Chemistry · May / June 2025 · Paper 62 · Question 1
0620
As printed in the paper
The question as text
When heated, magnesium reacts with steam to make magnesium oxide and hydrogen gas. Fig. 1.1 shows the apparatus a teacher uses to react clean magnesium ribbon with steam and collect the hydrogen gas produced. A X clean magnesium ribbon water and mineral wool Fig. 1.1
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
1(a)[1]
(gas) syringe
1(b)[1]
(rub with) sand / emery / abrasive paper
1(c)[1]
to hold / absorb the water / to prevent the water running along the tube
1(d)[2]
The answer is a drawing: see the picture of this mark scheme row.
1(e)[1]
water / H2O
1(f)[1]
contains air (that was in the apparatus at the start)
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