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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Relative masses of atoms and molecules

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Relative masses of atoms and molecules

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Paper 3Theory (Core)2 marks

Calculating masses in a chemical reaction.

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Mass Calculation in Reaction

In a reaction, 4g of substance A reacts with 6g of substance B to produce substance C. Calculate the mass of substance C produced.

  1. a

    Calculate the mass of substance C produced.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Relative masses of atoms and molecules

Paper 3Theory (Core)2 marks

Description

Masses in Chemical Reaction

If 5g of reactant X produces 8g of product Y, how much reactant X is needed to produce 16g of product Y?

  1. a

    Determine the mass of reactant X needed to produce 16g of product Y.

    Aim for approximately 2 distinct marking points.

    [2]