Give an example of oxides interacting with water to form acids.

Here are some reactions for obtaining acids from the corresponding oxides:

1. Sulfur oxide (+6) gives sulfuric acid:
SO3 + H2O = H2SO4;

2. Sulfur oxide (+4) gives sulfurous acid:
SO2 + H2O = H2SO3;

3. Phosphorus oxide (+5) gives orthophosphoric acid:
P2O5 + H2O = H3PO4;

4. Nitric oxide (+5) gives nitric acid:
N2O5 + H2O = HNO3;

5. Manganese oxide (+7) gives manganic acid:
Mn2O7 + H2O = HMnO4.