What does one mean by exothermic and endothermic reactions? Give examples

a) What does one mean by exothermic and endothermic reaction ? Give example b ) Write the balanced chemical equatioons for the following reactions : i) NaCl+AgNO_3 to AgCl +NaNO_3 II) BaCl_2 +H_2 SO_(4) to BaSO_(4) -HCI

What is meant by exothermic and endothermic reaction? Give examples

What are exothermic and endothermic reactions ?

What do you mean by exothermic and endothermic process?

What do you understand by exothermic and endothermic reaction ? Give one example of each.

What is an endothermic reaction ? Give an example.