Popular questions and responses by tori
  1. chemistry

    The fluorocarbon compound C2Cl3F3 has a normal boiling point of 47.6 ∘C. The specific heats of C2Cl3F3(l) and C2Cl3F3(g) are 0.91 J/g⋅K and 0.67 J/g⋅K, respectively. The heat of vaporization for the compound is 27.49 kJ/mol. Calculate the heat

    asked on February 2, 2015
  2. Chemistry

    A solution of 1.50g of solute dissolved in 25.0 mL of H2O at 25C has a boiling point of 100.95C. What is the molar mass of the solute if it is a nonvolatile non electrolyte and the solution behaves ideally. (d of H2O at 25C=0.997g/mL)?

    asked on February 12, 2012
  3. math

    a woman puts $580 into a savings account for one year. the rate of interest on the account was 6 1/2%. How much interest for the year in dollars and cents?

    asked on August 10, 2013
  4. Chemistry

    a chemical engineer placed 1.520 g of a hydorcarbon in the bomb of a calorimeter. The bomb was immersed in 2.550 L of water and the sample was burned. The water temperature rose from 20.00C to 23.55C. If the calorimeter (excluding the water) had a heat

    asked on October 31, 2011
  5. Algebra

    The parabola y=x^2 is scaled vertically by a factor of 1/10. What is the equation of the new parabola? y=______ I dont get what it is asking. Please help!

    asked on March 8, 2020
  6. chemistry

    ammonium nitrate decomposes to N2O and water at temperatures between 250 C and 300 C. Write a balanced chemical reaction describing the decomposition of ammonium nitrate, and calculate the standard heat of reaction using the appropriate enthalpies of

    asked on March 28, 2012
  7. calculus

    A hollow cone has height 5 feet and base diameter 4 feet. The vertex of the cone is pointed down so that it can serve as a container. Water is poured into the cone at the rate 3/2 cubic feet per second. At what rate (in feet per second) is the depth of the

    asked on March 5, 2011
  8. Algebra 2. Please help ASAP

    The pH of a liquid is a measure of how acidic or basic it is. The concentration of hydrogen ions in a liquid is labeled [H+]. Use the formula pH = –log[H+] to find the pH level, to the nearest tenth, of a liquid with [H+] about 5.4 x 10–14. A. 14.7 B.

    asked on December 14, 2012
  9. world civilizations

    1. All of the following were factors favoring British industrialization, except A. increased agricultural production. B. rising urbanization and higher wages. C. a decline in domestic demand for manufactured goods. D. immediate or canal access to ocean

    asked on January 15, 2014
  10. chemistry

    Given the following equation, how many grams of PbCO3 will dissolve when exactly 1.0 L of 1.00 M H+ is added to 6.00 g of PbCO3? When the equation is PbCO3(s) + 2H(+)(aq) = Pb(2+)(aq) + H2O(l) + CO2(g) Please explain in detail, step by step

    asked on February 16, 2012
  11. Algebra

    You have 600 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area. What is the largest area that can be enclosed?

    asked on October 17, 2010
  12. Chemistry

    Sulfur dioxide is used to make sulfuric acid. one method of producing it is by roasting mineral sulfides, for example, FeS2(s) + O2 (g) ---> SO2(g) + Fe2O3(s) (unbalanced). A production error leads to the sulfide being placed in a 950-L vessel with

    asked on October 27, 2011
  13. Physics

    This is a multiple choice question: You toss a (wrapped) sandwich to a friend leaning out of a window 10 m above you, throwing just hard enough for it to reach her. At the same instant, she drops a silver dollar to you.At what position do the dollar and

    asked on October 10, 2016
  14. Physics

    A car accelerates for 5 seconds at 2.1 m/s^2. If the car initially had a speed of 10 m/s, what is the new speed?

