1. Biology

    Which of the following are three common characteristics of echinoderms? A tube feet, circulatory system, body symmetry B marine-dwellers, endoskeletons, water-vascular system C bilateral symmetry, ossicles, respiratory system D mouths, protosomes, body

    asked by Ali on June 14, 2012
  2. phy

    Calculate the density for a rectangular block using the following measurements. Length: 2.70 cm, Width: 1.10 cm, Height: 9.09 cm, Mass: 72.17 g. Round your answer for density to 2 decimal places. Include the correct unit for density. Show your work

    asked by irtaza on May 18, 2011
  3. Mechanics

    During a soccer game a ball (of mass 0.425 kg), which is initially at rest, is kicked by one of the players. The ball moves off at a speed of 26 m/s. Given that the impact lasted for 8.0 ms, what was the average force exerted on the ball? Show the solution

    asked by Aries on September 19, 2013
  4. Stastics

    In a study of proctored and non-proctored tests in an online course, researches obtained the data below: Group 1 (Proctored): 𝑛 = 30, 𝑥̅= 74.30, 𝑠 = 12.87 Group 2 (Non-proctored): 𝑛 = 32, 𝑥̅= 80.62, 𝑠 = 22.09 Use of 0.05 significance

    asked by Mariana on April 26, 2016
  5. Stastics

    In a study of proctored and non-proctored tests in an online course, researches obtained the data below: Group 1 (Proctored): 𝑛 = 30, 𝑥̅= 74.30, 𝑠 = 12.87 Group 2 (Non-proctored): 𝑛 = 32, 𝑥̅= 80.62, 𝑠 = 22.09 Use of 0.05 significance

    asked by Mariana on April 26, 2016
  6. Physics

    How much heat energy is needed to change 0.25kg of water at 100°C to steam at 100°C? Show your work. Please don't give me the answer, I just need help figuring out how to find the answer. Thanks!

    asked by Mark on December 7, 2016
  7. algebra

    the second finished teepee is 12 feet tall and use PVC pipes that are 13 feet long. what is the distance across the bottom of the teepee? show your work and state your answer as a complete sentence.

    asked by kay on January 12, 2012
  8. Chemistry

    The solubility product constant of Calcium hydroxide is 6.5 * 10^-6 . If 0.10 mo of sodium hydroxide is added to 1 L of 0.0001 M Ca(OH)2, what is the final concentration of the calcium ion? SHOW your work. Again, I have no idea where to start

    asked by Adam on May 17, 2016
  9. algebra

    The total charge for a taxi ride includes an initial fee of $2.75 plus $2.25 for every 1/2 mile traveled. Joe took a taxi, and the ride cost him $56.75. How would this be put in a equation? Show your work.

    asked by syram on March 20, 2013
  10. geometry

    A person riding the original Ferris Wheel is traveling at a speed of 0.495 mph. If one revolution takes 9 minutes, what is the diameter of the Ferris Wheel? Show your work.

    asked by Brittany on March 19, 2014
  11. Algebra

    Evaluate the logarithmic function for three values of x between zero and one, three values of x greater than 1, and at x=1. Show your work. Use the resulting ordered pairs to plot the graph. State the domain and the range of the function. g(x) = ln x + 2

    asked by Zen on June 19, 2010
  12. Trig - Ambiguous Case of the Sine Law

    This is the question: In triangle LMN, angle LMN = 42 degrees, LN = 32mm, and LM = 42 mm. Calculate all possible measures of angle MLN to the nearest degree. Use the sine ratio and show your work.

    asked by Anonymous on February 10, 2019
  13. Physical Science

    Two carts ( a's mass = 4.5 kg and b's mass = 1.5 kg) are held against a strong compressed string. The carts are released simultaneously, and B moves off to the right wqith a speed of 2.0 m/s. What is A's initial velocity? Please show work.

