A magnesium ribbon is burnt in oxygen to give a white compound X accompanied by emission of light. If the burning ribbon is now placed in an atmosphere of nitrogen, it continues to burn and forms a compound Y.
(a) Write the chemical formulae of X and Y
Ans. X is MgO Y is Mg3N2
(b) Write a balanced chemical equation, when X is dissolved in water.
Ans. MgO + H2O → Mg(OH)2
