1. D

2.C

3.B

4.C

5.C

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Answer:

1. Which unit of measurement is used to represent the amount or quantity of a

substance?

A. amu

B. m3

C. mg

D. mol

2. Which formula tells the actual number of atoms in a molecule?

A. Chemical formula

B. Empirical formula

C. Molecular formula

D. None of the above

3. Which formula shows the smallest whole-number ratio of atoms of the

elements in a compound?

A. Formula mass

B. Empirical formula

C. Molecular formula

D. Percent composition

4. Which quantity of matter is equivalent to the mass of 1 mole of any element?

A. Atoms

B. Compound

C. Atomic mass

D. Number of particles

5. What is the atomic mass of an atom that has 12 protons, 12 electrons, and

12 neutrons?

A. 6 amu

B. 12 amu

C. 24 amu

D. 48 amu

Explanation:

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