Answer:
Reaction of water with K₂O produce base.
Step-by-step explanation:
Reaction of water with K₂O:
K₂O + H₂O → 2KOH
when potassium oxide react with water it produces potassium hydroxide which is base.
Reaction of water with carbondioxide:
When carbondioxide react with water it produces carbonic acid.
CO₂ + H₂O → H₂CO
Carbonic acid is a weak acid and dissociate to gives H⁺ ions. It is aslightly acidic solution and convert into hydrocarbonate ions.
H₂CO₃ → H⁺ + HCO⁻₃
HCO⁻₃ → H⁺ + CO₃⁻²
Reaction of water with NO₂:
3NO₂ + H₂O → 2HNO₃ + NO
Nitrogen dioxide react with water and produce nitric acid and nitrogen monoxide.
Reaction of water with SO₂:
SO₂ + H₂O → H₂SO₃
When sulfur dioxide react with water it gives sulfurous acid.