    asked on October 7, 2012
  15. math

    You purchase a computer for $875.00 plus 5% sales tax. You decide to finance it through the store's 0% program for 12 months. The terms state you pay nothing until the 12 months are over. When you receive the bill, you forget to pay it and are assessed a

    asked on November 20, 2017
  16. Language

    Give a common noun for the proper noun. Thursday

    asked on September 3, 2007
  17. chemistry

    How many grams of HCl can you make from 110.0 g H2S in the reaction 3 H2S + 2 FeCl3 ---> 6 HCl + Fe2S3

    asked on June 2, 2020
  18. Physics

    a ball with a mass of 8.0kg is suspended by two wires: 1) 0.6 meters and 2) 1.0 meters from a horizontal arm of 0.8 meters, which is attached to a vertical shaft. The two wires and the horizontal arm forms a triangle. The shaft is in uniform rotation about

    asked on November 7, 2017
  19. Check my answer please!

    Macy enters a formula and presses Enter. She sees #Data! in the cell instead of the answer. This means _____. A) the cell is not wide enough B) there is too much data C) the answer is greater than one million D) there is a mistake in the formula I am 90%

    asked on March 13, 2017
  20. Math/Pre Algebra HELP ME!

    1. What are the coefficients in the polynomial 5x^2 + 2x - 4? A. 5,2 B. -5,2 C. 5,2,-4 ** D. 5,-2,-4 For questions 2 and 3 add or subtract. 2. (m^2 - m - 4) + (m - 5) A. m^2 - 2m + 9 B. m^2 + 2m - 9 C. m^2 - 2m - 9 ** D. m^2 - 9 3. (5x^2 + x - 3) - (-2x^3

    asked on June 2, 2016
  21. Physics

    A sound wave with a frequency of 260 Hz moves with a velocity of 343 m/s through air. What is the distance from one condensation region (area of maximum pressure) to the next?

    asked on September 24, 2015
  22. Calculus

    Use the intermediate value therom to show that there is a root of the given equation in the specified interval. x^5-7=2(25-x); (2,3) Please explain for understanding and show work, Thank you in advance :)

    asked on February 8, 2013
  23. physics

    A 47.0-g Super Ball traveling at 26.5 m/s bounces off a brick wall and rebounds at 20.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.10 ms, what is the magnitude of the average acceleration of the ball during

    asked on January 25, 2013
  24. chemistry

    How many molecules are in 3.78 moles of carbon dioxide?

    asked on November 22, 2011
  25. maths

    A broken clover has 2 leaves, a normal clover has 3 leaves and a lucky clover has 4 leaves. In a bunch of these clovers , there are twice as many normal clovers as broken clovers and 5 times as many normal clovers as lucky clovers. The bunch has a total of

    asked on October 8, 2011
  26. Physical Science

    A quantity of water is poured into a graduated cylinder, which then reads 145ml. what is the mass of the water in kilograms?

    asked on January 13, 2011
  27. chemistry

    1. Harry titrates vinegar with 0.952 M NaOH. The sample was 25.75 mL of vinegar, and it took 19.85 ml of 0.952 M NaOH to reach endpoint. What are the grams of acetic acid/100 mL of vinegar? Is this vinegar?

    asked on December 8, 2019
  28. Health care

    At what is can most children begin to cooperate during a visual acuity and stereopsis screening? A. As soon as they can sit up B. 3 years C. Six months D. One year

    asked on October 23, 2019
  29. Calculus

    An innovative rural public health program is reducing infant mortality in a certain West African country. Pretend the program in Senegal has been reducing infant mortality at a rate 8.7 % per year. How long will it take for infant mortality to be reduced

    asked on January 28, 2018
  30. math

    Rewrite each equation to isolate the indicated variable. y = 9x + 2 for x df = g - 10 for d

    asked on December 8, 2017
  31. math

    Your original purchase price was $950.00 plus 5% sales tax. You enter into an agreement where the interest (12.5% APR) is waived for the first 12 months provided you make the required monthly payments; otherwise the interest is accrued from the date of

    asked on November 20, 2017
  32. Physics

    a projectile returns to its original height after 4.08 seconds, during which tie it travels 6.2 meters horizontally. If air resistance is ignored, what was the projectile's initial speed?

