Caroline

Most popular questions and responses by Caroline
  1. ALGEBRA! URGENT.

    1. What data are represented by the stem-and-leaf plot below? 3 | 7 8 9 4 | 1 3 7 5 | 2 4 Key: 4 | 1 means 41 a. 37, 38, 39, 41, 43, 47, 52, 54 b. 73, 83, 93, 14, 34, 74, 25, 45 c. 7, 8, 9, 1, 3, 7, 2, 4 d. 37, 38, 39, 14, 34, 74, 25, 45 2. Find the mode

    asked on March 5, 2014
  2. Math Help? Check my answers.

    1. What data are represented by the stem-and-leaf plot below? 3 | 7 8 9 4 | 1 3 7 5 | 2 4 Key: 4 | 1 means 41 a. 37, 38, 39, 41, 43, 47, 52, 54 b. 73, 83, 93, 14, 34, 74, 25, 45 c. 7, 8, 9, 1, 3, 7, 2, 4 d. 37, 38, 39, 14, 34, 74, 25, 45 2. Find the mode

    asked on March 5, 2014
  3. Chemistry

    At 19.0°C, what is the fraction of collisions with energy equal to or greater than an activation energy of 151.0 kJ/mol? I got 1.06 which wasn't right

    asked on March 4, 2015
  4. please help! physics

    A 1200 kg car is moving at 95 km/h when the driver notices a deer down the road. He immediately moves his foot toward the brake pedal, taking only 0.50 seconds before the car starts slowing down. The brakes cause a net force of 2400 N (backwards) on the

    asked on October 21, 2014
  5. Chemistry

    What is the value of the equilibrium constant at 25°C for the reaction between each of the following? (a) Sn(s) and Pb2+(aq) (b) Cr(s) and Cu2+(aq) I have been unable to get either and have spent the last two hours attempting it. I have been using the

    asked on May 4, 2015
  6. TOURISM

    PROJECT INFLUENCE OF GLOBAL EVENTS ON TOURISM

    asked on February 22, 2016
  7. Art

    When creating a collection based on a message, an artist should consider all of the following except A. the audience the collection will the presented to B. the subject matter they most prefer using as a reference C. the dollar amount they wish to sell it

    asked on January 15, 2016
  8. Pre-Calculus

    Driving down Bald Mountain in Wyoming, Bob dean finds that he descends 1600 feet in elevation by the time he is 2.5 miles (horizontally) away from the high point on the mountain road. Find the slope of his descent (Hint: 1 mile = 5280 feet) After

    asked on January 10, 2013
  9. Chemistry

    The coinage metals -- copper, silver, and gold -- crystallize in a cubic closest packed structure. Use the density of gold (19.3 g/cm3) and its molar mass (197 g/mol) to calculate an approximate atomic radius for gold. Work So Far:

    asked on February 3, 2015
  10. Algebra 1

    Can you please check my work and help me with the parts that I don't understand? For each event, choose the most appropriate term and solve the problem. 1. In a sweepstakes with nine hundred entries, the first winner selected receives the grand prize, the

    asked on April 27, 2014
  11. trig

    An airplane pilot wishes to maintain a true course in the direction 250° with a ground speed of 400 mi/hr when the wind is blowing directly north at 60 mi/hr. Approximate the required airspeed and compass heading

    asked on April 1, 2013
  12. Chemistry

    A professor wanted to set up a similar experiment as the one you performed in lab. The professor wanted to use Al(OH)3 in place of Ca(OH)2. Calculate how many mL of saturated Al(OH)3 solution it would take to titrate against 12.00mL of 0.0542M HCl

    asked on April 8, 2015
  13. Algebra 1

    Will you please check my work? :) Choose ALL (if any) applicable terms for the events described, then calculate the probability of the events. Jason has a cube with colored sides: red, orange, yellow, green, blue and purple. 1. Rolling a red or a primary

    asked on April 27, 2014
  14. physics

    One end of a light spring with force constant 300 N/m is attached to a vertical wall. A light string is tied to the other end of the horizontal spring. The string changes from horizontal to vertical as it passes over a solid pulley of diameter 6.00 cm. The

    asked on November 30, 2009
  15. chemistry

    Approximately how many joules of heat are needed to raise the temperature of a 4.0-gram sample of water to 8.0C? that is all of the information that was provided

