# Posts by Quan

Total # Posts: 40

**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?

*November 15, 2016*

**Social studies**

Famous poet during the American Revolution

*January 12, 2016*

**health**

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

*January 7, 2015*

**History**

Them answers are incorrect

*April 25, 2014*

**algebra**

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

*November 6, 2013*

**chemistry**

12.48

*August 21, 2013*

**science**

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

*June 5, 2013*

**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 sample

*June 2, 2013*

**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 sample

*June 2, 2013*

**Math**

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

*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.

*May 27, 2013*

**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.

*May 23, 2013*

**Math**

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

*May 23, 2013*

**Math**

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

*May 21, 2013*

**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.

*May 20, 2013*

**Math**

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

*May 13, 2013*

**Math**

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

*May 9, 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?

*May 3, 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 temperature at 12 noon?

*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 leave home?

*May 2, 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.

*May 1, 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.

*April 22, 2013*

**Math**

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

*April 17, 2013*

**Math**

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

*April 15, 2013*

**English**

Taste

*March 6, 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

*March 1, 2013*

**Math**

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

*February 20, 2013*

**math**

yo what up

*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.

*February 10, 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

*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

*February 5, 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?

*January 30, 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?

*January 18, 2013*

**Math**

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

*January 11, 2013*

**math**

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

*January 2, 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 K2CO3

*March 21, 2012*

**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?

*March 20, 2012*

**physics**

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

*November 12, 2011*

**physics**

u got mr feofanav too?

*November 12, 2011*

**world history**

what was the purpose of early banks

*February 15, 2011*

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