. 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)
Best Answer
Explanation:-
- 2KBr(aq) + Bal2 (aq) → 2KI(aq) +BaBr2 (s)
There is only exchanges of ions take place between the reactants.This is an example of double displacement reaction.
- ZnCO3(s) → ZnO(s) + CO2(g)
One reactant molecule is giving two different product molecules; it is an example of decomposition reaction.
- H2(g) + C12(g) → 2HC1(g)
The two different reacting species are combining to form a single product.This is an example of combination reaction.
- Mg(g) + 2HC1(aq) → MgC12(aq) + H2(g)
Mg is displacing the H atom in HCl so this is an example of displacement reaction.
Final Answer:-
( A) is a double displacement reaction.
( B) is a decomposition reaction.
( C) is a combination reaction.
(D) is a single displacement reaction.
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