Question

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 1

The compound formed is magnesium oxide

MgO + H2O----> Mg(OH)2+ H2O

Answer 2

Answer:

2mg+ o2 --> 2MgO

(compound X)

MgO + N2 ----> Mg3N2 + o2

(compound Y)

balanced equation--

MgO + h2o ---> mg(oh)2