0654.C3.1.01 — State the formulas of the elements and compounds named in the subject content: past paper questions
Real questions on 0654.c3.1.01 — state the formulas of the elements and compounds named in the subject content
The newest 5 of 5 written questions. Open one to see it on the real paper.
- 0973/31 · October/November 2022 · Q8d(iii)[1]
State the symbols of both copper and zinc. copper symbol zinc symbol
See it on the paper → - 0973/32 · May/June 2022 · Q5b(iii)[2]
The formula of copper( II ) sulfate is CuSO 4 . State the number of different elements and the total number of atoms shown in this formula. number of elements number of atoms
See it on the paper → - 0973/32 · May/June 2022 · Q11c[1]
Molecule S is a compound made from the two elements carbon and hydrogen. State what is meant by a compound.
See it on the paper → - 0973/31 · May/June 2021 · Q8a[1]
Fig. 8.1 shows three molecules A, B and C. H H H C C H H H A B H O H H C H H H C C H H C Fig. 8.1 State the formula of the substance that reacts with molecule C to make molecule A.
See it on the paper → - 0973/31 · May/June 2021 · Q8b[2]
Molecule B, CH 4 , is methane which is a compound. Methane contains the elements carbon and hydrogen. Use this information to explain the difference between an element and a compound.
See it on the paper →
What examiners said
Water, H2O, was not well known as the substance that reacts with ethene to make ethanol.
— Examiner report, May/June 2021, 0973/31 Q8(a) (Cambridge)
Many candidates had some understanding of the terms but missed marks by describing one atom rather than one type of atom for the description of an element and referring to compounds as mixtures rather than elements bonded together.
— Examiner report, May/June 2021, 0973/31 Q8(b) (Cambridge)
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