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. (b) Write a balanced chemical equation, when X is dissolved in water.

A magnesium ribbon is burnt in oxygen to give a white compound X accom

1.	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. (b) Write a balanced chemical equation, when X is dissolved in water.
Answer» Solution :`2Mg+O_(2)rarr2MgO+"Light"` `3Mg+N_(2)rarrMg_(3)N_(2)` (i) `X" is "MGO,Y" is "Mg_(3)N_(2)` (ii) `MgO+H_(2)OrarrMg(OH)_(2)`