3. Chemical Reactions

Which of the following is the correct formula and charge for the sulfate ion?

Why might arsenic be able to substitute for phosphorus in polyatomic ions?

What is the name of the polyatomic ion with the formula PO_4^{3-}?

Which of the following is the correct formula for the hydrogen phosphate ion?

Which of the following best describes the meaning of the '-ite' ending in the names of polyatomic ions?

Which of the following polyatomic ions has a 3- ionic charge?