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Air quality and climate

What is the percentage composition of nitrogen and oxygen in clean, dry air?

A
  • 50% Nitrogen
  • 49% Oxygen
B
  • 70% Nitrogen
  • 29% Oxygen
C
  • 21% Nitrogen
  • 78% Oxygen
D
  • 78% Nitrogen
  • 21% Oxygen

Air quality and climate Flashcards

  1. IGCSE
  2. /Chemistry
  3. /Air quality and climate

Flashcards for CIE IGCSE Chemistry Air quality and climate, covering the key terms, formulae and methods you need to recall for Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended), plus Paper 5 or Paper 6. 21 cards, matched to the CIE IGCSE Chemistry (0620) specification.

Flashcards