Gases in the atmosphere
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6 Terms
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Four main atmosphere gases
78% nitrogen
21%oxygen
nearly 1% argon
0.04% carbon dioxide
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Combustion of magnesium with oxygen
Magnesium burns with a white flame in air and the white powder is formed is magnesium oxide.
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Combustion of hydrogen with oxygen
Hydrogen has an orangey/yellow flame and the product is water vapour
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Combustion of sulfur with oxygen
Sulfur burns in air or oxygen with a blue flame
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What is thermal decomposition
When a substance breaks down into simple substances when heated
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Thermal decomposition of copper carbonate
Copper carbonate is a green powder. Heat it up using a Bunsen burner and there will black powder which is copper oxide and carbon dioxide gas
Note 
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