Question

5. Classify the following reaction as combination, decomposition, displacement and double displacement reaction:
a. BaCl2 + H2SO4 - BaSO4 + 2HCI
b. C+02 CO2
c. 3CuSO4 + 2Al Al2(SO4)3 + 3 Cu
d. ZnCO; - ZnO + CO2​

Answer 1

Answer:

a. Double Displacement Reaction

b. Combination Reaction

c. Displacement Reaction

d. Decomposition  Reaction

Hope it helps :)

Answer 2

$BaCl_2+H_2SO_4\rightarrow BaSO_4+2HCI$ : Double displacement reaction

$C+O_2\rightarrow CO_2$: Synthesis reaction

$3CuSO_4+2Al\rightarrow Al_2(SO_4)_3+3Cu$: Single displacement reaction

$ZnCO_3\rightarrow ZnO+CO_2$: Decomposition reaction

Explanation:

Double displacement reaction is defined as the reaction where exchange of ions takes place.

$BaCl_2+H_2SO_4\rightarrow BaSO_4+2HCI$

Synthesis reaction is defined as the reaction where substances combine in their elemental state to form a single compound.

$C+O_2\rightarrow CO_2$

Single displacement reaction is defined as the reaction where more reactive element displaces a less reactive element from its chemical reaction.

$3CuSO_4+2Al\rightarrow Al_2(SO_4)_3+3Cu$

Decomposition reaction is defined as the reaction where a single substance breaks down into two or more simpler substances.

$ZnCO_3\rightarrow ZnO+CO_2$

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