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Identifying Gases

Identifying Gases. Hydrogen, Oxygen & Carbon Dioxide. Hydrogen Gas. Chemical formula: H 2 Positive test – insert a burning splint into a test tube of gas, if there is ‘pop’ the gas is hydrogen. Oxygen Gas. Chemical formula: O 2

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Identifying Gases

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  1. Identifying Gases Hydrogen, Oxygen & Carbon Dioxide

  2. Hydrogen Gas • Chemical formula: H2 • Positive test – insert a burning splint into a test tube of gas, if there is ‘pop’ the gas is hydrogen

  3. Oxygen Gas • Chemical formula: O2 • Positive test – light a splint, then blow it out so there is a glowing ember on the end, insert the glowing splint into the gas, if the splint bursts into flames, the gas is oxygen

  4. Carbon dioxide • Chemical formula: CO2 • Positive test – insert a burning splint into a test tube of gas, if the flame goes out then the gas is carbon dioxide

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