Balance the following chemical equations and identify the type of chemical reaction.
(a) Mg(s)+Cl2(g)→MgCl2(s)
(b) HgO(s)→Hg(I)+O2(g)
(c) Na(s)+S(s)→Na2S(s)
(d) TiCl4(I)+S(s)→Ti(s)+MgCl2(s)
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Solution
a. Mg(s)=Cl2(g)→MgCl2(s) [Combination Reaction]
b. 2HgO(s)→2Hg(I)+O2(g) [Decomposition Reaction]
c. 2Na(s)+S(s)→Na2S(s) [Combination Reaction]
d. TiCl4(I)+2Mg(s)→Ti(s)+2MgCl)2(s) [Single displacement reaction]