    asked on November 7, 2017
  33. Really quick question

    (this course is called Business Computer Info System fyi) Describe how you would select a function in an spreadsheet. ??? Please help!

    asked on March 13, 2017
  34. Math (again) - ASAP please

    The scatter plot below shows the profit earned each month by a new company over the first year of operation. h-t-t-p-s-: //cornerstonetx.ignitiaschools.-c-o-m/media/g_alg01_ccss_2016/3/img_alg1u03l12_13.-g-i-f The owner writes a line of best fit equation,

    asked on February 27, 2017
  35. Business

    Dukas Corporation's net cash provided by operating activities $218,000; its net income was $203,000; its capital expenditures were $146,000 and its cash dividends were $49,000. What is the company's free cash flow?

    asked on January 19, 2016
  36. Chemistry

    At 28.4 g sample of aluminum is heated to 39.4 degrees Celsius and then is placed in a calorimeter containing 50.0g of water. Temp of water increases from 21.00 degrees Celsius to 23.00 degrees Celsius. What is the specific heat of aluminum?

    asked on May 7, 2015
  37. World civilizations

    All of the following were factors favoring British industrialization, except A. increased agricultural production. B. rising urbanization and higher wages. C. a decline in domestic demand for manufactured goods. D. immediate or canal access to ocean ports.

    asked on January 15, 2014
  38. Algebra 2

    Suppose you invest $1600 at an annual interest rate of 7.9% compounded continuously. How much will you have in the account after 10 years? A. $35,254.34 B. $3,525.43 C. $3,435.91 D. $17,315.27

    asked on December 14, 2012
  39. chemistry

    Calculate the Molecular Weight (MW) of a hydrocarbon as if 0.5813 g of this gas completely fills a 250.0 mL flask at a temperature of 24.4 C and pressure of 742.6 mmHg. Show all work and assume ideal behavior.

    asked on August 28, 2012
  40. Social Sudies

    I can't find the answer to my crossword puzzle! Here it is: A nation's factories, machines, etc. are it's____________capital. I know it's an 8 letter word, but that's all!

    asked on April 11, 2012
  41. geometry

    A farmer has a triangular field with sides that measure 120 yards, 170 yards, and 220 yards. Find the area of the field

    asked on February 16, 2012
  42. Chemistry

    FeS2 (s) + O2(g) -----> SO2(g) +Fe203(s) (unbalanced) a production error leads to the sulfide being placed in a 950-L vessel with insufficient oxygen. Initially, the partial pressure of O2 is 0.64 atm, and the total pressure is 1.05 atm, with the balance

    asked on October 13, 2011
  43. Chemistry

    During a reaction, you see that the heat (q) given off is 4.6 cal calories. Knowing that you used a mass of 100 g and that the temperature change was 7.85°C, what is the specific heat of this reaction?

    asked on October 10, 2011
  44. Chemistry

    During a reaction, you see that the heat (q) given off is 4.6 cal calories. Knowing that you used a mass of 100 g and that the temperature change was 7.85°C, what is the specific heat of this reaction?

    asked on October 10, 2011
  45. maths

    how many 3-digit numbers have exactly 2 digits that are the same?

    asked on October 8, 2011
  46. Composition

    Can youplease help me choose the correct word to use? I don't know (who/whom)I should call to babysit?

    asked on June 9, 2011
  47. ap chem

    how would each error affect the molar mass of antifreeze ( too high, too low, no effect. a) the thermometer used actually read 1.4 too high b) after measuring the 50 of distilled water to make an antifreeze solution you spilled some. c)you lost some of you

    asked on January 24, 2011
  48. foundation of science

    what parts of the ladder corrsponds to the energy level of the atom?

