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Gases in the atmosphere

What percentage of dry air is nitrogen?

A

About 21%.

B

About 0.9%.

C

About 0.04%.

D

About 78%.

Gases in the atmosphere Flashcards

  1. IGCSE
  2. /Chemistry
  3. /Gases in the atmosphere

Flashcards for Edexcel IGCSE Chemistry Gases in the atmosphere, covering the key terms, formulae and methods you need to recall for Paper 1 and Paper 2. 30 cards, matched to the Edexcel IGCSE Chemistry (4CH1) specification.