    asked on December 1, 2015
  16. language arts

    What is the preposition in this sentence? After the movie, we will grab a pizza to take home. after will grab to I think C

    asked on May 18, 2017
  17. Math Homework: Check Answers

    1. Suppose you earned 8t - 3 dollars on Monday and 6t + 5 dollars on Tuesday. What were you total earnings? Simplify your answer. A) 2t + 2 B) 2t - 8 C) 14t + 2 D) 14t - 8 Answer: A 2. f^2 • f^4 A) (2f)^8 B) (2f)^6 C) f^8 D) f^6 Answer: D 3. 100^12/100^8

    asked on May 27, 2014
  18. Algebra 1

    Can you please check my work? A city planning committee surveys 100 people waiting at a bus stop about the expansion of the public transportation system. Is this an example of a: random sample, systematic sample, self-selected sample, convenience sample,

    asked on April 27, 2014
  19. calculus

    The given curve is rotated about the y-axis. Find the area of the resulting surface. y = 1/4x^2 − 1/2ln x, 4 ≤ x ≤ 5 The answer is supposed to be 64/3*pi

    asked on October 8, 2011
  20. science/math/physics

    A shopper pushes a cart 41 m south down one aisle and then turns 90.0° west and moves 28 m. He then makes another 90.0° turn and moves 14 m. (a) What is the largest possible displacement of the shopper? ____m ___° counterclockwise from west

    asked on October 3, 2012
  21. language arts

    Jane's artwork is displayed alongside other contemporary art pieces at the modern art museum. which word that can be used to describe Jane's artwork has the most positive connotation? weird eccentric original odd

    asked on May 18, 2017
  22. language arts

    What is the appositive in this sentence? My father, David, goes to the golf course on Sundays. David father golf course Sundays

    asked on May 18, 2017
  23. Calculus

    A lighthouse is built on an exposed reef, 5 miles off-shore. The shoreline is perfectly straight, and a town is located 9 miles downshore from the point on the shoreline nearest the lighthouse. The lighthouse keeper needs to go from the lighthouse to the

    asked on November 8, 2016
  24. chemistry!

    how many moles of product are formed in the reaction? 2Al(s),3Cl2(g)--->2AlCl3(s) please help me!! thank you so much

    asked on March 31, 2010
  25. Math

    I lost my paper for the Math Riddle Pizazz page 167 about solving systems of equations and I no longer have the problems. (It is the "did you hear about the farmer who gave birdseed to his cows..." page) What are the math problems for it?

    asked on February 28, 2011
  26. PLEASE HELP. physics

    A .25 kg skeet is fired at an angle of 30 degrees to the horizon with a speed of 30 m/s, When it reaches the maximum height, a 15 g pellet hits it from below. Before the collision, the pellet was traveling vertically upward at a speed of 200 m/s Embedded

    asked on November 21, 2010
  27. math, Please Helppp!!!!!!!! Lost paper!

    I lost my paper for the Math Riddle Pizazz page 167 about solving systems of equations and I no longer have the problems. (It is the "did you hear about the farmer who fed his cows birdseed.." page) What are the math problems for it?!?

    asked on March 1, 2011
  28. math

    The result of reflecting across the line y=-x and then rotating 330 degrees counterclockwise around the origin is an isometry T. Represent T by a 2x2 matrix. Could someone explain how to do this?

    asked on November 21, 2010
  29. Honors Physics

    A canoeist is trying to paddle upstream in a river that has a velocity of 6.1 m/s. If he can paddle his canoe at a velocity of 6.2 m/s, will he make any headway? What will his velocity relative to the shore be?

    asked on December 18, 2014
  30. Math

    1. what is the solution o 204 - (-36)? A 240** B - 240 C 168 D -168 2. what is the solution of 87 + (-396)? A 183 B -183 ** C 9 D -9 3. Evaluate: -12 x 3 =? A 36 B -36** C 4 D -4 4. Evaluate: -20 ÷ -10 =? A 200 B -200 C 2 **8 D -2 5. Select all the

    asked on September 12, 2016
  31. physics

    If you stand on a bathroom scale, the spring inside the scale compresses 0.50 mm, and it tells you your weight is 680 N. Now if you jump on the scale from a height of 1.4 m, what does the scale read at its peak?