    asked on September 26, 2010

    I need to evaluate the effects of government trade policy on economic behavior. In addition I have to incorporate real world examples in today's economic situation.

    asked on April 19, 2010
  50. Social Studies

    Where is a good place for me to find help with 5th grade social studies homework? I am having difficulty with U.S. History, Rise of businesses, time period: 1850-1915. Thanks!

    asked on December 3, 2007
  51. Geometry

    find 1 counter example to show the each conjecture is false. that means prove the follwing statment false. The product of 2 positive numbers is greater than either number. ok so I know product means to multiply but if you multiply you get a bigger number .

    asked on August 22, 2007
  52. chemistry

    percentage of error for experimental mole ratio, (1:3:1) along with theoretical ration (1:1:1:1:1) answered below

    asked on March 8, 2007
  53. chemistry

    percentage of error for experimental mole ratio, (1:3:1) along with theoretical ration (1:1:1:1:1) You need to clarigy what you want.

    asked on March 8, 2007
  54. Pre Algebra

    Determine the measures of ∠L and ∠M When N is 48

    asked on October 1, 2019
  55. Pre Algebra

    In the figure shown, lines 1 and 2 are parallel. The sum of the measures of angles 4 and 5 is 150 °. What is the measure of angle 1?

    asked on October 1, 2019
  56. math

    i need help with this question evaluate 5(14-2^3)+ 8/2 =?

    asked on August 27, 2018
  57. calculus

    Pretend the world's population in 1988 was 4.9 billion and that the projection for 2017, assuming exponential growth, is 7 billion. What annual rate of growth is assumed in this prediction?

    asked on January 28, 2018
  58. math

    If V = 9 volts and I = 0.5 amps, what is the value of R? _____ohms Part 2: Rewrite the equation for I.

    asked on December 8, 2017
  59. math

    Write the desired equivalent equation, and identify properties used to do so. Then solve. Ohm's law of electricity states that V = IR, where V = voltage, I = current, and R = resistance. Rewrite the equation for R.

    asked on December 8, 2017
  60. math

    Ravi has started a business importing handwoven and embroidered linen from India. His Indian supplier charges him 460 rupees per meter for the fabric. He wants to make a profit of $4 per yard. How much must Ravi charge per yard for the imported fabric? Use

    asked on December 8, 2017
  61. math

    The owner of a pool cleaning business wants to know how much time, on average, his workers spend cleaning a pool. Last week, 7 employees each worked a 6-hour shift. In all, they cleaned 42 pools. Which is the most appropriate unit to calculate a answer to

    asked on December 8, 2017
  62. math

    Write an expression that converts 50 liter per minute into milliliters per second.

    asked on December 8, 2017
  63. math

    Write an expression for each conversion. A cupcake shop sells an average of 14 dozen cupcakes a day to about 50 customers. What is their average sales rate in cupcakes per customer?

    asked on December 8, 2017
  64. math

    Write an expression for each conversion. There are 8 pints in a gallon. How would you convert 13 pints into gallons?

    asked on December 8, 2017
  65. physics

    Score: 0 / 1 Tries left: 10 Question 5 A large crate has a mass of 214 kg. A horizontal force of positive 214 N is applied to it, causing it to accelerate at 0.130 m/s2 horizontally. What is the force of friction opposing the motion of the crate? Use the

    asked on November 15, 2017
  66. Physics

    You find that if you hang a 1.90 kg weight from a vertical spring, it stretches 2.90 cm . Part A What is the force constant of this spring in N/m? Part B How much mass should you hang from the spring so it will stretch by 9.06 cm from its original,

    asked on October 29, 2017
  67. English

    Can someone help me come up with a thesis on how has the word family evolved to follow historical, social, and cultural changes over time? I am having a very difficult time. thanks!

    asked on June 28, 2017
  68. Algebra Help ASAP PLEASE!

