Question

Name the type of chemical reaction represented by the following equation:
(a) CaO + H2O Ca(OH)2
(b) 3BaCl2 + Al(SO4)3 2AlCl3 + 3BaSO4
(c) 2FeSO4  Heat Fe2O3 + SO2 + SO3

Answer 1

1. Combination reaction
2.Double displacement reaction
3.Decomposition reaction
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Answer 2

Answer :

(a) Combination reaction

(b) Double-displacement reaction

(c) Decomposition reaction

Explanation :

(a) $CaO+H_2O\rightarrow Ca(OH)_2$

This reaction is a combination reaction in which the two or more compounds are combined to to form a larger compound.

(b) $3BaCl_2+Al(SO_4)_3\rightarrow 2AlCl_3+3BaSO_4$

This reaction is a double displacement reaction in which the two compounds react and positive cation and negative anion of two reactants exchange their places to form two new products.

(c) $2FeSO_4\overset{Heat}\rightarrow Fe_2O_3+SO_2+SO+_3$

This reaction is a decomposition reaction in which the larger compound decomposes into two or more smaller compounds.