Quan
Popular questions and responses by Quan
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 
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 
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 
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 
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 
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 
health
Which one of the following chemicals does the body generate during regular exercise?
asked on January 7, 2015 
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 
Math
Rob colored 1/4 of a rectangle. What is another way to name 1/4?
asked on April 15, 2013 
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 
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 
Science
How do Milkweed buys live in the wild?
asked on September 21, 2019 
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 
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 
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 
Math
2 yards, 1 foot 1 yard=3 feet 2x3feet = how many feet? __ + 1 foot = how many feet?
asked on May 23, 2013 
Math
Writing to Explain Describe how to use a ruler to measure to the nearest inch.
asked on May 21, 2013 
Math
Reasoning To measure the length of a closet, Aaron used his foot and measured 6 footlengths. His father measured 4 footlengths. Could they be measuring the same closet? Explain.
asked on May 20, 2013 
Math
Explain It How is adding and subtracting with money like adding and subtracting whole numbers?
asked on May 13, 2013 
Math
Using money to understand decimals $5.38= how many ones, how many tenths, and how many hundredths.
asked on May 9, 2013 
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 
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 
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 
Math
Explain It How can you compare two fractions by using a number line?
asked on April 17, 2013 
Math
Strategy How much more money do 10 tshirts cost than 6 tshirts. TShirts Cost 1 $8 3 $24 5 $40
asked on February 20, 2013 
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 
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 
Math
Write a Problem Write a multiplication story for 9x8. Include the product in your story.
asked on January 11, 2013 
math
which number is a multiple of 3? 16, 20, 24, 28
asked on January 2, 2013 
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 
world history
what was the purpose of early banks
asked on February 15, 2011

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 
Social studies
Famous poet during the American Revolution
posted on March 21, 2017 
English
Taste
posted on September 15, 2016 
math
yo what up
posted on March 30, 2016 
History
Them answers are incorrect
posted on February 19, 2015 
chemistry
12.48
posted on July 3, 2014 
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 
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 
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 
physics
u got mr feofanav too?
posted on November 13, 2011