    asked by Aubbie on September 21, 2011
  14. Physics

    Vincent decided to beat his friend's average velocity of 4 m/s. What is the shortest amount of time to beat his friend's recordin a displacent of 20 meters? *SHOW ALL WORK AND EXPLAIN THOROUGHLY*

    asked by Lynn on July 25, 2010
  15. Physics

    How much heat energy is needed to change 0.25kg of water at 100°C to steam at 100°C? Show your work. Please don't give me the answer, I just need help figuring out how to find the answer. Thanks!

    asked by Mark on December 7, 2016
  16. Chemistry

    The solubility of compound A in ethanol is 0.4 g per 100 mL at 0C and 5.0 g per 100 mL at 78C. What is the minimum amount of solvent needed to recrystallize an 8.0 g sample of compound A? How much would be lost in the recrystallization? Show your work.

    asked by david on September 20, 2012
  17. chemistry

    if 4.36g of a hydrate of the salt baCl2 is heated and in the process losses 0.6431g of mass, show all your work to calculate the amount of water X in the hydrate, BaCl2.XH2O

    asked by ujay on January 24, 2010
  18. PHYSICS

    A skier is gliding along at 2.0 m/s on horizontal, frictionless snow. He suddenly starts down a 10 ∘ incline. His speed at the bottom is 15 m/s . a).What is the length of the incline? b).How long does it take him to reach the bottom? (Please show work)

    asked by Meg on October 13, 2015
  19. physics

    A small dog is trained to jump straight up a distance of 1.2 m. How much kinetic energy does the 7.2-kg dog need to jump this high? (The acceleration due to gravity is 9.8 m/s2.) Show your work for credit.

    asked by sophia on February 5, 2017
  20. math solvng

    if a doctor prescribes 30 units of insulin in 500 ml to be administered over 2 hours, how many drops per minute should be administered if the set is calibrated to deliver 20 drops per ml? i don't know how to get it and i need to show work...

    asked by trixie on September 9, 2008
  21. chemistry

    It takes 445.76 J of heat to increase the temperature of a 50.0 g piece of metal from 20.0 °C to 65.0 °C. What is the specific heat capacity of the metal (assuming the phase doesn\'t change)? Also please show work

    asked by Allex on April 8, 2017
  22. chemistry

    If 4.36g of a hydrate of the salt baCl2 is heated and in the process losses 0.6431g of mass, show all your work to calculate the amount of water X in the hydrate, BaCl2.XH2O

    asked by ujay on January 24, 2010
  23. Physics

    Mike pulls a 4.5 kg sled across level snow with a force of 250 N along a rope that is 35.0° above the horizontal. If the sled moves a distance of 63.8 m, how much work does Mike do? please show steps/equation!

    asked by Zach G on January 23, 2012
  24. Math

    Round 0.575 to the nearest hundredth. Answer =0.60 Estimate 15.264-8.12 by first rounding each number to the nearest tenth. Answer 15.270-8.1= if these aren't correct show me how to work these ?

    asked by PLS Check on May 4, 2012
  25. Algebra

    The Johnsons framed a family picture to hang on the wall. The length of the frame is 22 inches and the width is 14 inches. Use the formula to find the perimeter of the frame. Show your work.

    asked by Peach on May 23, 2015
  26. Science

    17. A small dog is trained to jump straight up a distance of 1.1 m. How much kinetic energy does the 7.7-kg dog need to jump this high? (The acceleration due to gravity is 9.8 m/s2.) Show your work. (3 points)

    asked by Anonymous on March 10, 2011
  27. Algebra

    Can you please help me factor these expressions? Completely factor the following expressions. Please show work. 4x^2 - 8x - 12 + 6x 144 - 9p^2 5c^2 - 24cd - 5d^2 w^2 - 17w + 42 256z^2 - 4 - 192z^2 + 3 2a^2 c^3 - 14bc^3 + 32c^3 d^2 35g^2 + 6g - 9 3j^3 -

    asked by Kathy on February 20, 2014
  28. 4th grade math

    A park guide plans the swan boat rides for 40 people. Each boat can carry 6 people at a time. What is the best way to interpret the remainder of 40/6 in this situation so that everyone gets a ride? How do I show the work?

