1.

Exothermic reactions take place when

A. energy given out in making bonds is less than the energy taken in for breaking bonds
B. energy given out in making bonds is more than the energy taken in for breaking bonds
C. energy given out in making bonds is equal to the energy taken in for breaking bonds
D. the final energy content of products is lower
Answer» C. energy given out in making bonds is equal to the energy taken in for breaking bonds


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