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Match the column in the following table (reactants, products, type of chemical reaction).

ReactantsProductsType of chemical reaction
\(\mathrm{BaCl_2(aq) + ZnSO_4(aq)}\)\(\mathrm{H_2CO_3(aq)}\)Displacement
\(\mathrm{2AgCl(s)}\)\(\mathrm{FeSO_4(aq) + Cu(s)}\)Combination
\(\mathrm{CuSO_4(aq) + Fe(s)}\)\(\mathrm{BaSO_4\downarrow + ZnCl_2(aq)}\)Decomposition
\(\mathrm{H_2O(l) + CO_2(g)}\)\(\mathrm{2Ag(s) + Cl_2(g)}\)Double displacement
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Correct matching:

ReactantsProductsType
\(\mathrm{BaCl_2(aq) + ZnSO_4(aq)}\)\(\mathrm{BaSO_4\downarrow + ZnCl_2(aq)}\)Double displacement
\(\mathrm{2AgCl(s)}\)\(\mathrm{2Ag(s) + Cl_2(g)}\)Decomposition
\(\mathrm{CuSO_4(aq) + Fe(s)}\)\(\mathrm{FeSO_4(aq) + Cu(s)}\)Displacement
\(\mathrm{H_2O(l) + CO_2(g)}\)\(\mathrm{H_2CO_3(aq)}\)Combination
  • Barium chloride and zinc sulphate exchange ions; white barium sulphate precipitates, so it is double displacement.
  • Silver chloride breaks down (in sunlight) into silver and chlorine: one reactant gives two products, so it is decomposition.
  • Iron is more reactive than copper and displaces it from copper sulphate solution: displacement.
  • Water and carbon dioxide join to form a single product, carbonic acid: combination.
Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report
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