Testing and preparing common gases
- Created by: Upforrevising
- Created on: 11-12-12 18:49
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- Preparing, collecting and testing common gases
- Hydrogen
- Acid + metal => salt+ hydrogen
- Collection
- over water
- UP into a gas jar
- low density gas
- into a gas syringe
- Test
- "squeaky pop" with a lighted splint
- Oxygen
- Decomposition of H2O2 with a catalyst
- Test
- Relights a glowing splint
- Collect
- over water
- DOWN into a gas jar
- into a gas syringe
- Carbon Dioxide
- Acid + carbonate => salt + water + CO2
- Test
- limewater, clear to cloudy white
- Collection
- over water
- DOWN into a gas jar
- into a gas jar
- Hydrogen
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