Chemistry
- Created by: Natasha Granville
- Created on: 25-04-16 18:46
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Clues
- Carbon dioxide, methane and water vapour are examples of what? (10, 5)
- Crude oil is a mixtue of what? (12)
- Glass is made by heating limestone with sand and what else? (6, 9)
- I am a gas. I am a product of incomplete combustion, I am colourless, odourless, toxic and can reduce the oxygen carrying ability of red blood cells. What am I? (6, 8)
- If water is added to calcium oxide, what is formed? (7, 9)
- Marble, chalk and limestone are natural forms of what? (7, 9)
- Most polymers persist in landfill sites because they are not... (13)
- What gas did the earth's early atmosphere mainly contain? (6, 7)
- What gas dissolves in rainwater to form acid rain? (6, 7)
- What process released oxygen, forming our atmosphere today? (14)
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