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WorksheetsChemistry IGCSE Chapter 1 Planet Earth Quiz 1
Total questions: 20
Worksheet time: 11mins
Renewable sources
coal
natural gas
solar energy
wind energy
Potentially-renewable resources
water
fresh air
carbon
fossil fuels
Non-renewable resources
biomass
oil
coal
minerals
natural gas
Respiration is:
glucose + oxygen --> carbon dioxide + water + energy
glucose + oxygen --> carbon dioxide + water
carbon dioxide + water --> glucose + oxygen
carbon dioxide + water + energy--> glucose + oxygen
Combustion is:
fuel + carbon dioxide --> water + oxygen
fuel + oxygen -> carbon dioxide + energy
fuel + oxygen --> carbon dioxide + water
fuel + water --> energy + carbon dioxide
Products of Heating of limestone (calcium carbonate)
calcium oxide + carbonate
calcium carbonate + oxygen
calcium hydroxide + carbon dioxide
calcium oxide + carbon dioxide
Photosynthesis:
glucose + oxygen --> carbon dioxide + water + sunlight
carbon dioxide + water + sunlight --> glucose + oxygen
carbon dioxide + water --> glucose + oxygen
carbon dioxide + glucose + sunlight --> oxygen + water
How is CO2 removed from the atmosphere
decomposers break down dead organisms
haber process
combustion
by dissolving in water
Haber Process
natural process where nitrogen gas in converted into ammonia which is used to make fertilisers
man-made process where nitrogen gas in converted into ammonia which is used to make fertilisers
man-made process where carbon n converted into ammonia which is used to make fertilisers