    asked by Ali on February 1, 2015
  29. Fermats Little Theorem

    Good morning, Just working through an example but ive gotten stuck and need some help. So find the least residue of 8^123 Mod 61 So 8^60 = 1 (mod 61) 8^120 = (8^60)^2 = 1^2 = 1 (mod 61) 123 = 2*60+3 So 8^2*60+3 = (8^60)^2 x 8^3 = 1^2 x 8^3 = 1 x 512 = 512

    asked by Mat on October 15, 2016
  30. Algebra

    1)Solve by factoring:5x^2=4-19x answer=-4,1/5 2)Which quadratic equation has roots 7 and -2/3? answer=A A.2x^2-11x-21=0 B.3x^2-19x-14=0 C.3x^2+23x+14=0 D.2x^2+11x-21=0 3)To solve 4x^2-28x+49=25 by using the square root property,you would first rewrite the

    asked by Marissa on August 12, 2007
  31. physics

    A disk-shaped merry-go-round of radius 2.63 m and mass 155 kg rotates freely with an angular speed of 0.596 rev/s. A 59.4 kg person running tangential to the rim of the merry-go-round at 3.68 m/s jumps onto its rim and holds on. Before jumping on the

    asked by PHYChica on June 6, 2007
  32. Variable

    SOLVING EQUATIONS WITH THE VARIABLE ON BOTH SIDES Solve the equation. Then check your solution. 4x-9 = 7x+12 Just remember that one can add, subtract, multiply, divide, etc but whatever is done to one side must be done to the other side of an equation. 4x

    asked by seth on August 5, 2006
  33. algebra

    Part 1: Using the Library, web resources, and/or other materials, find the logarithmic formula that gives the pH of a substance. State what each variable in your equation represents. Find the pH of an acidic substance of your choice. Using this pH, show

    asked by stephanie on December 11, 2009
  34. algebra

    Part 1: Using the Library, web resources, and/or other materials, find the logarithmic formula that gives the pH of a substance. State what each variable in your equation represents. Find the pH of an acidic substance of your choice. Using this pH, show

    asked by steph on December 8, 2009
  35. Chemistry

    A student mixed 15.0 mL of a solution of 0.0200 M ferric chloride FeCl3, with 25.0 mL of water. Calculate the moles of iron ion, Fe +3 in the resulting solution. (I think this is a Dilution problem, but I wasn't really sure how to start it out. Any help

    asked by S on January 23, 2012
  36. college mathematics

    5. Given p is false, q is true, and r is false, find the truth value of the statement (~p~q)-->~r. Show step by step work.

    asked by cody on February 7, 2012
  37. math

    A skateboard is on sale for 85% of the regular price if it is regularly priced at $40, how much is the sale price show all of your work below

    asked by lee on February 7, 2013
  38. Physics

    What is the electric force between a +2 µC point charge and a –2 µC point charge if they are separated by a distance of 5.0 cm? Show your work. (µC = 1.0 × 10–6 C)

    asked by Staci on May 22, 2013
  39. Geometry

    The measures of the angles in a triangle are in the extended ratio 3:4:5. Find the measures of the angles. show work x =       m∠1 =      ° m∠2 =      ° m∠3 =      °

    asked by Carrie on February 1, 2016
  40. Geometry

    ABCD is a parallelogram. P is a point on AB such that AP:AB = 1:4. Q is a point on CD such that DQ:DC = 1:3. AQ and DP intersect at R. Find the ratio AR:RQ and the ratio AR:AQ. Show work.

    asked by Lucy on February 21, 2014
  41. URGENT!! 7th Grade Math Help Please!!

