Popular questions and responses by Quan
  1. science

    The latent heat of vaporization of water is 540 calories/gram. How many calories are required to completely vaporize 500 grams of water?

    asked on June 5, 2013
  2. Math

    Elliot finished studying at 4:45 p.m. He spent 30 minutes reading a social studies chapter. he spent 45 minutes on his math homework. At what time did Elliot begin studying?

    asked on May 3, 2013
  3. Math

    At 30 degrees, Edgardo said the temperature was warm enough to go swimming. Did he mean to give the temperature in Fahrenheit or Celsius. Explain.

    asked on May 1, 2013
  4. Chemistry

    Block A of an unknown metal has a volume of 125cm^3 . Block B of a different metal has a volume of 145cm^3. If block A has a greater mass than block B, what can be said if the relative densities of two metal?

    asked on January 18, 2013
  5. Math

    Find the number of each kind of object in the collection. Sue's Card Collection 8 packs of baseball cards 3 fewer packs of hockey cards than football cards 17 packs in all

    asked on March 1, 2013
  6. Chemisty

    You started the conventional synthesis with 0.015 mole of salicylic acid. If the reaction worked perfectly, how many moles of aspirin would you make?

    asked on November 15, 2016
  7. health

    Which one of the following chemicals does the body generate during regular exercise?

    asked on January 7, 2015
  8. Math

    Reasonableness John has 4 cups filled with fruit juice. He said that he has a gallon of fruit juice. Is his statement reasonable? Explain why or why not.

    asked on May 23, 2013
  9. Math

    Rob colored 1/4 of a rectangle. What is another way to name 1/4?

    asked on April 15, 2013
  10. Math

    Explain It Wendell has a box with 36 cherries He divides the cherries equally among 5 friends and himself. Bonnie received 6 cherries. She thinks she should have received one more. Is she correct? Explain

    asked on February 7, 2013
  11. Math

    Explain It Evan told his class that the people in his family have 14 legs altogether. Quinton said that there must be 7 people in Evan's family. Is Quinton correct? Explain

    asked on February 5, 2013
  12. Science

    How do Milkweed buys live in the wild?

    asked on September 21, 2019
  13. algebra

    what is the polynomial z2 (a+b)+ z3(a+b) distibuted. the number by the variable is an exponent

    asked on November 6, 2013
  14. Math

    Which of the following best describes the capacity of the thermos? 30 gallons 3 gallons 30 cups 3 cups

    asked on May 29, 2013
  15. Math

    Explain It Emily said the larger an object is, the more it weighs. Is Emily correct? Explain why or why not.

    asked on May 27, 2013
  16. Math

    2 yards, 1 foot 1 yard=3 feet 2x3feet = how many feet? __ + 1 foot = how many feet?

    asked on May 23, 2013
  17. Math

    Writing to Explain Describe how to use a ruler to measure to the nearest inch.

    asked on May 21, 2013
  18. Math

    Reasoning To measure the length of a closet, Aaron used his foot and measured 6 foot-lengths. His father measured 4 foot-lengths. Could they be measuring the same closet? Explain.

    asked on May 20, 2013
  19. Math

    Explain It How is adding and subtracting with money like adding and subtracting whole numbers?

    asked on May 13, 2013
  20. Math

    Using money to understand decimals $5.38= how many ones, how many tenths, and how many hundredths.

    asked on May 9, 2013
  21. Math

    Problem Solving Work Backward The temperature was 16 degree Celsius when Becky returned home at 6 p.m. The temperature was 4 degree Celsius warmer at 3 p.m. than it was at 6 p.m. It was 3 degree Celsius warmer at 12 noon than it was at 3 p.m. What was the

    asked on May 3, 2013
  22. Math

    Problem Solving: Work Backward Will arrived at his mother's office at 3 p.m. It took him 30 minutes to walk from his home to the mall. He was in the mall for 45 minutes. It them took him 15 minutes to walk to his mother's office. At what time did Will

    asked on May 2, 2013
  23. Math

    The school bus stops at Randy's stop at 8:15 a.m. Randy arrived at the bus stop at quarter after 8. Did he miss the bus? Explain.

    asked on April 22, 2013
  24. Math

    Explain It How can you compare two fractions by using a number line?

    asked on April 17, 2013
  25. Math

    Strategy How much more money do 10 t-shirts cost than 6 t-shirts. T-Shirts Cost 1 $8 3 $24 5 $40

    asked on February 20, 2013
  26. Math

    Reasoning It costs $7 for a matinee and $8 for an evening movie. With $56, would you be able to buy more matinee tickets or evening tickets? Explain.

    asked on February 10, 2013
  27. Math

    Some syrup spilled on a checkerboard style table. The syrup covered some of the tiles. There were 36 squares on the table. How many of the squares had syrup on them?

    asked on January 30, 2013
  28. Math

    Write a Problem Write a multiplication story for 9x8. Include the product in your story.

    asked on January 11, 2013
  29. math

    which number is a multiple of 3? 16, 20, 24, 28

    asked on January 2, 2013
  30. math

    you have several coins that total 38 cents. you have the same number of pennies as you do nickles. how many coins do you have?

    asked on March 20, 2012
  31. world history

    what was the purpose of early banks

    asked on February 15, 2011
  1. AP Chemistry

    What are the steps to doing this... your answer is correct, I just want to know because I could really help me out with my chemistry test next week.

    posted on November 27, 2018
  2. Social studies

    Famous poet during the American Revolution

    posted on March 21, 2017
  3. English


    posted on September 15, 2016
  4. math

    yo what up

    posted on March 30, 2016
  5. History

    Them answers are incorrect

    posted on February 19, 2015
  6. chemistry


    posted on July 3, 2014
  7. Statistics

    The time it takes for climbers to reach the highest point of a mountain is normally distributed with a standard deviation of 0.75 hours. If a sample of 35 people is drawn randomly from the population, what would be the standard error of the mean of the

    posted on June 5, 2013
  8. Chemistry!!!

    First look up ksp for both FeCO3 and MgCO3. FeCO3 ksp=3.07*10^-11 MgCO3 ksp=6.82*10^-6 Which is less soluble? FeCO3 so in a solution it would precipitate first. How to find K2CO3 concentration? Fe ksp=[Fe2+][K2CO3] 3.07*10^-11= 0.022*[K2CO3] Solve for

    posted on March 19, 2013
  9. physics

    the answer is 100N gravity and the ground cancel out, and force is 700 N ---> friction is 600 N

    posted on November 13, 2011
  10. physics

    u got mr feofanav too?

    posted on November 13, 2011