This question is about magnesium, magnesium oxide and magnesium sulfate. Magnesium sulfate can be made by reacting magnesium with dilute sulfuric acid. (i) Write an equation for the reaction that occurs. Include state symbols in your answer. (2) (ii) Give two observations you would make when the reaction is taking place. (2) ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................

Chemistry
IGCSE&ALevel
EDEXCEL
Exam No:wch11-01-que-20240111 Year:2024 Question No:20(d)

Answer:

Example of equation
\[
\mathrm{Mg}(\mathrm{~s})+\mathrm{H}_{2} \mathrm{SO}_{4}(\mathrm{aq}) \longrightarrow \mathrm{MgSO}_{4}(\mathrm{aq})+\mathrm{H}_{2}(\mathrm{~g})
\]

- correct balanced equation
- correct state symbols
An answer that makes reference to the following points:
- bubbles (of gas)/ fizzing/ effervescence
- Mg disappears/ disintegrates /gets smaller /dissolves OR mixture gets warmer/ temperature increase

Knowledge points:

1.Formulae, Equations and Amount of Substance

Solution:

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