Define the following:

Amphoteric oxides

Give a reason for the following:

Metallic oxides are also known as basic oxides.

Give a reason for the following:

Why is an antacid used during indigestion and acidity?

Give a reason for the following:

Why do we consider the change of water into ice as exothermic change?

What is a chemical reaction? What are the conditions necessary for a chemical reaction?

What are decomposition reactions? Explain with an example.

What is the difference between acidic oxides and basic oxides? Write an equation for each.

What is a displacement reaction? How is it represented?