Semester 1 Review

question

Describe the proper procedure for diluting an acid.
answer

question

Describe the proper procedure for heating a substance in a test tube
answer

question

Describe the proper procedure for testing the odor of a substance
answer

question

Describe the proper procedure for determining the volume of a liquid in a graduated cylinder
answer

question

Describe the proper procedure for deposing of a chemical
answer

question

What is a material safety data sheet?
answer

question

What is Chemistry?
answer

question

What is the Scientific Method?
answer

question

What is the main difference between physical properties and chemical properties? Give an example of each.
answer

question

Physical change or chemical change?
a. Tearing a sheet of paper
b. melting a piece of wax
c. burning a log
answer

question

You are given a sample of matter to examine. How do you decide whether the sample is a solid, liquid, or gas?
answer

question

Contrast mixtures with pure substances.
answer

question

Suppose different parts of a sample material have different compositions. What can you conclude about the material?
answer

question

Suppose different parts of a sample have the same composition. What can you conclude about the material? Explain your answer.
answer

question

State the Law of Conservation of Mass.
answer

question

Water can be produced by the reaction hydrogen gas with oxygen gas.
a. Identify the reactant(s)
b. Identify the product(s)
c. If 8.00g of hydrogen gas react with 64.0g of oxygen gas, how many grams of water will be produced?
answer

question

Which of the following are quantitative?
a. the liquid floats on water
b. the metal is malleable
c. the liquid has a temperature of 55.6 degrees celsius
answer

question

The density of coper is listed as 8.94g/cm3. Two students each make three density determinations of samples of the substance. Student A’s results are 7.3g/cm3, 9.4g/cm3 and 8.3g/cm3. Student B’s results are 8.7g/cm3, 8.8g/cm3 and 8.8g/cm3. Compare the two sets of results in terms of precision and accuracy.
answer

question

The density of copper is listed as 8.94g/cm3. Two students each make three density determinations of samples of the substance. Student A’s results are 7.3g/cm3, 9.4g/cm3 and 8.3g/cm3. Student B’s results are 8.7g/cm3, 8.8g/cm3 and 8.8g/cm3. Compare the two sets of results in terms of precision and accuracy.
answer

question

Determine the number of significant figures in each of the following
a. 805.05g
b. 0.0144030 km
c. 1002 m
d. 400 ml
e. 30,000. cm
f. 0.0006335000 kg
answer

question

Round 2.6765 to two significant figures.
answer

question

Carry out the following calculations. Express your answer to the correct number of significant figures.
a. 52.13g + 1.7502g =
b. 12m x 6.41m =
c. 16.25g % 5.1442ml =
d. 14.39L – 6.2L =
answer

question

Write the following numbers in scientific notation
a. 560,000
b. 33,400
c. 0.0004120
answer

Get instant access to
all materials

Become a Member