ANATOMY

Detailed explanation-1: -A change in which one or more new substances are formed is called a chemical change. A chemical change is also called a chemical reaction. Chemical changes are very important in our lives. All new substances are formed as a result of chemical changes.

Detailed explanation-2: -Chemical changes are changes that occur when one substance is turned into another substance.

Detailed explanation-3: -A chemical reaction happens when substances break apart or combine to form one or more new substances. New substances form when bonds break and new bonds form. The chemical properties of the new substances are different from those of the original substances.

Detailed explanation-4: -A chemical reaction occurs when two or more substances are combined to form a new substance and cannot be separated back into its original substances.

Detailed explanation-5: -A chemical change occurs when substances combine (the reactants) to form new substances (the products) as atoms are rearranged.