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Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-OC-FE-0011 markL1 FoundationCalculatorFormulae
The formula of calcium hydroxide is
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0021 markL1 FoundationCalculatorBalancing
Balance: _ H2+O2→2H2O\mathrm{\_\,H_2+O_2\rightarrow 2H_2O}. What number goes in front of H2\mathrm{H_2}?

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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0041 markL1 FoundationCalculatorFormulae
The formula of ammonium sulfate is
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0051 markL1 FoundationCalculatorBalancing
The state symbol for a substance dissolved in water is
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0121 markL1 FoundationCalculatorBalancing
When balancing equations you may change
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0031 markL2 StandardCalculatorBalancing
Balance: N2+_ H2→2NH3\mathrm{N_2+\_\,H_2\rightarrow 2NH_3}. What number goes in front of H2\mathrm{H_2}?

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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0061 markL2 StandardCalculatorBalancing
Balance: C3H8+_ O2→3CO2+4H2O\mathrm{C_3H_8+\_\,O_2\rightarrow 3CO_2+4H_2O}. What number goes in front of O2\mathrm{O_2}?

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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0071 markL2 StandardCalculatorIonic equations
The ionic equation for any acid–alkali neutralisation is
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0081 markL2 StandardCalculatorIonic equations
In AgNO3(aq)+NaCl(aq)→AgCl(s)+NaNO3(aq)\mathrm{AgNO_3(aq)+NaCl(aq)\rightarrow AgCl(s)+NaNO_3(aq)}, the spectator ions are
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0091 markL2 StandardCalculatorFormulae
How many oxygen atoms are shown in 2Ca(NO3)2\mathrm{2Ca(NO_3)_2}?

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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0101 markL2 StandardCalculatorBalancing
Which equation is balanced?
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-FE-0112 marksL3 ExamCalculatorBalancing
Balance: _ Fe2O3+_ CO→_ Fe+_ CO2\mathrm{\_\,Fe_2O_3+\_\,CO\rightarrow \_\,Fe+\_\,CO_2} with smallest whole numbers, taking 1 Fe2O3\mathrm{Fe_2O_3}. What is the coefficient of CO\mathrm{CO}?

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Salam Academy Original Practice · Proposed mark scheme