Question

When electricity is passed through water, then a change V occurs which lead to the formation of two gases W and X. On the other hand, when water is heated strongly, a change Y takes place according to formation of gas Z.

a. What are gases W, X and Z are?

b. What type of change are V and Y?

༺Answer me correctly otherwise I'll report you and as you know your all points are deasreased༻​

Answer 1

Your question is not clear and appears to be incomplete.

Here is explanation about the two reactions:

Change V is electrolysis of water that releases gases, O2 and H2. 2H2O = 2H2 + O2

Change Y is vaporisation when liquid water is changes to water vapour.

If this does not answer your query, kindly recheck your question and do get back to us.

Answer of the incomplete question:

a.i. Hydrogen

ii. Oxygen

iii. Water Vapour or Steam

b. i. Chemical Change

ii. Physical Change