    2. Price of the iPad Mini: $329.00 Price of the iPad with a 15% discount. Show all of your work please!! [4 points]

    asked by CrazyGameWhizz on December 3, 2012
  42. algebra

    A rectangle has a width of 8 meters. The length is twice as long as the width. What is the length of the diagonal? Show your work

    asked by Alexius on December 1, 2012
  43. calculus

    form a polynomial with real coefficients have given degree and zeros. degree 5, zeros 9, -i; 8+i please show work

    asked by Jimmy-can someone please help on December 22, 2012
  44. chemistry

    How many grams of glacial acetic acid should be used to make 250 mL of 2.00 M acetic acid? Show all your work.

    asked by Lily on May 31, 2010
  45. chemistry

    How many grams of glacial acetic acid should be used to make 250 mL of 2.00 M acetic acid? Show all your work.

    asked by Lily on May 31, 2010
  46. algebra

    find the L.C.D of each of the following and groups of fractions and then express the fractions of each group in terms of the L.C.D of that group... please show work 1\2,3\4,11\16 2\3,1\8,5\12

    asked by Adelia on February 1, 2012
  47. math helpp

    8. Convert the scale to a unit rate. Show your work. Interpret the meaning of the unit rate.

    asked by tesj on January 16, 2013
  48. Maths

    Nth terms I have to find the first 5 terms in the nth sequence. please could someone show me how to work this out, using the example below so I can do the next set of questions. 10-2n

    asked by Sam on September 16, 2013
  49. Precalculus

    let the function g be defined by g(x)=1-5x if the domain of the function of g is {x-3 is less than or equal to x which is less than or equal to 2} what is the smallest value of the range show work please

    asked by Arielt on March 1, 2010
  50. chemistry

    jason needs to use 63.5 grams of alcohol that has a denisty of .818 g/ml. How many millilters of the alcohol would jason need?. show work please

    asked by alexis on September 17, 2012
  51. algebra

    The measurement of two angles of a triangle are 39 degrees and 70 degrees. Find the measurement of the third angle. Show your work

    asked by Alexius on December 1, 2012
  52. Pre-Calc

    Evaluate the expression without using a calculator(show work please)? (sin pi/4 cos pi/6 - sin pi/6 cos pi/4) the answer is 1/4(2-ã3)

    asked by John on March 23, 2012
  53. algebra

    The measurement of two angles of a triangle are 44 degrees and 56 degrees. Find the measurement of the third angle. Show your work

    asked by Alexius on December 1, 2012
  54. algebra

    The measurement of two angles of a triangle are 69 degrees and 34 degrees. Find the measurement of the third angle. Show your work

    asked by Alexius on December 1, 2012
  55. Math

    Find the derivative: y = square root of x(x+14). The square root is only on the x. Please show work and explain. I don't know how to do this. Thanks!

    asked by JJ on March 29, 2012
  56. chemistry

    consider the reaction 2HgCl2 + C2O4-2 ---> 2Cl2-1 + 2CO2 + Hg2Cl2 The initial rate of this reaction was determined for several concentrations of HgCl2 and C2O4-2 and the following rate data was obtained. TRIAL (1) [HgCl2](M)= .105 [C2O4-2](M)= .15 RATE=

    asked by unknown on March 25, 2007
  57. Physics

    In the figure below, m1 = 10.9 kg and m2 = 3.7 kg. The coefficient of static friction between m1 and the horizontal surface is 0.60, and the coefficient of kinetic friction is 0.30. (a) If the system is released from rest, what will its acceleration be?

    asked by Meagan on October 5, 2017
  58. math 11

    A pilot of a downed airplane fires the emergency flare into the sky. The path of the flare is modelled by the equation h=-0.096(d-25)^2 +60 where h is the height of the flare in meters when its horizontal distance from where it was propelled is d meters.