    asked on March 2, 2012
  32. chemistry

    A mixture contained zinc sulfide, ZnS, and lead sulfide, PbS. A sample of the mixture weighing 6.12 g was reacted with an excess of hydrochloric acid. The reactions are given below. ZnS(s) + 2 HCl(aq) → ZnCl2(aq) + H2S(g) PbS(s) + 2 HCl(aq) → PbCl2(aq)

    asked on October 24, 2010
  33. MAth

    Mrs.Williams is going to purchase a plastic cover for her outdoor fish food pond.The area of the fish pond is 25m2.However ,she must purchase a cover that is 12% more than the pond area in order to cover the entire edges of the pond.The plastic cover costs

    asked on January 31, 2019
  34. PHY 101

    An archer aims an arrow precisely horizontally over a large, flat field and lets it fly. At the same instant, the archer's watchband breaks and the watch falls to the ground. Does the watch hit the ground before, at the same times as, or after the arrow

    asked on February 5, 2013
  35. algebra 1

    express the area of each triangle as a monomial. 10. height-2n^2 base- 5n^3 11. height- 4ab^5 base- 3a^4b

    asked on February 5, 2008
  36. algebra 1

    Evaluate: 30 - m/6 for m = 30. a. 25 b. 0 c. 6 d. 1 i chose a. 25? please verify. thanks

    asked on May 21, 2016
  37. physics

    I am having a really hard time figuring this question out, would somebody be able to help me? Imagine a giant dry-cleaner's bag full of air at a temperature of -35∘C floating like a balloon with a string hanging from it 12km above the ground. Estimate

    asked on August 5, 2013
  38. chem

    Heating an ore of antimony (Sb2S3) in the presence of iron gives the element antimony and iron(II) sulfide. Sb2S3(s) + 3 Fe(s) 2 Sb(s) + 3 FeS(s) When 10.9 g Sb2S3 reacts with an excess of Fe, 9.84 g Sb is produced. What is the percent yield of this

    asked on March 31, 2010
  39. Physics

    A daredevil is shot out of a cannon at 45.0° to the horizontal with an initial speed of 28.0 m/s. A net is positioned a horizontal distance of 51.0 m from the cannon. At what height above the cannon should the net be placed in order to catch the

    asked on September 30, 2010
  40. Chemistry

    Hydrogen sulfide decomposes according to the following reaction, for which Kc = 9.30 10-8 at 700°C. 2 H2S(g) 2 H2(g) + S2(g) If 0.46 mol H2S is placed in a 4.6 L container, what is the equilibrium concentration of H2(g) at 700°C? So I thought that by

    asked on March 9, 2015
  41. Physics

    A force compresses a bone by 0.10mm. A second bone has the same length but twice the cross-sectional area as the first. By how much would the same force compress the bone?

    asked on December 9, 2012
  42. Calculus

    Find the total mass of the triangular region with coordinates (-1,0),(0,4),and (1,0). All lengths are in centimeters, and the density of the region is (x)=5+x grams/c^m2. I know that to get the total mass i have to do density* lenght and ingegrate, but I

    asked on October 26, 2011
  43. chemistry

    Hydrogen cyanide is a highly poisonous, volatile liquid. It can be prepared by the following reaction. CH4(g) + NH3(g) → HCN(g) + 3 H2(g) What is the heat of reaction at constant pressure? Use the following thermochemical equations. N2(g) + 3 H2(g) → 2

    asked on October 29, 2010
  44. chemistry

    Raoul Pictet, the Swiss physicist who first liquefied oxygen, attempted to liquefy hydrogen. He heated potassium formate, KCHO2, with KOH in a closed 2.50 L vessel. KCHO2(s) + KOH(s) → K2CO3(s) + H2(g) If 50.1 g of potassium formate reacts in a 2.50-L

    asked on October 24, 2010
  45. chemistry

    Hydrogen cyanide, HCN, can be made by a two-step process. First, ammonia is reacted with O2 to give nitric oxide, NO. 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) Then nitric oxide is reacted with methane, CH4. 2 NO(g) + 2 CH4(g) → 2 HCN(g) + 2 H2O(g) +

    asked on September 26, 2010
  46. Chemistry

    Approximately how many joules of heat are needed to raise the temperature of a 4.0-gram sample of water to 8.0C?

