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Introducing chemical reactions

Introducing chemical reactions

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Question 9

What is the relative formula mass of sodium bromide, $NaBr\text{NaBr}$ ?

Relative atomic mass ( $ArA_{\text{r}}$ ): $Na=23.0\text{Na} = 23.0$ $Br=79.9\text{Br} = 79.9$

A

$Na=23.0\text{Na} = 23.0$

B

$102.9$

C

$125.9$

D

$159.8$

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.

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