Edexcel IGCSE Chemistry · Spec 2.9-2.12
Air Composition, Combustion in Oxygen and Carbonate Decomposition
Covers recall the main gases in dry air, Describe three elements burning in oxygen and Explain the thermal decomposition of copper carbonate.
Chemistry revision video
Air Composition, Combustion in Oxygen and Carbonate Decomposition
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Spec 2.9-2.12
What you need to know
- Recall the main gases in dry air
- Describe three elements burning in oxygen
- Explain the thermal decomposition of copper carbonate
Active recall
Quick check
Answer each question before opening the answer.
What percentage of dry air is argon?
About 0.9%
What forms when sulfur burns in oxygen?
Sulfur dioxide
What colour change occurs when copper carbonate is heated?
Green to black
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