When water is broken down by electrolysis (the use of electricity), the products are
a. water and carbon dioxide.
b. oxygen and methane.
c. hydrogen gas and oxygen gas.
d. hydrogen ions and oxygen ions?
The electrolysis of water will yield hydrogen gas and oxygen gas as the final products. Oxygen gas and hydrogen ions are formed when the water reacts at the anode. The hydrogen ions then move to the cathode where hydrogen gas is formed.