Heavy water is a form of water with a unique atomic structure and properties coveted for the production of nuclear power and weapons. Like ordinary water—H 2 0—each molecule of heavy water ...

and by biological processes within the aquatic environment that can alter the physical and chemical composition of water. Typically, water quality is determined by comparing the physical and ...

Atomic structure Atoms are made from protons ... A pH less than 7 is acidic. Alkalis dissolve in water to give a pH greater than 7. A pH equal to 7 indicates a neutral solution.