gases in the atmosphere Flashcards by Elis Knowles | Brainscape

Q

% of nitrogen in the atmosphere

A

78%

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Q

% of oxygen in the atmosphere

A

21%

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Q

% of argon in the atmosphere

A

0.93%

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Q

% of carbon dioxide in the atmosphere

A

0.035%

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Q

how would you work out the % of oxygen in the air

A

reacting oxygen with iron

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Q

observation when sulfur reacts with oxygen

A

colourless gas

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Q

observation when magnesium reacts with oxygen

A

bright white light

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Q

observation when hydrogen reacts with oxygen

A

explosion

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Q

how is carbon dioxide formed

A

thermal decomposition of metal carbonates

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