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Chemistry GCSE Stuff
Gas Tests To Learn - Table 1
Gas | Test |
---|---|
Water (H2O) | Dry Cobalt chloride paper turns from blue to pink |
Carbon Dioxide (CO2) | Bubble gas through limewater. Turns Cloudy. |
Oxygen (O2) | Relights glowing splint |
Sulfur Oxides (SO2/3) | Litmus / Universal indicator turns red (Strongly Acidic) Also Potassium Dichromate paper goes from orange to green |
Nitrogen Dioxide (NO2) | Brown Acidic gas (Damp blue litmus paper turns red) |
Hydrogen (H2) | Lighted splint makes a squeaky pop in Hydrogen |
Hydrogen Sulfide (H2S) | Damp Lead Ethanoate paper goes from orange to green |
Chlorine (Cl2) | Bleaches damp red/blue litmus paper |
Hydrogen Chloride Gas (HCl) | Damp blue litmus paper turns red |
Ammonia (NH3) | Damp red litmus paper turns blue |