Chapter 8, Problem 8.46AQAP

Balance each of the following chemical equations, and identify the type of reaction: (8.1, 8.2, 8.3)

1. $S{i}_3{N}_4\left(s\right)\to Si\left(s\right)+N_2\left(g\right)$
2. $Mg\left(s\right)+N_2\left(g\right)\to M{g}_3{N}_2\left(s\right)$
3. $Al\left(s\right)+H_{3}P{O}_4\left(aq\right)\to H_2\left(g\right)+AlP{O}_4\left(aq\right)$
4. $C_3{H}_4\left(g\right)+O_2\left(g\right)\underset{\to }{\Delta }C{O}_2\left(g\right)+H_{2}O\left(g\right)$
5. $C{r}_2{O}_3\left(s\right)+H_2\left(g\right)\to Cr\left(s\right)+H_{2}O\left(g\right)$
6. $Al\left(s\right)+C{l}_2\left(g\right)\to AlC{l}_3\left(s\right)$
7. $MgC{l}_2\left(aq\right)+AgN{O}_3\left(aq\right)\to AgCl\left(s\right)+Mg{\left(N{O}_3\right)}_2\left(aq\right)$