Question

When an electric current passes through water, _____ takes place, breaking down the compound into hydrogen and oxygen. a physical change an atomic change a chemical change an elemental change

Answer 1

electrolysis takes place when an electric current passes through water.

Answer 2

Answer: a chemical change

Step-by-step explanation:

A physical reaction is defined as the reaction in which a change in shape, size takes place. No new substance gets formed in these reactions. Example: melting of ice

A chemical reaction is defined as the reaction in which a change in chemical composition takes place.A new substance is formed in these reactions.

Decomposition of water using electric current to produce hydrogen and oxygen is called as electrolysis and is a chemical change.

`2H_2O\rightarrow 2H_2+O_2`