    asked on November 30, 2015
  47. Pre-Calculus

    Could someone check my answers? 25. 32^(2x-3)=2 Answer- x= 8/5 26. 9^(2x+1)=81 Answer- x= 1/2 27. 1/4=2^3x Answer- x= -2/3 28. 1/27=3^2x Answer- x= -3/2 29. 9^x=27 Answer- x= 3/2 30. 32^x=4 Answer- x= 2/5 31. 27^(x+1)=9 Answer- x= 1/2 32. 125^(x-2)=25

    asked on May 1, 2013
  48. chemistry

    Ethylene glycol, HOCH2CH2OH, is used as antifreeze. It is produced from ethylene oxide, C2H4O, by the following reaction. C2H4O(g) + H2O(l) → HOCH2CH2OH(l) Use Hess's law to obtain the enthalpy change for this reaction from the following enthalpy

    asked on October 29, 2010
  49. Math

    Please help with this problem! What is the positive three-digit integer that is four times the product of its digits?

    asked on April 7, 2009
  50. Physics

    a 50 kg ice skater is skating on a frozen lake where the ice has a coefficient of friction of .08. How much force is required to push her across the ice at a constant velocity?

    asked on October 5, 2016
  51. Calculus

    A steady wind blows a kite due west. The kite's height above ground from horizontal position x = 0 to x = 60 ft is given by y = 150 − 1/40(x − 50)^2. Find the distance traveled by the kite. (Round your answer to one decimal place.) THe answer is

    asked on October 7, 2011
  52. Science

    1. What stretches over most of the Arabian Peninsula ? a. Fertile farmland b.forest c. Desert d. Lakes 2. Camels were used by Bedouin’s because they require very little a. Food b. Water c. Sunlight d. Sleep 3. A search of waterfront in the desert is

    asked on May 21, 2018
  53. Chemistry

    1. Imagine you have a saturated solution of Ca(OH)2, at equilibrium, that has some undissolved Ca(OH)2 precipitated on the bottom of the test tube. If you add an additional scoop of Ca(OH)2 to the solution will concentration of [OH-] in the solution

    asked on March 16, 2015
  54. physics

    If you drop a stone into a well that is d = 122.0 m deep, as illustrated in the figure below, how soon after you drop the stone will you hear it hit the bottom of the well?

    asked on March 28, 2012
  55. Math

    Please help with this problem! Brandon wishes to fence in a rectangular area of his lawn for his rabbit. If the measure, in feet, of each side of the enclosure is a positive integer and the perimeter of the enclosure is 70 feet, what is positive difference

    asked on April 7, 2009
  56. physics

    A hollow cylinder, a solid cylinder, a hollow sphere, and a solid sphere roll down a ramp without slipping, starting from rest. The ramp is 0.25 m high. All the objects have radius 0.035. What are their final speeds? Please show what equation you used and

    asked on November 5, 2015
  57. chemistry

    Calculate the heat released when 4.260 L Cl2 with a density of 2.46 g/L at 25°C reacts with an excess of sodium metal to form solid sodium chloride at 25°C.

    asked on October 29, 2010
  58. chemistry

    Carbon disulfide is a colorless liquid. When pure, it is nearly odorless, but the commercial product smells vile. Carbon disulfide is used in the manufacture of rayon and cellophane. The liquid burns as follows. CS2(l) + 3 O2(g) → CO2(g) + 2 SO2(g)

    asked on October 29, 2010
  59. Probablility

    There are 4 cardio stations and six weight lifting stations at the gym. You decide to chose 4 stations randomly for today's workout. Whats the probability that you choose all weight lifting or all cardio?

    asked on November 27, 2016
  60. physics!

    When empty, a particular helicopter of mass 3770 kg can accelerate straight upward at a maximum acceleration of 1.34 m/s2. A careless crewman overloads the helicopter so that it is just unable to lift off. What is the mass of the cargo?

    asked on October 31, 2010
  61. Physics

    You push a skateboard so that it rolls down the road at a speed of 0.700 m/s. You run after the skateboard at a speed of 3.90 m/s and while still behind the skateboard you jump off the ground at an angle of 28.0° above the horizontal hoping to land on the

    asked on September 25, 2016
  62. Chemistry

    Calculate the volume at which pH = pKa if 30.00mL of weak acid with a concentration of 0.0955M is titrated against a strong base with a concentration of 0.1233M.

    asked on March 11, 2015
  63. ela

    is there another way of saying better understand? the snetence im trying to write is "imagery can also help the reader to better understand the poem thus the reader is able to ...(is it appropriate to write better understand again here?)"

    asked on February 2, 2015
  64. Spanish 2

    I turned these in and my teacher said all my answers were wrong. I'm so confused because when I go through my chapter it says differently.Can someone please help?! A. Supply the correct form of the adjective. 1. rojo Hay una pluma _____ encima de la mesa.

    asked on January 3, 2013
  65. Science Help!

