Question

What is the method used to decompose water?

What are the substances formed by the decomposition of water?
Is it possible to decompose these substances again?​

Answer 1

1. Electrolysis is the process or method used to decompose water.

$2. \: \: \: \: \: \: \: 2H_{2}O \Longrightarrow 2H_{2} + O_{2 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: } \\ \small \text{hydrogen \: and \: oxygen \: is \: formed}$

3. No, it's not possible to decompose the substances formed again.

Answer 2

Answer:

I hope this answer is useful.