Complete and balance the following equations:
1. NH3 + CaCl2 →
2. NH3 + P2O5 + H2O →
3. Mg3N2 + H2O →
4. NH3 + O2 + pt(800°C)→
5. Ca + N2 →
6. N2 + H2 + 450°C + Fe→
7. NH3 + H2SO4 →
8. FeCl3 + 3NH4OH →
9. NH3 + CO2 + 150°C + 150 atm →
10. NH3 + Cl2 →