What type of reaction is shown below? 2na + 2h2o ? 2naoh + h2 + heat a. nuclear b. exothermic c. endothermic d. spontaneous

An exothermic reaction is a type of chemical reaction in which energy is released to the environment in form of heat or light. Endothermic reaction in the other hand is a chemical reaction where energy is taken from the surroundings and thus the surroundings end up with less energy than they started with. In this case; the above reaction is an Exothermic reaction (heat is being released to the surroundings).

A) the enthralling of formation for pure element in its standard state is always positivehope this : )