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Calculations involving masses

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Question 35

2.08 g of chromium combines with 0.96 g of oxygen to form an oxide of chromium.

Determine the formula of this oxide of chromium and use it to complete the balanced equation.

Relative atomic masses ( $A_r$ ): $Cr=52.0\text{Cr} = 52.0$ , $O=16.0\text{O} = 16.0$

You must show your working.

Balanced equation for the reaction:

\text{..... Cr} + \text{..... O}_2 \rightarrow \text{.....}

[4]

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 35

2.08 g of chromium combines with 0.96 g of oxygen to form an oxide of chromium.

Determine the formula of this oxide of chromium and use it to complete the balanced equation.

Relative atomic masses ( $A_r$ ): $Cr=52.0\text{Cr} = 52.0$ , $O=16.0\text{O} = 16.0$

You must show your working.

Balanced equation for the reaction:

\text{..... Cr} + \text{..... O}_2 \rightarrow \text{.....}

[4]

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.