Question

Can someone ANSWER what's the difference between exothermic and endothermic reactions?

Answer 1

When a reaction occurs it is exothermic if heat is released and endothermic if heat is absorbed. What that means is that in exothermic reactions the reaction flask gets hot. For example, if you pour gasoline into a container and light it it burns giving off a flame and heat. For an endothermic reaction, heat mut be added to make it go. In terms of delta H, exothermic reactions have a -delta H and endothermic reactions have a + delta H.

Answer 2

Ok thanks!