for that year.

asked by Lisa on December 8, 2008
68. ## Chemistry

Hello, I had a lab about calorimetry and one of the questions was if the reaction of acetone with hypochlorite is an oxidation/reduction or acid/base. Would the answer be: oxidation/reduction because the oxygen from the hydroxide from the Sodium hydroxide

asked by Robert on May 16, 2012
69. ## Chemistry

I am trying to solve a buffer problem. I know I need to use the Henderson-Hasselblach equation but I am not getting the correct answer. The problem is: Propionic acid is a weak monoprotic acid with Ka = 1.3×10-5 M. NaOH(s) was gradually added to 1.00 L of

asked by Cara on April 2, 2015
70. ## Physics

A 10.5 g bullet is fired into a 104 g wooden block initially at rest on a horizontal surface.The acceleration of gravity is 9.8 m/s2. After impact, the block slides 6.66 m before coming to rest.If the coefficient of friction between block and surface is

asked by Luhan on January 18, 2016
71. ## L.A.Help!!!!!!

Why does the author organize"The Seasons Curmudgeon Sees the Light,"as she does? By Mary C. Curtis A. to contrast fall weddings and song with spring weddings and song. B. to contrast reading with gardening. C. to show her feelings about spring have

asked by blue on November 14, 2014
72. ## physics

An object falling under the pull of gravity is acted upon by a frictional force of air resistance. The magnitude of this force is approximately proportional to the speed of the object, which can be written as f = bv. Assume b = 16 kg/s and m = 58 kg. (a)

asked by Anonymous on September 29, 2012

the centre point of a circle is 5,3. the top most point of the circle is the vertex. the radius of the circle is 5 and one of the zeroes is 9. figure out the vertex. tehn figure out the equation and convert it in standard form? p.s-plz exaplain step to

asked by Redspider on March 30, 2009
74. ## PHYSICS

Three forces act on a moving object. One force has a magnitude of 81.2 N and is directed due north. Another has a magnitude of 47.9 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the object

asked by Anonymous on October 4, 2015
75. ## physics

Three forces act on a moving object. One force has a magnitude of 62.6 N and is directed due north. Another has a magnitude of 45.9 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the object

asked by dan on October 3, 2014
76. ## physics

Three forces act on a moving object. One force has a magnitude of 83.4 N and is directed due north. Another has a magnitude of 47.2 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the object

asked by howard on July 12, 2013
77. ## Math

Given a 30 meter x 60 meter garden with a circular fountain with a 5 meter radius, calculate the area of the portion of the garden not occupied by the fountain. 30 x 60 = 1800 3.14 x 25 = 78.25/2=39.125 1800 - 39.125 = 1,760.875 but this is incorrect The

asked by Pope on June 3, 2014
78. ## chemistry

Household bleach contains (NaClO)2 that decomposes in water, NaClO + h2o = Na+ + OH- + Cl2 + O2 If 15ml bleach containing 5.85℅ NaClO is allowed to decomposes completely, then hoe many mL of o2 at 22C and 755mmHg can be liberated. Density of bleach=

asked by Nancy on September 30, 2014
79. ## math

I have a flat piece of plywood that measures 45 inches in width and 75 inches in length. I want to cut the board into identical square pieces with the integer side lengths and use the entire piece of wood. What are the dimensions (width & length) of each

asked by He who should not be named on March 27, 2014
80. ## CHEMISTRY

A concentration cell is constructed of two hydrogen electrodes. The pressure of H2 is 1.00 atm in each hydrogen electrode. One of the electrodes is immersed in a solution with [H+] = 1.0 M and the other in a solution with 0.62 M NH3. What will be the value

asked by sabrina:help please on December 1, 2012
81. ## Physics

3. A particle of mass 0.5 kg has velocity 2 m/s. It is moving at constant velocity along a line that passes 0.5 m away from the origin, as shown in the figure below. Rank the angular momentum of the particle when it is at the points A, B, and C from

asked by Sarah on December 27, 2011
82. ## Geography

The waters surrounding Japan and the nearby ocean currents help to make Japan's climate. moderate. very hot. very cold and wet. tropical. I've been researching and I see that the Japan current warms the air and the Oyashio Current cools the air... I think

asked by Renee on December 9, 2009
83. ## Chemistry - Stoichiometry/gases

When 2.38 g of methane burns in oxygen, 119 kJ of heat is produced. What is the enthalpy of combustion (in kJ) per mole of methane under these conditions? Your answer will be in kJ/mol. the Molar Mass of methane is 16.04, so I did 2.38g/16.04=0.14838 mol

asked by Jamie on July 23, 2017
84. ## 7th grade Science

Can you check my answer below, please? Elizabeth did an experiment to test the effect of salt water on rusting rate of a nail. She put 3 nails in the same bowl of salt for one week. How could she improve her experiment? Ans: 1) place each nail in a