    ((I forgot how to do find inverse functions and this is important)) Find the inverse function of g(x) = 2x + 4. A) g^(-1)(x) = 4x + 2 B) g^(-1)(x) = 2x + 1/2 C) g^(-1)(x) = 1/2x - 2 D) g^(-1)(x) = 2x - 4 I *think* it might be C but I'm not sure.

    asked on March 16, 2017
  69. Science:Just need quick help

    I am very tired and can hardly think straight. Thanks in advance to those who help. The amount of each size particle in soil is the particle size distribution. Is putting soil and/or sand in a bottle of water a good way to determine particle size

    asked on March 14, 2017
  70. Pollution Essay -- HELP PLS!

    I'm doing a small essay on water pollution (like nuclear radiation accidents, trash, etc.). I just need one final question answered to finish this but I need some help. "Discuss steps that can be taken by individuals, businesses, and/or governments to

    asked on March 7, 2017
  71. Algebra 1 - Help!?

    Two big questions that are driving me mad. 1) Given the following linear function sketch the graph of the function and find the domain and range. f(x) = 2/7x - 2 2) Given the following linear function sketch the graph of the function and find the domain

    asked on March 2, 2017
  72. Math - ASAP Please

    (Slope-Intercept Form) Which of the following lines has a slope of -1/2? A) x + 2y = 0 B) x - 2y = 0 C) -x + 2y = 0

    asked on February 27, 2017
  73. Algebra (Answer Check)

    Did I do this right? Solve the following inequality. -5 > -5 - 3w (-5 + 5) > (-5 + 5) - 3w 0 > 0 - 3w (0 / 3w) > 0 (-3w / -3) 0 < w w > 0

    asked on February 5, 2017
  74. Algebra (Answer Check)

    Am I correct? Solve the following inequality. f + 2 1/2 < -2 f (2 1/2 - 2 1/2) < (-2 - 2 1/2) f < -4 1/2

    asked on February 5, 2017
  75. Biology

    2 g of glycine (C2H5NO2) are dissolved in water to a total volume of 3 L. What is the concentration of the glycine solution in M? Round answers to two significant figures.

    asked on January 16, 2017
  76. Business

    If a new college graduate wants a car costing $21,000, how much must be saved annually over the next four years if the funds earn 5%?

    asked on December 14, 2016
  77. Business

    You purchase a bond for $875. It pays $60 a year (semiannual coupon is 3%), &the bond matures after 10 years. What is the yield to maturity?

    asked on December 14, 2016
  78. Business

    You purchase a bond for $875. It pays $60 a year (semiannual coupon is 3%), &the bond matures after 10 years. What is the yield to maturity?

    asked on December 12, 2016
  79. Physics

    A 23-kg child is sliding on an icy surface toward her mother at 3.0 m/s. Her 70-kg mother starts toward her at 2.0 m/s, intending to catch her. What percentage of the original kinetic energy is convertible? I calculated the convertible kinetic energy as

    asked on October 25, 2016
  80. physics

    A cannon fires a shell straight upward; 1.7 s after it is launched, the shell is moving upward with a speed of 19 m/s. Assuming air resistance is negligible, find the speed (magnitude of velocity) of the shell at launch and 5.4 s after the launch.

    asked on October 17, 2016
  81. physics

    You toss a tennis ball straight upward. At the moment it leaves your hand it is at a height of 1.5 m above the ground, and it is moving at a speed of 6.4 m/s.When the tennis ball is at a height of 2.2 m above the ground, what is its speed?

    asked on October 17, 2016
  82. mathematics

    In a class of 40 students;30 offer science; 20 offer mathematics and 8 neither. a.illustrate this information on a venn diagram . Many students offer both subjects. many students offer exactly one subject

    asked on October 16, 2016
  83. math

    what is the recursive formula when given the explicit formula for the geometric sequence

    asked on June 24, 2016
  84. Social Studies

    1. A two thirds majority vote of both houses will pass a bill over to the governor's veto. A. True B. False 2. If the house makes changes, the bill goes back to the original house for a veto. A. True B. False 3. Which action does not occur in a committee?