    A light beam has a frequency of 5 x 1015 Hz. What is its wavelength?

    asked on November 13, 2012
  66. chemistry

    How many grams of oxygen gas are required to produce 7.46 kJ of heat when hydrogen gas burns at constant pressure to produce gaseous water? 2 H2(g) + O2(g) → 2 H2O(g) ΔH = −484 kJ Liquid water has a heat of vaporization of 44.0 kJ per mole at 25°C.

    asked on October 29, 2010
  67. chemistry

    Hydrogen cyanide, HCN, can be made by a two-step process. First, ammonia is reacted with O2 to give nitric oxide, NO. 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) Then nitric oxide is reacted with methane, CH4. 2 NO(g) + 2 CH4(g) → 2 HCN(g) + 2 H2O(g) +

    asked on September 25, 2010
  68. Math

    Leah spent 5/6 of an hour doing homework on Monday on Tuesday she spent 3/4 of an hour and on Wednesday she did it in 5/8 of an hour How much time did she spend doing her honework on Minday Tuesday and wednesday I know how to concert 5/6 and 3/4 hour but

    asked on November 29, 2016
  69. physics

    A square loop of wire of side 2.8 cm carries 3.0 A of current. A uniform magnetic field of magnitude 0.67 T makes an angle of 43° with the plane of the loop. (a) What is the magnitude of the torque on the loop? (b) What is the net magnetic force on the

    asked on May 13, 2014
  70. physics

    What is the average linear speed of the Earth about the Sun? (The distance from the Sun to the Earth is 1.50 1011 meters. The orbital period around the Sun is 365.3 days.)

    asked on May 12, 2014
  71. Math Polygons

    I am a closed shape made of 6 line segments. I have 2 angles less than a right angle and no right angles. What shape am I? Draw an example in the workspace.

    asked on March 19, 2014
  72. World Geography

    Cultures often develop along with science and ____________.

    asked on April 23, 2013
  73. Physics

    Nicole throws a ball straight up.Chad watches the ball from a window 5meters above the point where Nicole released it . The ball passes Chad on the on the way up, and it has a speed of 10m/s as it passes him on the way back down.Determine how fast Nicole

    asked on April 4, 2013
  74. physics

    A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the

    asked on March 28, 2012
  75. Chemistry

    When dilute nitric acid was added to a solution of one of the following chemicals, a gas was evolved. This gas turned a drop of limewater, Ca(OH)2, cloudy, due to the formation of a white precipitate. The chemical was.... a. the household ammonia NH3 b.

    asked on April 12, 2009
  76. Life orientation

    Evaluate the physical,social and economic consequences of this crime to the offender

    asked on May 1, 2016
  77. Math ratio

    Melanie mixes water with plant fertilizer in a proportional relationship that can be represented by the equation w=3p, where w is the number of quarts of water and p is the number of tablespoons of plant fertilizer. To keep this suggested ratio,should

    asked on April 10, 2016
  78. Math

    1.Male and female high school students reported how many hours they worked each week in summer jobs. The data is represented in the following box plots: two box plots shown. The top one is labeled Males. Minimum at 1, Q1 at 3, median at 10.5, Q3 at 14,

    asked on February 22, 2016
  79. Physics

    You have two tuning forks. One is a known frequency of 200 Hz. The second for his plate, there is a big frequency of five beats per second. What a piece of gum is placed on the second fork, the frequency increases three beats per second. What is the

    asked on January 14, 2016
  80. Chemistry

    Instead of using ratios for back titrations we can also use molarities if our solutions are standardized. A 0.188g sample of antacid containing an unknown amount of triprotic base Al(OH)3 was reacted with 25.0mL of 0.101M HCl. The resulting solution was

    asked on April 6, 2015
  81. Chemistry

    A gas is allowed to expand at constant temperature from 4.274L to 6.877L against an external pressure of 1.977 atm. If at the same time the gas absorbs 773 J of heat from the surroundings, what is Delta E for this process? (Note: Pay attention to units; 1

    asked on December 14, 2014
  82. geometry

    if ac=7x+5 and bd=14x-2,what is the value for ac?

    asked on June 29, 2011
  83. physics. please help!

