Oxygen and Carbon Dioxide Flashcards Preview

Chemistry ( 9 The Atmosphere ) > Oxygen and Carbon Dioxide > Flashcards

Flashcards in Oxygen and Carbon Dioxide Deck (5)
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1
Q

what are the 3 more popular elements that react with oxygen

A

1) Magnesium - burns with a very bright white flame
2) Sulfur - burns with a blue coloured flame
3) Hydrogen - squeaky pop

2
Q

give an example of a carbonate that decomposes easily to form carbon dioxide

A

copper(II) Carbonate

3
Q

what happens to copper(II) Carbonate when it burns and what is the equation for this reaction

A

It breaks down into copper oxide and carbon dioxide

1) Copper carbonate → copper oxide + carbon dioxide
CuCO3 → CuO + CO2

4
Q

what’s the colour change during the burning reaction

A

copper carbonate is GREEN and copper oxide is BLACK

5
Q

what’s the test for carbon dioxide

A

Bubble through, or shake carbon dioxide with, an aqueous solution of calcium hydroxide (also called lime water).

The solution will turn from colourless to cloudy.