    asked on June 1, 2016
  85. Math

    Kairi and Jacob have $80 for movies and dinner. If the movies cost $12 per person and $10 for a large popcorn and two pops, how much money do they have left for dinner? What equation would be best to use for this problem?

    asked on April 27, 2016
  86. Help Me On Math Please, If Anyone Is Available

    A multiple choice test has 5 questions each with 5 possible answers. Find the probability of answering all the questions correctly. A. 1/3,125 B. 1/25 C. 1/625 D. 1/125 I'm on a test, and this is the only one I'm stuck on.

    asked on February 23, 2016
  87. Physics

    A boy on a swing reaches a maximum height of 3.2 m and a minimum height of .55 m. What is the speed of the boy at the lowest point if the boy has a mass of 34 kg? v(final)=?

    asked on January 28, 2016
  88. Physics

    A soccer ball is kicked with 26.5n and accelerates at 6.5 m/s 2 to the right. What is the mass of the ball?

    asked on January 1, 2016
  89. Spanish/History

    Which empire was the largest in both Americas before the arrival of the Europeans? A. Inca B. Aztec C. Maya D. Cherokee I'm not sure if A or D but I think it is one of the two. Can anyone help me?????

    asked on December 3, 2015
  90. Physics

    A boat travels at 8m/sec and heads straight across a river 240m wide. The river flows at 4m/sec. What is the boats resultant speed with respect to the riverbank

    asked on October 26, 2015
  91. 7th Grade Maths

    If Betty can jog 1500 metres in 10 minutes, how long will it take her to jog 10 Kilometres? PLEASE HELP ME IN THIS QUESTION I NEED IT HELP MEEEEEE!

    asked on October 14, 2015
  92. Maths

    If Betty can job 1500 meters in 10 minutes, how long will it take her to jog 10 Kilometres? PLEASE HELP MEEEEEEE!!!

    asked on October 14, 2015

    A placekicker is about to kick a field goal. The ball is 20.1 m from the goalpost. The ball is kicked with an initial velocity of 18.7 m/s at an angle θ above the ground. Between what two angles, θ1 and θ2, will the ball clear the 3.12-m-high crossbar?

    asked on September 30, 2015
  94. Math

    How do I identify the property used in a number sentence?

    asked on September 3, 2015
  95. math

    Do the following lines intersect? If yes, show the the point of intersection, if any. 5x+8y=-5 -x-1.6y=14 Im stuck. Please help! Thanks

    asked on July 12, 2015
  96. Law

    There are two types of miscarriage of justice and after 2003, there was emphasis the conviction of guilty.

    asked on June 10, 2015
  97. Math Help

    Hi! I need help with these two questions. Thanks! 1.) Look for the first four terms for the following sequence below. an=n(n^2-6) 2.) For this question, remember that your answer has to begin with the second term of the following sequence. Look for the

    asked on April 29, 2015
  98. Chemistry

    A single titration was performed which required 12.60 mL of 0.100 M Na2S2O3. The density of the original, undiluted unknown bleach was 1.040 g/mL. Calculate the number of moles of ClO- in the sample titrated.

    asked on March 8, 2015
  99. Language Arts: ESSAY IDEAS?!

    So I already have 3 ideas in my head to write a compare-and-contrast essay about, but I can't choose! Here are my options: 1) Books and Movies 2) iPhones and Androids 3) Philippines and the United States. Please give me feedback on what I should do, or

    asked on February 26, 2015
  100. Math Help!!

    When the owner of a gas station sets the price of 1 gallon of unleaded gasoline at 2$, he can seek approximately 20,000 gallons per day. When he sets the price of gas at 5$ per gallon, he can sell approximately 14,000 gallons per day. Let G(x) denote the

    asked on January 28, 2015


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