C8 - Tests for gases
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9 Terms
How do you test for chlorine gas
Expose it to damp blue litmus paper
What happens when damp blue litmus paper is exposed to chlorine gas?
The damp litmus paper turns red, then bleaches white
What safety precautions are required for testing chlorine gas?
Wear a gas mask
Do the experiment in a fume cupboard
How do you test for oxygen gas?
Expose it to a glowing splint
What happens when a glowing splint is exposed to oxygen gas?
The glowing splint will relight
How do you test for hydrogen gas?
Expose it to a lit splint
What happens when hydrogen gas is exposed to a lit splint?
There is a squeaky pop sound
How do you test for carbon dioxide gas?
Bubble it through limewater
What happens when you bubble carbon dioxide gas through limewater?
The limewater turns cloudy