Answer
The balanced chemical equation are :
$MgCO_3(s)+heat \rightarrow MgO(s)+CO_2(g)$ $Mg(OH)_2(s)+heat \rightarrow MgO(s)+H_2O(g)$
Work Step by Step
Calcination is the process of heating the mineral at a high temperature to remove impurities. Calcination of magnesium ores gives magnesium oxide and other products.
The balanced chemical equations are :
$MgCO_3(s)+heat \rightarrow MgO(s)+CO_2(g)$ $Mg(OH)2(s)+heat \rightarrow MgO(s)+H_2O(g)$
