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Card 1 of 23

Why is magnesium oxide written MgO rather than Mg2O2?

A

Ionic formulae use the simplest whole-number ion ratio.

B

Ionic formulae use the actual number of ions present.

C

Ionic formulae use the relative masses of the ions.

D

Ionic formulae use an equal number of each ion.

Card 1 of 23

Formulae and equations Flashcards

  1. A Level
  2. /Chemistry
  3. /Formulae and equations

23 flashcards on Edexcel A Level Chemistry Formulae and equations: the key terms, definitions and equations you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards