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Question 56

Calcium burns in excess oxygen to form calcium oxide.

The balanced equation for this reaction is:

2\text{Ca} + \text{O}_2 \rightarrow 2\text{CaO}

Starting with 3.00 g of calcium, calculate the maximum mass of calcium oxide that could be formed in this reaction.

(Relative atomic masses, $A_r$ : $O=16.0\text{O} = 16.0$ , $Ca=40.0\text{Ca} = 40.0$ )

You must show your working.

[3]

Markscheme

Calculations involving masses Questions

GCSE
Chemistry
Calculations involving masses

258 exam-style questions on Edexcel GCSE Chemistry Calculations involving masses. Each one has a worked solution and a mark scheme showing where the marks go.

Calculations involving masses

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Calculations involving masses

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Question 56

Calcium burns in excess oxygen to form calcium oxide.

The balanced equation for this reaction is:

2\text{Ca} + \text{O}_2 \rightarrow 2\text{CaO}

Starting with 3.00 g of calcium, calculate the maximum mass of calcium oxide that could be formed in this reaction.

(Relative atomic masses, $A_r$ : $O=16.0\text{O} = 16.0$ , $Ca=40.0\text{Ca} = 40.0$ )

You must show your working.

[3]

Markscheme

Calculations involving masses Questions

GCSE
Chemistry
Calculations involving masses

258 exam-style questions on Edexcel GCSE Chemistry Calculations involving masses. Each one has a worked solution and a mark scheme showing where the marks go.