Given the equation representing a reaction: H + H → H2What occurs during this reaction?

August 2019 NY Regents Chemistry Exam

13 Given the equation representing a reaction: H + H → H2 What occurs during this reaction? (1) A bond is broken and energy is absorbed.

(2) A bond is broken and energy is released.

(3) A bond is formed and energy is absorbed.

(4) A bond is formed and energy is released.

Solution: In the equation to atoms of hydrogen come together, forming a bond. When a bond is formed, energy is released.

Answer: 4

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