Use the reaction to answer the question. C2H2+3H2→2CH4 This reaction is exothermic. What does that mean?

Question

A. It would not occur without additional energy.
B. The reaction absorbs energy as it occurs.
C. It would occur without additional energy.
D. The reaction does not consume or produce energy.

Answer 1

The correct answer is: C. It would occur without additional energy.

In an exothermic reaction, energy is released as the reaction occurs, which means it can proceed on its own without additional energy input once started.