Chemical Reactions That Yield Energy, Such as Heat, are Said

Question

Chemical reactions that yield energy, such as heat, are said to be
A) endergonic.
B) activated.
C) exergonic.
D) neutral.
E) thermonuclear.

Accepted Answer

Exergonic reactions release energy, often in the form of heat, and can occur spontaneously without an input of energy. A is incorrect because endergonic reactions require an input of energy to occur. B is incorrect because activated refers to a state of a molecule or compound before a reaction occurs. D is incorrect because neutral reactions do not yield energy or require an input of energy. E is incorrect because thermonuclear reactions refer specifically to nuclear fusion reactions that occur in stars, not chemical reactions on Earth.