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Introducing chemical reactions

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Question 41

Magnesium carbonate, $MgCO3\text{MgCO}_3$ , decomposes when heated to form magnesium oxide, $MgO\text{MgO}$ , and carbon dioxide gas, $CO2\text{CO}_2$ .

\text{MgCO}_3 \rightarrow \text{MgO} + \text{CO}_2

If $g21.0\text{ g}$ of magnesium carbonate decomposes to make $g10.0\text{ g}$ of magnesium oxide, what mass of carbon dioxide gas is produced?

[3]

Markscheme

Introducing chemical reactions Questions

GCSE
Chemistry
Introducing chemical reactions

55 exam-style questions on OCR GCSE Chemistry Introducing chemical reactions. Each one has a worked solution and a mark scheme showing where the marks go.

Introducing chemical reactions

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Introducing chemical reactions

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

Question 41

Magnesium carbonate, $MgCO3\text{MgCO}_3$ , decomposes when heated to form magnesium oxide, $MgO\text{MgO}$ , and carbon dioxide gas, $CO2\text{CO}_2$ .

\text{MgCO}_3 \rightarrow \text{MgO} + \text{CO}_2

If $g21.0\text{ g}$ of magnesium carbonate decomposes to make $g10.0\text{ g}$ of magnesium oxide, what mass of carbon dioxide gas is produced?

[3]

Markscheme

Introducing chemical reactions Questions

GCSE
Chemistry
Introducing chemical reactions

55 exam-style questions on OCR GCSE Chemistry Introducing chemical reactions. Each one has a worked solution and a mark scheme showing where the marks go.