Question

Explain how 100ml of hydrogen combine with 50ml of oxygen gives 100ml of water? Does volume changes in a reaction?​

Answer 1

Answer:

100 ml of hydrogen and 50 ml of oxygen will not give you 100 ml of water.

Explanation:

Hydrogen and oxygen react in the ratio 2:1 by volume. 100ml H2 : 50 ml . O2 = 100:50 = 2:1, so your ratio is right. Since gases can be compared only at the same temperature and pressure, let us assume STP