    asked by George on April 14, 2018
  59. more thermo

    For the following question I was able to find the heat transfer and the entropy but I am having trouble finding the work done. When i solved delta E = Qnet - Wnet I got Win = Wout but Im not sure that is correct. I think that i need to solve for the final

    asked by jody on June 18, 2007
  60. Normality headache

    I do not fully grasp the idea of Normality. What are the normality and the molarity of a sulfuric acid solution if 30mL of it are required to completely neutralize 24mL of 0.02N NaOH? (one of them, N or M, is never equation dependent because...??) HCl(aq)

    asked by Kizner (chem) on June 16, 2006
  61. business math

    The Consumer Electronics show reports that the HP Spectre laptop computer starts at $99.70 for a base configuration. The model displayed at its recent show costs $1,361, $124 more than the comparable 13-inch Apple MacBook Air. If Computers-R-Us buys the HP

    asked by jahnesha on July 20, 2014
  62. American Gov

    The major reason for the persistence of the American two-party system is what? A. there are naturally only two sides to the political disputes B. regional conflict C. its a single member district system of electing officeholders D. proportional

    asked by Tonya on July 11, 2011
  63. science

    brain central nervous system human being nerve tissue neurons Organize the parts of this body system in the CORRECT order according to the levels of organization in a multicellular organism, simplest to most complex..

    asked by Anonymous on November 6, 2014
  64. History of Old Europe

    Why did the system of feudalism arise during the Middle East? A. to develop an economic system B. to determine jobs within a city C. to defend the country from attacks D. to organize the household of noblemen my answer- A if its wrong, can you tell me

    asked by dddd47906 on September 22, 2014
  65. Science

    brain central nervous system human being nerve tissue neurons Organize the parts of this body system in the CORRECT order according to the levels of organization in a multicellular organism, simplest to most complex..

    asked by Anonymous on November 5, 2014
  66. Chemistry

    Given acidity constant,Ka of benzoic acid is 6.28 X 10^-5. pH of 0.15 molar solution of this acid is ? Here is my method: Benzoic acid is a weak acid,hence it dissociates very little. So: C6H5COOH---> C6H5COO- + H+ [H+] and [C6H5COO-] are yet to be

    asked by Meenaakshi on March 23, 2012
  67. physics

    A 2000-kg car rounds a circular turn of a radius 20m. if the radius flat and the coefficient of friction between tires and road is .70, how fast can the car go without skidding? centripetal force = frictional force m v^2/r= mg*mu solve for v. um i was

    asked by becky on January 2, 2007
  68. intermediate algebra

    Essay.Show all work. A gardener wants to create a rectangular garden with the length of 3x-2y ft. and the width of 3x-3y ft. What is an algebraic expression for the area of the garden.Be sure to multiply this out.Express in the simpliest correct

    asked by Lueshelle on April 11, 2012
  69. math

    Ron would like to have at least $150,000 saved to buy a condo. If he invests $50,000 in an account paying 6.19% interest compounded quarterly, will he reach his goal in 15 years? Show all work to justify your answer and include appropriate units.

    asked by craig on November 5, 2017
  70. Physics

    Assuming 100% of your energy can be converted to electrical power, and electricity costs $0.10 for 1 kilowatt-hour, how high should you climb to make one penny's worth of electricity? Show all work & units. I have 288.8 watts, and that's as far as I have

    asked by Amber on October 5, 2010
  71. math (stats)

    A biology professor gives a surprise quiz consist of a true/false question followed by a multiple choice question with four possible answers. If both questions are answered with random guesses, find the probability that both responses are correct. Please

    asked by juan777 on January 23, 2012
  72. English

    Need help with this assignment. Please and thanks. The first composition should be about making a decision. Since this will be a narrative piece of writing, chronological order will probably work best. The second composition will be about the American way

    asked by Nick on August 9, 2013
  73. Chemistry

    A student has 100.0 mL of an unknown solution of Vitamin C. She removes 1.00 mL of this solution, dilutes it to 50.0 mL, and titrates this second solution with an iodine solution that is 8.5 × 10-4 M. 6.60 mL of iodine solution is required to reach the

    asked by Shelley on March 12, 2012
  74. Algebra

    Use a graphing calculator or a computer to graph the system of inequalities. Give the coordinates of each vertex of the solution region. 5x-3y is greater than or equal to -7 x-2y is greater than or equal to 3 3x+y is greater than or equal to 9 x+5y is less

