Which of the listed substances can calcium hydroxide interact with: magnesium oxide carbon monoxide (4) copper sulfate (2)

Which of the listed substances can calcium hydroxide interact with: magnesium oxide carbon monoxide (4) copper sulfate (2) phosphoric acid, calcium hydrogen sulfite magnesium hydrogen carbonate

1) Ca (OH) 2 + MgO – the reaction does not proceed, because calcium hydroxide is a base, and magnesium oxide is a basic oxide;

2) Ca (OH) 2 + CO2 = CaCO3 + H2O – the reaction proceeds, because calcium hydroxide is a base, and carbon monoxide (IV) is an acidic oxide;

3) Ca (OH) 2 + CuSO4 = Cu (OH) 2 + CaSO4 – the exchange reaction proceeds to the end, since Cu (OH) 2 precipitates;

4) 3 Ca (OH) 2 + 2 H3PO4 = Ca3 (PO4) 2 +6 H2O – the exchange reaction proceeds to the end, as water is formed;

5) Ca (OH) 2 + Ca (HSO4) 2 = 2 CaSO4 + 2H2O – the exchange reaction proceeds to the end, as water is formed;

6) Ca (OH) 2 + Mg (HCO3) 2 = Ca (HCO3) 2 + Mg (OH) 2 – the exchange reaction proceeds to the end, since Mg (OH) 2 precipitates;