    A 2.5 kg block is pulled to the right by a horizontal string. The coefficient of static friction between the block and the floor is 0.30 and the coefficient of kinetic friction is 0.20. What value of force applied by the string will start the block moving?

    asked on October 31, 2010
  84. chemistry

    At what temperature does the rms speed of Cl2 molecules equal 401 m/s?

    asked on October 24, 2010
  85. chemistry

    Aluminum metal reacts with iron(III) oxide to produce aluminum oxide and iron metal. (a) How many moles of Fe2O3 are required to completely react with 55 g Al? mol (b) How many moles of Fe are produced by the reaction of 3.00 mol Fe2O3 and 97.7 g Al? mol

    asked on September 25, 2010
  86. algebra

    32x+8=? Which algebric expression has the same value, explain method, please.. 4(x+2) 8(4x+1) 4(8x+1) 8(4x+8)

    asked on January 12, 2010
  87. Math

    How can you check the answer to a decimal multiplication problem

    asked on December 3, 2017
  88. math

    An account earns annual simple interest. Find the balance of the account. $2000 at 9% for 6 months = $

    asked on May 25, 2016
  89. Math / Finance

    You are planning to save for retirement over the next 15 years. To do this, you will invest $1,100 a month in a stock account and $500 a month in a bond account. The return on the stock account is expected to be 7%, and the bond account will pay 4%. When

    asked on September 20, 2015
  90. life orientation

    identify three study fields/career paths in order of preference and provide two reasons for each choice

    asked on March 5, 2014
  91. Molecular cell Biology

    The following chemicals have the indicated formula weights:Sucrose-342.3,Potassium dihydrogen phosphate(KH2PO40-136.09,Tris -121.14.You also have the following solutions made:20%SDS,5M NaCl,500mM EDTA.You have a 40%glycerol solution and 10X TBE.List the

    asked on January 18, 2014
  92. Math

    Susan owns a chocolate store. She sells her chocolate by the gram and needs to compare the weights of two chocolate batches. She randomly selects 100 pieces from each batch. The distrubition of both samples are normal. Batch 1 - (Mean Weight) 56 grams

    asked on March 30, 2013
  93. MAth

    5(2x - 10)/2 + 14 = 19 Tried working this, need help-please 5x-50/2 or 10x - 50/2

    asked on April 16, 2011
  94. MAth

    50=3(s = 16)- 2(s - 2) I tried 3s+2s - 48-4 = 50 5s - 44 -44 = 50 - 44 am I on the right track ???

    asked on April 16, 2011
  95. MAth

    a concrete area measures 20ft on each side. the concrete slab will be 8 inches deep. how many cubic feet of concrete will be needed? my set up is 20 x 20 + 32 ????

    asked on April 15, 2011
  96. MAth

    jerry is 6 more than 3 times as old as his son.together they are 46 yrs old. how old is jerry. ans -36 I set up problem 6+3x=46 to start?

    asked on April 15, 2011
  97. MAth

    I set this problem up as 500-2X=3,400 Marys monthly salary is $500 less than twice her daughter's salary. Together they earn $3,400 each month. How much is the daughter's salary. ans-1,300 500-500-2x=3,400-500 2x=3,100 2x/2=3,100/2 what am I missing

    asked on April 15, 2011
  98. chemistry

    How much heat is released when a mixture containing 12.6 g CS2 and 12.6 g Cl2 reacts by the following equation? CS2(g) + 3 Cl2(g) → S2Cl2(g) + CCl4(g) ΔH° = −230. kJ

    asked on October 29, 2010
  99. chemistry

    A 19.5-g sample of a metal was heated to 61.67°C. When the metal was placed into 26.5 g of water in a calorimeter, the temperature of the water increased from 25.00°C to 30.00°C. What is the specific heat of the metal?

    asked on October 29, 2010
  100. physics

    A water slide can be thought of as being frictionless. Let's say a slider starts from rest and goes down a slide that is 30 m long and is set at a 25 degree incline. a) Determine the speed of the slider at the bottom of the slide. b) Explain why you don't

    asked on October 26, 2010

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