A chemical reaction is an interaction that always causes: O A. matter to be changed into energy.
B. macromolecules to be formed from glucose.
O C. molecules to break apart into atoms.
O D. atoms to be rearranged into new substances.

D. atoms to be rearranged into new substances.

Explanation:

Chemical reactions involve interaction between chemicals such that all reactants are changed into new materials. The properties of the new materials are different from those of the reactants.

Chemical reactions involve breaking chemical bonds between reactant molecules (particles) and forming new bonds between atoms in product particles (molecules). The number of atoms before and after the chemical change is the same but the number of molecules will change.