    asked by Emma on March 24, 2013
  75. Chemistry 1

    Sodium carbonate reacts with a solution of HCl solution with the evolution of gas (CO2) to yield a solution that is neutral. If 0.265 grams of sodium carbonate are required to neutralize 1.00 mL of HCl solution, what mass (in grams) of sodium carbonate

    asked by Kay on February 5, 2010
  76. Variation

    Please check my work, the answer I am suppose to get is 17.5, but instead I got 2.5. Solve the problem. 66. y varies jointly as a and b inversely as the square root of c, y=24 when a=6,b=4, and c=49. Find y when a=2, b=5, and c=16. -I got: y=kab/ sqrt of

    asked by Soly on October 12, 2007
  77. Math

    How would you work, and solve this problem? Christa is a waitress and collects her tips at the table. At the end of the shift she has 68 bills, all ones and fives. If the total value of her tips is 172, how many of each bill does she have?

    asked by Megan Brown on January 31, 2011
  78. Algebra

    please help me solve my homework with all the work involved. i have trouble paying attention in class so it's hard for me to do my homework. here are a few of the questions. I need to find out what the letters equal. 1.) 10(-4+y)=2y 2.)9(b-4)-7b=5(3b-2)

    asked by Kelly on August 30, 2012
  79. Physics

    How much water at 80.0C must be added to 200.g of water at 10.0C to give a final temperature of 36.0cc? I know the answer comes to 1.2x10^-1kg but I need to know how to solve the question... ie: the long work involved.

    asked by Dorrito on December 8, 2011
  80. Differential Calculus

    Hi pls help me i dunno what to do show me complete solution please please Thank you. a piece of wire 10ft. long is cut into two pieces , one piece is bent into the shape of a circle and the other into the shape of a square. How should the wire be cut so

    asked by Ella on March 29, 2015
  81. math

    1.A principal of $5000 was invested in a savings account for 4 years. If the interest earned for the period was $400, what was the interest rate? 2.¨C3(10x ¨C 3) + 10(3x ¨C 3) = x ¨C 7 3.Solve and graph the solution set.

    asked by stacy on February 2, 2007
  82. trig

    Hi I need to solve this question for x, where 0

    asked by Kayla on March 18, 2010
  83. Biochem

    Using stocks of 0.1 M KH2PO4 and 0.1 M K2HPO4 how much 0.1 M K2HPO4 is needed to prepare 20 mL of a buffer solution at pH 7.2. The pKa of phosphate is 6.82. I know to solve for the ratio using henderson hasselbach but im lots after that! 5.2=6.82+log(A/HA)

    asked by Ellen on September 19, 2016
  84. math

    solve the polynomial inequality and graph the solution set on a real number line. set in interval notation. x^3+2x^2-4x-8>0 I have been staring at this problem for the last 15 minutes because I just don't understand it, somebody please help me?

    asked by adrienne on March 26, 2013
  85. chm 2

    On the same type of problem as the previous one, it is now asking the pH of 1ml of NaOH plus 50ml water. If i solve for pOH taking .001ml / .051, i get the same number as before, can i just subtract the number from 14 to get pH of the basic solution? 12.29

    asked by Kyle on October 14, 2013
  86. Math

    how many solutions does the equation have -2(6x-4)= -12x A. one solution***** B. no solution C. an infinitive number of solutions D. impossible to determine Select all the equations that have one solution A. 4(2x+2)=8x+9**** B.3x+(-4)=6x-4****

    asked by Anonymous on January 14, 2016
  87. chemistry

    Consider a solution containing 0.47 M HOCl and 0.67 M NaOCl for the next two questions. The Ka for HOCl = 3.5E-8. What is the pH of this solution? Now calculate the pH of this solution after 0.15 mol of NaOH is added to 1.00 L of the solution. Assume that

    asked by anonymous on February 18, 2015
  88. Chemistry

    What is the normal concentration of an HNO3 solution if 412 mL of the solution is titrated by 147 mL of 2.03-N NaOH? What is the normal concentration of a Ba(OH)2 solution, given that 86.3 mL of the solution is titrated by 113.0 mL of 0.00715-N H3PO4?

