Test For Ions And Gases

Question 1

5 tests for common gases

Answer 1

Chlorine - turns litmus paper white
Oxygen - relights glowing splint
Carbon dioxide - turns limewater cloudy
Hydrogen - makes 'squeaky pop' with a lighted splint
Ammonia - turns litmus paper blue

Question 2

4 flame tests to identify metal ions

Answer 2

Lithium: crimson red flame
Sodium: yellow orange flame
Potassium: lilac flame
Calcium: brick red flame