Prove the nature of the following oxides SnO, CaO, CO2
| August 1, 2021 | education
SnO. Tin oxide. Tin (II) oxide is stable in air, amphoteric with a predominance of basic properties. Slightly soluble in water and dilute alkali solutions.
SnO + 2NaOH = Na2SnO2 + H2O.
Dissolves in dilute acids.
SnO + H2SO4 = SnSO4 + H2O
Dissolves in concentrated acids.
SnO + 3HCl = H [SnCl3] + H2O
CaO. Calcium oxide belongs to the basic oxides. As a basic oxide, it reacts with acidic oxides and acids to form salts.
CaO + SO2 = CaSO3
CaO + 2HCl = CaCl2 + H2O
CO2. Carbon monoxide. According to its chemical properties, carbon dioxide belongs to acidic oxides. When dissolved in water, forms carbonic acid. Reacts with alkalis to form carbonates and bicarbonates.
CaO + CO2 = CaCO3.
KOH + CO2 = KHCO3.
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