Q: If an electric current passes through water, water molecules break down into molecules of what?


Read this paragraph and choose the correct option from the provided answers:

The arrow in Figure above shows that the reaction goes from left to right, from hydrogen and oxygen to water. The reaction can also go in the reverse direction. If an electric current passes through water, water molecules break down into molecules of hydrogen and oxygen. This reaction would be represented by a right-to-left arrow in Figure above .

 Choices:

- carbon and oxygen

- hydrogen and carbon

- oxygen and methane

- hydrogen and oxygen


A:
hydrogen and oxygen