Question

& 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) + Chlorine(g) → Hydrogen chloride(g)
(d) Magnesium (s) + Hydrochloric acid(aq) -> Magnesium chloride(aq) + Hydrogen(g)​

Answer 1

Answer :

$\bold{(a).}\:\rm{2KBr(aq)+BaI_2(aq)\longrightarrow{}2KI(aq)+BaBr_2(s)}$

• It's a double displacement reaction.

$\bold{(b).}\:\rm{ZnCO_3(s)\longrightarrow{}ZnO(s)+CO_2(g)}$

• It's a decomposition reaction.

$\bold{(c).}\:\rm{H_2(g)+Cl_2(g)\longrightarrow{}2HCl(g)}$

• It's a combination reaction.

$\bold{(d).}\:\rm{Mg(s)+2HCl(aq)\longrightarrow{}MgCl_2(aq)+H_2(g)}$

• It's a displacement reaction.

$\hrulefill$

★︎ Extra Information :-

Balanced chemical equation:-

• A balanced chemical equation is a chemical equation in which the number of atoms of each element on the reactant side is equal to the number of atoms of corresponding elements on the product side.

Classification of chemical reactions:-

Chemical reactions can be classified into:

1. Combination reaction.
2. Decomposition reaction.
3. Single displacement reaction.
4. Double displacement reaction.

Answer 2

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