    asked by Lauren on December 17, 2017
  89. chemistry

    A process is carried out at constant pressure. Given that ΔE is positive and ΔH is negative, Select one: A. the system absorbs heat and contracts during the process. B. the system absorbs heat and expands during the process. C. the system loses heat and

    asked by betty boop on November 14, 2016
  90. Math help please

    1. Solve for x. 4(x - b) = x b = 4/3x b = 3/4x x = 4/3b x = 3/4b 2. Solve for y, then find the value of y when given x = 2. 6x = 7 - 4y -12 7/4 19/4 24 I need help solving these. Can you please explain how to solve these problems?

    asked by Charlotte on October 2, 2013
  91. Algebra

    FIND THE GCF OF THE PRODUCT (3B+6)(2B-10) SOLVE... X^2=-6X x(x+6)= 0 x = -6 or 0 it would = 0 help me solve this problem.. solve for W: 2L+2W=38 please and thank you!

    asked by Tomika on June 26, 2007
  92. finance

    On June 26, 2004, Elaine purchased and placed into service a new computer system costing $8,000. The computer system was used 80 percent for business and 20 percent for personal use in both 2004 and 2005. Elaine claimed only regular MACRS depreciation. In

    asked by Elizabeth on July 2, 2011
  93. chem

    150 cm3 0.24 M naoh solution react with excess al(no3)3, calculate the mass of saodium aluminate produced. al(no3)3 + 4naoh -> naalo2 + 3 nano3 +2h20 i got 0.738g.. is my answer correct? if im wrong could u show me the calculation?

    asked by Yuni on September 16, 2011
  94. chemistry

    calculate the pH of a buffer solution containing 0.200M acetic acid, HC2H3O2, plus 0.150M sodium acetate. The dissociation constant for HC2H3O2 is 1.76 x 10-5 I don't think our instructor gave enough notes on these things Im kind of winging it from the

    asked by Monique on November 11, 2011
  95. conditional sentence

    1. If the sound system hadn't failed,last night's show would have been better a. this is a correct sentence using the 1st conditional form b. this is correct sentence using the 2nd conditional form C. this is a correct sentence using the 3rd conditional

    asked by Jim Collum on June 12, 2013
  96. algebra

    THE COMMUTER Sensible Sally has a job that is 35 miles from her home. She needs to be at work by 8:15 a.m. Sally wants to maximize her sleep time by leaving as late as possible but still get to work on time. From experimentations, Sally discovered that if

    asked by sarah on March 7, 2013
  97. Chemistry

    Find the pH during the titration of 20.00 mL of 0.2380 M butanoic acid, CH3CH2CH2COOH (Ka = 1.54 10-5), with 0.2380 M NaOH solution after the following additions of titrant. (a) 0 mL Ive got the answer of 2.72 (b) 10.00 mL Ive got the answer of 4.81 I'm

    asked by Karla on April 2, 2007
  98. chemistry

    a chunk of pure silver has a heat capacity of 42.8J/degrees celsius and a mass of 181g. calculate the specific heat of silver. can you show me how to solve it? please don't just give an answer

    asked by verlee on January 20, 2010
  99. Math

    write and solve two subtraction problem that show how many of each animal therw might be. then write the numbersthey are four different kind of animals on the farm there are 19 More cows than sheep there are 19 more ducks than hens there more hens than cow

    asked by Karen on January 14, 2019
  100. science

    After drugs were administered, the brain activity of each person was recorded. This statement should be classified as 1 the problem = the main issue or subject being investigated in the study 2 a method= a procedure , process, or approach used to

    asked by kizzi on June 5, 2016

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