Write the balanced chemical equation for the following and identify the type of reaction in each case.

(a) Potassium Bromide (aq) + Barium iodide (aq) Potassium iodide (aq) +Barium bromide (s)
(b) Zinc carbonate(s)
Zinc oxide(s) + Carbon dioxide (g)


(c) Hydrogen(g) + Chlorine (g) Hydrogen chloride (g)


(d) Magnesium + Hydrochloric Magnesium chloride (aq) + Hydrogen (g)

(a) Double displacement reaction (also known as precipitation reaction):

2KBr (aq) + Bal2 (aq) 2KI (q) + BaBr2 (s)
(b) Decomposition reaction:


ZnC03 (s) ZnO (s) + C02 (g)


(c) Combination reaction:


H2 (g) + Cl2 (g) 2HC1 (g)
(d) Displacement reaction:


Mg (s) + 2HCL (aq) MgC12 (aq) + H2 (g)


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