Chemical reactions changes substances and produces a new different substance.
Step-by-step explanation:
By the process of chemical reactions, many substances are converted or changed into different compounds as a product. The reactants that cause the change are changed into products of the reaction. They are usually chemical compounds. The reactions organize the atoms of a compound and create other substances.
Examples of chemical reactions are- burning of fuel, pottery, cheese and wine making etc. They are different from physical changes like- ice melting and becoming water.