Popular questions and responses by Shell
  1. Law of Multiple Proportions

    Two elements, R and Q, combine to form two binary compounds. In the first compound, 14.0 g of R combines with 3.00 g of Q. In the second compound, 7.00 g of R combines with 4.50 g of Q. Show that these data are in accord with he law of multiple

    asked on November 14, 2006
  2. Organic Chemistry

    Why does the loss of a proton from cyanic acid yield the same anion as that obtained by the loss of a proton from isocyanic acid?

    asked on September 6, 2010
  3. Math

    A piece of cardboard measuring 11 inches by 12 inches is formed into an open-top box by cutting squares with side length x from each corner and folding up the sides. Find a formula for the volume of the box in terms of x V(x)= ? Find the value for x that

    asked on February 28, 2020
  4. Math

    Solve the equation. Round to the nearest tenth if necessary. 1#: 7r - 7 = 2r +18 1. r= -5 2. r= 5 3. r= 2.2 4. r= 1.2 _____________________________________________________ Solve the equation. Round to the nearest tenth if necessary. 2#: 2x + 12 = 18 - x 1.

    asked on November 23, 2019
  5. Spanish

    Usa ORACIONES COMPLETAS para completar estas actividades. (9) 1. ¿Tiene buena pinta? Escriba un párrafo de 4-5 oraciones para describir la foto encima de esta pregunta. Use una variedad de vocabulario y verbos. (5) Answer 2. ¿Te gusta la idea de comer

    asked on June 21, 2014
  6. Math

    If 1700 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box. Volume = ?

    asked on February 28, 2020
  7. english

    There was one student still taking the exam when the bell rang. I need to find simple subject and complete subject. I know that "STUDENT" is the subject

    asked on August 26, 2016
  8. Finance

    An insurance company is offering a new policy to its customers. Typically, the policy is bought by a parent or grandparent for a child at the child's birth. The details of the policy are as follows: The purchaser (say, the parent) makes the following six

    asked on March 8, 2013
  9. Accounting

    1. Partially Correct Check My Work Problem-Solving Strategy Problem 16-1 (Algorithmic) Statement of Cash Flows—Indirect Method The comparative balance sheet of Mavenir Technologies Inc. for December 31, 2013 and 2012, is shown as follows: Dec. 31, 2013

    asked on April 21, 2012
  10. marketing

    13) The main difference between a marketing strategy and a marketing plan is that: A. Time-related details are included in a marketing plan. B. A marketing strategy omits pricing plans. C. A marketing strategy provides more detail. D. A marketing plan

    asked on August 9, 2011
  11. chemistry

    How many grams of potassium hydrogen phthalate should be added to a 100 mL volumetric flask to prepare a 0.5000 M solution when the flask is diluted to the mark with water?

    asked on May 19, 2011
  12. physics

    'perpetual motion' is ruled out of the realm of possibility because of which law of thermodynamics?

    asked on May 12, 2008
  13. Physics

    So, how much horsepower would a Challenger SRT® Hellcat Redeye Widebody need to tow the SS Delphine up the industry standard: Davis Dam Grade Climb? Pro Tips Davis Dam assumed grade = 7% Air density is sea level conditions (.002377 slugs/f^t3) w(weight)

    asked on November 26, 2019
  14. math

    6x2y2 + 3x2y – 4xy2 + 5x2y – 2x2y2

    asked on September 10, 2019
  15. math

    You play a game in which two dice are rolled. If a sum of 7 appears, you win $10. Otherwise you lose $2.00. If you intend to play the game for a long time should you expect to make money, lose money or come out even?

    asked on March 14, 2017
  16. Spanish 102, P,P&F Tense Essay

    Please look over my short Essay. Past Present and Future tenses must all be used; topic is on activities of a week/ days surrounding I need to score well. Any corrections or advice is very much appreciated.

    asked on August 9, 2014
  17. spanish

    Are my answers correct? Use el adverbio TAN o una forma del adjetivo TANTO para formar frases de comparación en cada instante. 10. China es un país con mucha gente (1.300.000.000 personas). Aunque es más grande, Los Estados Unidos sólo tiene

    asked on June 21, 2014
  18. english

    Any suggestions on punctuation, grammar and sentence structure? Springfield Homeless Camps and the Law The growing homeless population in Springfield Missouri is unavoidable. They are seen everywhere, especially in more populated towns and cities. As they

    asked on November 22, 2011
  19. Math

    How do you find x+3=-2 ?

