Water can be broken down into hydrogen and oxygen gases by the addition of what?
demand
motion
mineral
energy
Chemistry in Everyday Life Decomposition of Water / Production of Hydrogen Water consists of the elements hydrogen and oxygen combined in a 2 to 1 ratio. Water can be broken down into hydrogen and oxygen gases by the addition of energy. One way to do this is with a battery or power supply, as shown in (Figure 1.15).