Question

Students find that water can be created in a lab by burning hydrogen gas in air. They conclude that water is not a compound because only hydrogen is used to form the water. What is wrong with their conclusion?

Answer 1

Explanation:

Their conclusion is wrong because water is not obtained from hydrogen gas alone.

The reaction for the production of water is given as;

2H2 + O2  --> 2H2O

They fail to take account of the oxygen that came as a result of burning hydrogen gas in air.