    asked on November 17, 2011
  20. english

    Any suggestions for corrections? It’s The Little Things In my line of work, my passion for helping others can often times be a thankless job. Once in a while, in the midst of pain, suffering, and chaos, I experience feelings that are in contrast to what

    asked on October 31, 2011
  21. Chemistry

    A 225 g sample of xenon is placed in a 15.6 L stainless steel vessel at 27.0°C. a. What is the pressure in the vessel? b. If the temperature is raised to 200°C, what is the pressure in the vessel? c. The air pressure outside the vessel is 1.00 atm. If

    asked on May 19, 2011
  22. Chemistry

    Chalk is a soft, white, porous sedimentary rock, a form of limestone composed of the mineral calcite. Calcite is calcium carbonate, CaCO3. It forms under relatively deep marine conditions from the gradual accumulation of minute calcite plates (coccoliths)

    asked on May 19, 2011
  23. Chemistry

    Methyl linoleate is one of the common components of biodiesel. As an alternative fuel, Methyl linoleate reacts completely with oxygen (O2) to make carbon dioxide and water. Balance the chemical equation. How many kilograms of oxygen are required to react

    asked on May 19, 2011
  24. Chemistry

    Preparing solutions a. A solution was prepared by dissolving 5.65 g potassium bromide in 32.67 g water. What is the concentration of this solution in weight percent? b. The solution was poured into a 100 mL volumetric flask and water was added to the mark

    asked on May 19, 2011
  25. Chemistry

    Considering the emission of the hydrogen atom, a. what is the wavelength of the light emitted by the transition from n = 2 to n = 1. b. In what region of the electromagnetic spectrum does this radiation belong?

    asked on May 19, 2011
  26. Chemistry

    You are having a garden party and are preparing a punch bowl. You add one pound of ice at -20°C to 5.00 gallons of punch at 25°C. Since the punch is mostly water, you can assume it has the same specific heat as water. What is the final temperature of the

    asked on May 19, 2011
  27. chemistry

    Your 1.1 cubic foot GE microwave oven generates 1100 watts of microwaves at a frequency of 2.45 GHz. a. What is the wavelength of the microwave radiation being emitted? b. How many photons per second of microwaves are being emitted?

    asked on May 19, 2011
  28. chemistry

    A proton beam is made by accelerating protons in a high voltage electric field. The protons have a velocity of 2.75 x 107 m/s. What is the wavelength of the protons traveling at this very high speed?

    asked on May 19, 2011
  29. math

    Hi I need some help with this math problem..... x - 3/4= 5/6

    asked on May 14, 2011
  30. Math

    A farmer buys two varieties of animal feed. Type A contains ounces of oats and ounces of corn per pound. Type B contains ounces of oats and ounces of corn per pound. The farmer wants to combine the two feeds so that the resulting mixture has at least

    asked on February 24, 2011
  31. College Physics

    What is the work required to move a proton 1 cm along the 7 volt equipotential line?

    asked on September 19, 2010
  32. probability

    a jar holds 20 red lollys, and 30 blue lollys. if you draw a lolly without looking, what is the probability that it is a red lolly??

    asked on August 18, 2010
  33. College Chemistry

    A 30.00 mL volume of a weak acid, HA, (Ka = 3.8 x 10^-6) is titrated with 39.00 mL of 0.0958 M NaOH to the equivalence point. A.) What is the pH of the acid solution, before any base is added to it? B.) What is the pH of the acid solution after exactly

    asked on April 13, 2010
  34. gr 12 chem

    evidence indicates that copper is paramagnetic, but zinc is not. Explain the evidence.

