Question
How many hydrogen and oxygen atoms are obtained when one molecule of water decomposes.
Solution
When water molecule decomposes it gives hydrogen and oxygen. according to law of conversation of mass " mass neither be created nor be destroy but change into one form to other form. Thus, 2 molecules of water gives 2 molecules of hydrogen, i.e., 4 atoms of hydrogen and one molecule of oxygen, i.e., two atoms of oxygen. Hence, one molecule of water on decomposition gives 2 atoms of hydrogen and one atom of oxygen.
