Question

what type of reactions are represented by the following equations: i) CaO + CO2 forms CaCO3 ii)2Na + 2H20 forms 2NaOH + H2 iii)Mg + CuSO4 forms MgSO4 + Cu iv)CuSO4 +2NaOH gives Cu(OH)2 + Na2SO4

Answer 1

( i) CaO + CO2 forms CaCO3 = Precipitation reaction

( ii)2Na + 2H20 forms 2NaOH + H2 = Displacement Reaction

( iii) Mg + CuSO4 forms MgSO4 + Cu = Displacement Reaction

( iv) CuSO4 +2NaOH gives Cu(OH)2 + Na2SO4 = Double Displacement Reaction.

Answer 2

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1) Precipitation Reaction

2) Displacement reaction

3) Displacement reaction


4) Double Displacement reaction