Balance the following chemical equations and identify the type of chemical reaction.
i. Mg(s) + Cl2(g) → MgCl2(s)
ii. HgO(s) Heat→ Hg(l) + O2(g)
iii. Na(s) + S(s) Fuse→ Na2S(s)
iv. TiCl4(l) + Mg(s) → Ti(s) + MgCl2(s)
v. CaO(s) + SiO2(s) → CaSiO3(s)
vi. H2O2(l) UV→ H2O(l) + O2(g)