Question
Translate the following equations into the language of chemistry and balance by hit and trial method:
Magnesium nitride + Water 
Magnesium hydroxide + Ammonia
Solution
(i) The skeleton equation may be written as
(ii) To equalise the number of Mg atoms, multiply the molecule Mg(OH)2 by 3.
(iii) To balance the nitrogen atoms, multiply the molecule NH3 by 2.
(iv) To equalise the number of H and O atoms on both the sides of the above equation, multiply HO by 6.
(ii) To equalise the number of Mg atoms, multiply the molecule Mg(OH)2 by 3.
(iii) To balance the nitrogen atoms, multiply the molecule NH3 by 2.
(iv) To equalise the number of H and O atoms on both the sides of the above equation, multiply HO by 6.