asked by Alexis on October 1, 2014
85. ## Physics

A car of mass 1380 kg rests on a hydraulic lift with a piston of radius 0.24 m that is connected to a second piston of radius 0.029 m. If the car is just barely lifted off the ground, what is the force at the second piston? my work: 1380kg/.24m = F/.029m

asked by Wrenn on November 14, 2015
86. ## Physics

Fred Flintstone’s club–ax is made up of two parts:  an uniform 2.5 kg stick and a symmetrical 10 kg stone attached to the end of the stick.  The dimensions of the club-ax are shown in the figure.  How far is the center of mass from the handle end of

asked by Nina on July 19, 2017
87. ## Tutor

Hi, I am a student a Michigan's connections academy and I need a tutor to help me out with some types of math, science, social studies. And a few others some stuff I don't understand and all of my teachers don't explain very good except for my math

asked by Black Bandit on February 22, 2018
88. ## Math

Brenda and her family were driving to her grandmother’s house during a holiday. During the drive, Brenda fell asleep halfway through the trip. When she awoke, her family still had to travel half the distance that she had traveled while she was sleeping.

asked by MATH Help Please on November 17, 2011
89. ## CHEMISTRY

I'm showing the procedure of the lab and what was asked. What I have question on is towards the end. Much help would be appreciated a lot!! First I had to balance the equation given to me: 2 Na HCO3 (s) Δ over arrow (produces) Na2 CO3 (s) + CO2 (g) + H2O

asked by Allie on February 22, 2016
90. ## english 20

Pronoun case 20a. My best friend and I are going to Hawaii this summer. 20b. My best friend and me are going to Hawaii this summer. My answer is: is 20a

asked by Rose on April 1, 2008
91. ## math

Which answer choice gives the correct explanation for this problem? -35 ÷ -7 A) 5 groups of 7 positives B) 5 groups of 7 negatives C) 7 groups of 5 positives D) 7 groups of 5 negatives I think it is a

asked by crossfire on December 2, 2015
92. ## chemistry

Ca(OH)2(s) −→ CaO(s) + H2O(g) Given: Ca(OH)2(s) −→ Ca(s) + O2(g) + H2(g) ∆H = 973.3 kJ/mol 2 Ca(s) + O2(g) −→ 2 CaO(s) ∆H = −1269.8 kJ/mol 2 H2(g) + O2(g) −→ 2 H2O(g) ∆H = −483.6 kJ/mol Answer in units of kJ/mol.

asked by jane on March 28, 2019
93. ## chemistry

Fe2O3(s) + 3 CO(g) −→ 2 Fe(s) + 3 CO2(g) Given: 2 Fe2O3(s) −→ 4 Fe(s) + 3 O2(g) ∆H = 1616.6 kJ/mol CO(g) −→ C(s) + 1 2 O2(g) ∆H = 110.5 kJ/mol C(s) + O2(g) −→ CO2(g) ∆H = −393.5 kJ/mol Answer in units of kJ/mol.

asked by jane on March 28, 2019
94. ## physics

A force is applied to a 2.7 kg mass and produces 2.9 m/s 2 acceleration. What acceleration would be produced by the same force applied to a 14.9 kg mass? Answer in units of m/s 2

asked by Britney on September 12, 2012
95. ## math

IF 7/12 CLASS HAS BROWN HAIR 2/12 HAS RED HAIR ,WHAT FRACTION MORE OF THE STUDENTS HAVE BROWN HAIR THAN RED HAIR, I GOT AN ANSWER OF 7/12 AM I CORRECT

asked by Americal on August 28, 2012
96. ## physics

A force is applied to a 1.3 kg mass and produces 4.2 m/s 2 acceleration. What acceleration would be produced by the same force applied to a 7.5 kg mass? Answer in units of m/s

asked by Anonymous on September 22, 2011
97. ## math - check plz

She has 2 to the 10th power of fruit flies in each of 2 to the 2nd power. How many fruit flies does she have in all? (answer as power) 2to the 11th power?

asked by Summer on October 25, 2010
98. ## english 22

Pronoun case for who and whom 22a. To who should we send the letter of commendation? 22b. To whom should we send the letter of commendation? My answer is: 22b

asked by Rose on April 1, 2008
99. ## Business Keyboard.

The topic is nursing, can anyone help me answer these. What is your job? How has technology changed your job? How does technology relate to your job? How does technology help you in your job? In your opinion, do you like technology? Why does it help you?

asked by Savannh on August 31, 2018
100. ## Algebra

The mass of Earth is about 3 × 10-3 times the mass of Jupiter. The mass of Earth is about 6 × 10 24 kg. What is the mass of Jupiter? Give your answer in scientific notation.

asked by Brad on March 6, 2017