0654.C3.1.05 — Balance and interpret simple symbol 7 Construct symbol equations with state equations, including state symbols symbols, including ionic equa: past paper questions
Real questions on 0654.c3.1.05 — balance and interpret simple symbol 7 construct symbol equations with state equations, including state symbols symbols, including ionic equa
The newest 20 of 38 written questions. Open one to see it on the real paper.
- 0973/31 · May/June 2026 · Q6d(i)[1]
Complete this equation by giving the state symbols.
See it on the paper → - 0973/41 · May/June 2026 · Q6b[2]
(b) Complete the balanced symbol equation for the reaction between chlorine, Cl,, and sodium iodide, Nal. 2Nal ones Fleece ..........
See it on the paper → - 0973/41 · October/November 2025 · Q7b(i)[3]
Construct the balanced symbol equation for this reaction. Include state symbols. ( ) + ( ) ( ) + ( )
See it on the paper → - 0973/41 · October/November 2025 · Q7b(ii)[1]
Tick (✓) the correct box to identify the type of reaction that takes place. cracking neutralisation combustion
See it on the paper → - 0973/32 · May/June 2025 · Q7c(ii)[1]
State what (g) means in the equation in (c)(i). (ii)
See it on the paper → - 0973/41 · May/June 2025 · Q7c[2]
In the third stage, iron(III) oxide, Fe 2 O 3 , reacts with carbon monoxide. Iron and carbon dioxide are made. Construct the balanced symbol equation for this reaction.
See it on the paper → - 0973/31 · May/June 2024 · Q2b(iv)[1]
The word equation for the reaction between magnesium and dilute hydrochloric acid is shown. magnesium + hydrochloric acid magnesium chloride + hydrogen Complete the balanced symbol equation for this reaction. Mg + HCl MgCl + H
See it on the paper → - 0973/32 · May/June 2024 · Q8a[2]
Balance the symbol equation for this reaction. 2Na + H O NaOH + H
See it on the paper → - 0973/41 · October/November 2023 · Q2c(iii)[2]
The equation shows the cracking of C 24 H 50 . Balance the equation. C 24 H 50 C 10 H 22 + C 6 H 12 +
See it on the paper → - 0973/41 · October/November 2023 · Q5c(i)[2]
Hydrochloric acid, HCl , reacts with copper carbonate, CuCO 3 . Copper chloride, CuCl 2 , water and carbon dioxide are made. Construct the balanced symbol equation for this reaction.
See it on the paper → - 0973/32 · May/June 2023 · Q2a(i)[1]
has the formula PbBr 2 .
See it on the paper → - 0973/32 · May/June 2023 · Q2a(ii)[1]
is a salt from which ammonia can be displaced.
See it on the paper → - 0973/32 · May/June 2023 · Q5c(i)[1]
Explain why this equation is not balanced.
See it on the paper → - 0973/32 · May/June 2023 · Q5c(ii)[1]
Another way that water is made is by the decomposition of hydrogen peroxide, H 2 O 2 . Oxygen is also made. Balance the symbol equation for this reaction. H O H O + O
See it on the paper → - 0973/32 · May/June 2023 · Q11b(i)[1]
Write the word equation for the thermal decomposition of calcium carbonate.
See it on the paper → - 0973/41 · May/June 2023 · Q8a[2]
Construct the balanced symbol equation for this reaction.
See it on the paper → - 0973/31 · October/November 2022 · Q8b(i)[1]
Write the word equation for this reaction. + +
See it on the paper → - 0973/31 · October/November 2022 · Q11b[1]
Sodium reacts with chlorine to make sodium chloride. Balance the symbol equation for this reaction. Na + Cl NaCl
See it on the paper → - 0973/41 · October/November 2022 · Q8a(ii)[2]
The nitrogen monoxide, NO, made inside the car engine is removed by a catalytic converter. The nitrogen monoxide is turned into nitrogen gas and oxygen gas. Construct the balanced symbol equation for this reaction.
See it on the paper → - 0973/31 · May/June 2022 · Q11c[2]
Balance the symbol equation for the reaction between potassium and water. K + H O KOH + H
See it on the paper →
What examiners said
A significant number of candidates gave the correct answer. Others suggested grams or gravity.
— Examiner report, May/June 2025, 0973/32 Q7(c)(ii) (Cambridge)
Many candidates correctly identified the products as Fe and CO 2. The most commonly seen incorrect answer was Fe2. Fewer candidates were successful at balancing the equation.
— Examiner report, May/June 2025, 0973/41 Q7(c) (Cambridge)
Many candidates did not balance the equation for the cracking of C24H50 correctly. These candidates tried to add a hydrocarbon such as C2H4 in the space before the C6H12 rather than the number 2.
— Examiner report, October/November 2023, 0973/41 Q2(c)(iii) (Cambridge)
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