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 contains to burn and forms a compound Y.
a) write the chemical formula of X and Y.
b) write the balance chemical equation,when X is dessolved in water.

Answer 1

a)
X is MgO (Magnesium Oxide).
Y is Mg3N2(Magnesium Nitride).

b)
When X is dissolved in water,

MgO(s) + H2O(l) ———> Mg(OH)2(aq)

(Already balanced).




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Answer 2

Answer:

2mg+ o2 --> 2MgO

(compound X)

MgO + N2 ----> Mg3N2 + o2

(compound Y)

balanced equation--

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