select the correct answer. which products are formed during the decomposition of magnesium nitride…

select the correct answer. which products are formed during the decomposition of magnesium nitride (mg₃n₂)?\na. mg + 3n₂\nb. 3mg + 2n₂\nc. mg + 3n\nd. 3mg + n₂\ne. 2mg + 3n

select the correct answer. which products are formed during the decomposition of magnesium nitride (mg₃n₂)?\na. mg + 3n₂\nb. 3mg + 2n₂\nc. mg + 3n\nd. 3mg + n₂\ne. 2mg + 3n

Answer

Explanation:

Step1: Recall decomposition reaction concept

A decomposition reaction of a compound breaks it into simpler substances. For magnesium nitride ($Mg_3N_2$), we need to break it into its constituent elements magnesium ($Mg$) and nitrogen ($N$). Nitrogen exists as $N_2$ in its elemental form in standard - state conditions.

Step2: Balance the chemical equation

The chemical formula of magnesium nitride is $Mg_3N_2$. When it decomposes, we get magnesium and nitrogen gas. The balanced chemical equation for the decomposition of magnesium nitride is $Mg_3N_2\rightarrow3Mg + N_2$. This is because there are 3 magnesium atoms and 2 nitrogen atoms in $Mg_3N_2$, and in the products, we have 3 separate magnesium atoms and 1 molecule of nitrogen ($N_2$) which contains 2 nitrogen atoms.

Answer:

D. $3Mg + N_2$