Question

when electricity passed through water hydrogen and oxygen gases or formed change in the state of matter occurs is this example a physical or chemical change explain your answer

Answer 1

Answer:

chemical change is the answer

Answer 2

Answer:

It is a physical change

(because it's a reversible action)

water > H2 + O < water

Explanation:

we know water is made up of Hydrogen and Oxygen

when 2 hydrogen atoms and an oxygen atom are combined together form a water molecule

they changed their gaseous state into liquid state to form water.

When electricity passed through water it splits to its components

Then the 2 hydrogen and 1 oxygen atom released

water changes its liquid form into gas form

these atoms can combine to form water

and under favourable conditions they may released again

there is no change occur chemicaly

so it's a physical change