Give an example of an endothermic reaction? (b) Is oxidation an exothermic or an endothermic reaction? Explain, by giving an example, how oxidation and reduction processed side by side.

• Endothermic reaction is a reaction heat is absorbed by the reaction and example is burning of carbon in presence of oxygen gives carbon dioxide and a large amount of heat is released

C (s) + O2 (g) →CO2 + Heat

• Oxidation is an exothermic Oxidation is areaction which oxygen combines with other elements and exothermic reaction releases energy through light or heat
• CuO + H2→ Cu + H2O

In this above reaction, Copper oxide is reduced to copper and hydrogen is oxidized to water