When of anhydrous Magnesium Nitrate, , are strongly heated until constant weight is achieved, what i — s Block Elements Chemistry Question

💡 Solution & Explanation

All alkaline earth metal nitrates decompose similarly to Lithium nitrate. The balanced equation is $2Mg(NO_3)_2 \xrightarrow{\Delta} 2MgO + 4NO_2 \uparrow + O_2 \uparrow$. From 2 moles of reactant, exactly 4 moles of $NO_2$ and 1 mole of $O_2$ are produced, giving a total of 5 moles of gas.