2. A. While the _________ formula represents the smallest whole number ratio of elements in a compound, the ___________ formula is the actual formula of a compound.

3. 1. For an _____ compound, the empirical and molecular formulas are typically the _____.

4. 2. For a _________ (molecular) compound, the empirical and molecular formulas may or may ____ be the _____.

5. B. The relationship between a compound’s empirical and molecular formula can be written as follows:

6. 1. The number represented by x is a ______ number multiple indicating the factor by which the subscripts in the _________ formula must be multiplied to obtain the _________ formula.

7. A. Follow the tips for the calculation of _________ formula.

8. B. Remember that _______ mass and ______ mass are numerically _____ and therefore the molecular formula can be calculated using either of these values.