0654.C3.1.03 — Deduce the formula of a simple molecular 6 Deduce the formula of an ionic compound compound from the relative numbers of from the relative n: past paper questions
Real questions on 0654.c3.1.03 — deduce the formula of a simple molecular 6 deduce the formula of an ionic compound compound from the relative numbers of from the relative n
The newest 12 of 12 written questions. Open one to see it on the real paper.
- 0973/41 · May/June 2024 · Q2a(i)[1]
Determine the formula of magnesium sulfate. formula =
See it on the paper → - 0973/41 · May/June 2024 · Q5a(i)[1]
Deduce the formula of lithium chloride. formula =
See it on the paper → - 0973/32 · May/June 2023 · Q11c(i)[1]
State the number of different elements shown in this formula.
See it on the paper → - 0973/32 · May/June 2023 · Q11c(ii)[1]
State the total number of atoms shown in this formula.
See it on the paper → - 0973/32 · May/June 2022 · Q2b(i)[1]
State the chemical formula of the gas made.
See it on the paper → - 0973/32 · May/June 2022 · Q11d[1]
Deduce the formula of molecule P.
See it on the paper → - 0973/32 · May/June 2022 · Q11e[2]
Fig. 11.2 shows an incomplete dot-and-cross diagram for molecule R. Complete Fig. 11.2. Show the outer-shell electrons only. H H C H H Fig. 11.2
See it on the paper → - 0973/41 · May/June 2022 · Q8e[1]
Magnesium chloride contains the ions Mg 2+ and Cl – . Determine the formula of magnesium chloride. formula =
See it on the paper → - 0973/41 · October/November 2021 · Q11c[1]
Iron pyrites is an ionic compound. Fig. 11.1 shows a structure for iron pyrites. Key Fe S Fig. 11.1 Determine the formula of iron pyrites using Fig. 11.1. formula =
See it on the paper → - 0973/42 · May/June 2020 · Q11a[1]
Ammonium sulfate contains the ions NH 4+ and SO 42– . Determine the formula of ammonium sulfate.
See it on the paper → - 0973/41 · October/November 2019 · Q2c(iii)[2]
Magnesium nitride contains magnesium ions, Mg 2+ , and nitride ions, N 3– . Deduce the formula of magnesium nitride. Explain your answer. formula explanation
See it on the paper → - 0973/31 · May/June 2019 · Q11a[4]
State which of the molecules in Fig. 11.1 are hydrocarbons are alkanes is unsaturated is ethanol. You may use each letter once, more than once or not at all.
See it on the paper →
What examiners said
Some candidates gave the correct formula for magnesium chloride.
— Examiner report, May/June 2022, 0973/41 Q8(e) (Cambridge)
All answers were fairly well known. Few candidates gained full credit.
— Examiner report, May/June 2019, 0973/31 Q11(a) (Cambridge)
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