Question

what is chemical reaction ??? define briefly with the help of an example

Answer 1

Combustion reactions, such as a burning candle, are also examples of the chemical change through the combination of wax and oxygen in a reaction that produces heat, light, and carbon dioxide. Decomposition, the opposite of combination, occurs when a single substance breaks down into two or more different substances.

Answer 2

Chemical reaction are the process in which new substance with new properties are formed is known as chemical reaction..


for a chemical reaction

two reactants are important
ex.....


magnesium+ oxygen. on heat >>> magnesium oxide

hope it help you