What happens during a chemical reaction?
the reactants’ bonds break, and bonds of the products form.
the reactants’ bonds form, and bonds of the products break.
the bonds of both the reactants and the products break.
the bonds of both the reactants and the products form.

The reactants’ bonds break, and bonds of the products form.

Explanation:

When a chemical reaction takes place, the bonds are broken and new bonds are formed to make new molecules. Like when 2 water molecules are broken down to form hydrogen and oxygen.

Option (a) is the correct answer.

Explanation:

A chemical reaction is defined as the reaction in which exchange of electrons take place between reactant molecules due to which bonds between reactant molecules are broken down.

This leads to the formation of new compounds known as products which occur due to formation of bonds.

For example,

Here, bonds between HCl and NaOH are broken down and formation of NaCl and occur due to new bond formation.

Thus, we can conclude that during a chemical reaction the 'reactants' bonds break, and bonds of the products form.

b

explanation:

mitosis

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements