Question

A magnesium ribbon is burnt in presence of air forms a compound x. When x is dissolved in water forms a compound y. What is x and y.

Answer 1

The compound X is Magnesium oxide (MgO)

The compound Y is Magnesium Hydroxide ( Mg(OH)2 )

The reactions are ::-

1) Magnesium ribbon burnt in air

2Mg (s). + O2 (g) ------> 2MgO (s)

2.) Magnesium oxide in water

MgO (s) + H2O (l). -------> Mg(OH)2 (s)

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