Balance the following chemical equation and identify the type of chemical reaction.
(a) `Mg(s)+Cl_(2)(g) to MgCl_(2)(s)`
`(b) HgO(s)overset("Heat")to Hg(l)+O_(2)(g)`
`(c) Na(s)+S(s)overset("Fuse")toNa_(2)S(s)`
`(d)TiCl_(4)(l)+Mg(s)toTi(s)+MgCl_(2)(s)` ,
`(e)CaO(s)+SiO_(2)(s)toCaSiO_(3)(s)`
`(f) H_(2)O_(2)(l)overset("UV")to H_(2)O(l)+O_(2)(g)`

Explanation

The chemical equations in their balanced form may be written as follows :
`{:((a), Mg(s) + Cl_(2) (g) to MgCl_(2)(s)"," , "Combination reaction"),((b), 2HgO(s) overset("(heat)")to 2Hg(l) + O_(2)(g),, "Decomposition reaction"),((c), 2Na(s) + S(s) overset("(Fuse)")to Na_(2)S(s),, "Combination reaction"),((d), TiCl_(4)(l) + 2Mg(s) to Ti(s) + MgCl_(2)(s),, "Displacement reaction"),((e), "Equation is already balanced",, "Combination reaction"),((f), 2H_(2)O_(2)(l) overset((uv))to 2H_(2)O(l) + O_(2) (g),, "Decoposition reaction"):}`
For the details about balancing, consult section 1.3.