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Reactant in excess — Edexcel GCSE Combined Science Definition | GradeGen

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Combined Science
Key terms
Reactant in excess

GCSE Combined Science · key term

Reactant in excess

Definition

A reactant supplied in a greater amount than is needed to react completely with the limiting reactant, so some remains.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Combined Science · 1SC0

Specification Calculations involving masses · Paper 3, Paper 4

Revise: Conservation of mass and quantitative reaction relationships

Edexcel Combined Science past papers

Related key terms

Closed system
Coefficient
Conservation of mass
Limiting reactant
Precipitation reaction

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