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Reacting-mass ratio — Edexcel GCSE Chemistry Definition | GradeGen

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Chemistry
Key terms
Reacting-mass ratio

GCSE Chemistry · key term

Reacting-mass ratio

Definition

The ratio of the masses of substances that react or form, calculated from a balanced equation and their relative formula masses.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Chemistry · 1CH0

Specification 1.48 · Paper 1, Paper 2

Revise: Mass Calculations from Equations

Edexcel Chemistry past papers

Exam tips

1
Balance the equation before using it. An unbalanced equation gives the wrong reacting-mass ratio.

Related key terms

Balanced symbol equation
Coefficient
Relative formula mass
Stoichiometry

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