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

Monjur Alahi

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 (s) + Hydrochloric acid (aq) → Magnesium chloride (aq) + Hydrogen (g)


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Salim Ahmed Kawsar

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Answer

(a) 2KBr (aq) + BaI2 (aq) → 2KI (aq) + BaBr2 (s): Double displacement reaction



(b) ZnCO3 (s) →  ZnO (s) + CO2 (g): Decomposition reaction

(c) H2 (g) + Cl2 (g) → 2HCl (g): Combination reaction

(d) Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g) : Displacement Reaction

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Salim Ahmed Kawsar

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a) 2KBr(aq) + Bal2(aq) → 2KI(aq) + BaBr2(s) → double displacement reaction.
b) ZnCO3(s) → ZnO(s) + CO2(g) → decompoistion reaction.
c) H2(g) + Cl2(q) → 2HCl(g)  combination reaction
d) Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g) → displacement reaction.

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