Answer:when a chemical reaction occurs with only one substance, the atoms of that substance rearranges to form new bonds to make the products.
Explanation: During chemical reaction, the bonds between the reactants are broken and the atom bonds in new ways to form products that are chemically and physically different from the reactants.
Example is the breakdown reaction of hydrogen peroxide(the reactant) into water and oxygen( products). Here, 2 molecules of hydrogen peroxide is broken down to form 2 molecules of water and one molecule of oxygen. The atoms that started out in the hydrogen peroxide molecules are rearranged to form water molecules and oxygen molecules.
The intensity of the sound wave is defined as the ratio between the power of the wave and the area through which the wave passes: where I is the intensity P is the power A is the area
If we use the data of the problem, and , we find the intensity of the sound wave: