Write balanced chemical equations for each of the following reactions and identify the type of chemical reactions involved.?

Question

 1. Mercury(II) oxide upon heating yields liquid mercury and oxygen gas. 

Type of reaction _____2.  Octane (C8H18) burns with oxygen to produce carbon dioxide and water. Type of reaction _____3. Magnesium reacts with oxygen to produce magnesium oxide. Type of reaction ______4. Zinc Chloride reacts with solid aluminum to produce aluminum chloride and solid zinc. Type of reaction _______

Answer 1

1.

2 HgO(s) → 2 Hg(ℓ) + O2(g)

decomposition

2.

2 C8H18(g) + 25 O2(g) → 16 CO2(g) + 18 H2O(g)

combustion

3.

2 Mg(s) + O2(g) → 2 MgO(s)

synthesis

4.

3 ZnCl2(s) + 2 Al(s) → 2 AlCl3(s) + 3 Zn(s)

single replacement