Chapter 8, Problem 46APP

Balance each of the following chemical equations, and identify the type of reaction: (8.1, 8.2, 8.3) 
$\begin{array}{l}\begin{array}{l}a.S{i}_3{N}_4\left(s\right)\to Si\left(s\right)+N_2\left(g\right)\hfill \\ b.Mg\left(s\right)+N_2\left(g\right)\to M{g}_3{N}_2\left(s\right)\hfill \\ c.H_{3}P{O}_4\left(aq\right)+Al\left(s\right)\to H_2\left(g\right)+AIP{O}_4\left(aq\right)\hfill \\ d.C_3{H}_4\left(g\right)+O_2\left(g\right)\stackrel{\Delta }{\to }C{O}_2\left(g\right)+H_{2}O\left(g\right)\hfill \end{array}\\ \begin{array}{l}e.C{r}_2{O}_3\left(s\right)+H_2\left(g\right)\to Cr\left(s\right)+H{2}_{}O\left(g\right)\hfill \\ f.Al\left(s\right)+C{1}_2\left(g\right)\to AIC{I}_3\left(s\right)\hfill \\ g.MgC{I}_2\left(aq\right)+AgN{O}_3\left(aq\right)\to AgCI\left(s\right)+Mg{\left(N{O}_3\right)}_2\left(aq\right)\hfill \end{array}\end{array}$