Answer the following question:
Metals react with oxygen to form metallic oxides, while non-metals react with bases to form salts and water.
1. What type of oxide is formed when magnesium reacts with oxygen?
2. Non-metallic oxides generally react with:
3. Which gas is released when a non-metallic oxide reacts with a base?
4. The general reaction of a metallic oxide can be summarised as: