Chemistry Regent Exam August 2022
11. Which terms represent two categories of compounds?
(1) chemical and physical
(2) chemical and molecular
(3) ionic and physical
(4) ionic and molecular
Explanation: Two categories of compounds are ionic and molecular. Ionic compounds consist of a metal with a nonmetal (such as NaCl) or a metal with a polyatomic ion (such as LiOH). Covalent compounds consist of two or more nonmetals bonded together (such as CH4).
Answer: 4