1. What does the -ite or -ate ending in a polyatomic ion mean?

a. Oxygen is in the formula.
b. Sulfur is in the formula.
c. Nitrogen is in the formula.
d. Bromine is in the formula.

2. Which of the following is the corect name for N2O5?

a. nirtous oxide
b. dinitrogen pentoxide
c. nitrogen dioxide
d. nitrate oxide