1.Arrange the following series from most acid to least acid.

a) NH₃, H₂O , HF

b) HOCl, HClO₂ , HClO₃ , HClO₄

c) X-CH₂CO₂H where X= CO₂^-1 , H , NH₄⁺¹

2. Which of these is the strongest base?

Na₂O, MgO, Fe₂O₃

3. The oxides of which of the elements are acid? amphoteric? basic? Give an example of each.

4. How will the acid anhydride SO₃ react with water? Write the balanced reaction equation.

5. How would you get the insoluble oxide MgO to go into solution?

6. How will the acid anhydride, N₂O₅ , react with water? Write the balanced reaction equation.