In an exothermic reaction, reactants are __ products. a more stable than
b equal to
c equally stable as
d less stable than

A More stable than

In the case of an exothermic reaction, the reactants are at a higher energy level as compared to the products, as shown below in the energy diagram. In other words, the products are more stable than the reactants. Overall Δ H ΔH ΔH for the reaction is negative, i.e., energy is released in the form of heat.

they begin to vibrate harder causing the material that was solid to turn into a liquid i.e gallium or ice