Question

A chemical reaction takes place to allow hand warmers to give off heat. This is an example of a(n) __________.

A. physical change
B. exothermic reaction
C. endothermic reaction
D. precipitate

Answer 1

B.

Step-by-step explanation:

Gives off heat,.

Answer 2

Exothermic

Step-by-step explanation:

Exothermic reactions release heat, endothermic absorb heat, and precipitate is a solid formed from a solution