    asked on March 30, 2010
  35. Polynomials math

    I need help setting up this problem or atleast if I am on the write track to solving it. The Jurassic Zoo charges $28.00 for each adult admission and $12.00 for each child. The total bill for 454 people from a school trip was $3860.00. How many adults and

    asked on June 18, 2009
  36. Psychology

    compare and contrast the psychoanalytic, humanistic, and diversity views of human motivation

    asked on November 17, 2008
  37. Personal Finance

    Mary would like to save 10,000 by the end of 3 yrs from now she currently has 2500 in savings. she would like to make equal year end deposits to the savings. Account pays 8% interest. How much should the year end payments be

    asked on February 16, 2008
  38. math/algebra

    Can you explain pollynomials to me? i don't quit understand them... polynomials are expressions consisting of several terms that are separated by addition and/or subtraction. "poly" from the Greek means "many" e.g. x^+4xy + 12 is a trinomial, a subset of

    asked on July 25, 2007
  1. Algebra 1

    The answer if there is a 2-inch border would be 8x-16 Step by Step: 2(2x) + 2(2)(x - 4) Multiply 2 times 2x and 2 times 2: 4x + 4 (x - 4) Use Distributive Property to multiply 4 times x and 4 times - 4 (negative 4): 4x + 4x - 16 Then add like terms, 4x

    posted on March 12, 2020
  2. Physics

    Thank you!

    posted on November 26, 2019
  3. Math

    I got an A+!!! Thank you Ms. Sue!!

    posted on November 23, 2019
  4. Algebra

    Answers to worksheet 63?

    posted on February 5, 2016
  5. Math

    define Variables, Grade#1=x Grade#2=y total cost=z a=pounds of Grad#1 b=pounds of Grade#2 write equation, z=ax+by Define values 12 pounds Grade1 and 10 pounds of Grade2 worth $54; 8 pounds Grade1 and 15 pounds Grade2 worth $61 Plug in values, isolate one

    posted on October 21, 2012
  6. Math

    Variables, X=first, (fixed) rate y=second, rate(/minute) t=time of call z=total cost Equation, z=x+((t-1)*y) Values, 7minutes is $10, 4minutes is $6.40 Plug them in, isolate one variable, set them equal to each other, and solve for the remaining variable,

    posted on October 21, 2012
  7. Algebra Grade 7

    Hugo: 12-9=3years 62-56=6inces 6 is what present of 56? 6 = x * 56 6/56=x 3/28=x x=0.10714286 the the nearest tenth, x=0.1 Interest: x=opening deposit y=interest rate (some decimal number or percent[which is then turned into a decimal]) $3262.50 over the

    posted on October 21, 2012
  8. algebra

    x cannot be negative, so only one of the two possible number for x is correct.

    posted on October 21, 2012
  9. college alegebra

    ....ok, maybe it's not easy... >.<

    posted on October 21, 2012
  10. college alegebra

    Reiny, no, actually, the square root of anything is not always the positive. because if you multiply two negative numbers, you get a positive number. So, when you square root anything, you assume it is either the positive or negative of a number, because

    posted on October 21, 2012
  11. math

    Tina, Reiny is correct about the equation you are looking for, but the examples are not quite what you want. The directions tell you "in lowest terms" that means your fraction has been reduced the farthest it can go and still be a fraction, and not a

    posted on October 21, 2012
  12. math

    Your equation is correct, but your answer is not. Your number of Edges is you e variable. so you are looking for the "e" what you found is "e+2" As a general Rule with math equations, and you can do this before you put your numbers in, figure out what

    posted on October 21, 2012
  13. Algbera


    posted on June 1, 2012
  14. Algebra 1

    4x+5y=4, 8x+10y=8

    posted on October 30, 2011
  15. math substitution method

    solve by using the substitution method. 5x-3y=-25 4x+34=y

    posted on October 14, 2011
  16. Chemistry

    25.1 degrees celsius

    posted on May 19, 2011
  17. Math

    A farmer buys two varieties of animal feed. Type A contains 9 ounces of oats and 2 ounces of corn per pound. Type B contains 5 ounces of oats and 10 ounces of corn per pound. The farmer wants to combine the two feeds so that the resulting mixture has at

    posted on February 24, 2011
  18. College Physics

    I'm not sure how this is zero?

    posted on September 19, 2010
  19. Organic Chemistry

    The order of the elements; the position of the nuclei?

    posted on September 6, 2010