Chemistry Regent Exam August 2022
12. When an atom of hydrogen and an atom of chlorine combine to form a molecule of hydrogen chloride, a bond is
(1) formed as energy is absorbed
(2) formed as energy is released
(3) broken as energy is absorbed
(4) broken as energy is released
Explanation: When two atoms combine, a bond must form between them. Forming a bond releases energy.
Answer: 2