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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-EM-0011 markL1 FoundationCalculatorDefinitions
Which is an element?
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-EM-0021 markL1 FoundationCalculatorDefinitions
Which is a mixture?
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-EM-0031 markL1 FoundationCalculatorDefinitions
A compound contains
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-EM-0041 markL1 FoundationCalculatorDefinitions
How many different elements are in CaCO3\mathrm{CaCO_3}?

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Salam Academy Original Practice · Proposed mark scheme
SA-OC-EM-0051 markL1 FoundationCalculatorDefinitions
How many atoms are in one formula unit of CaCO3\mathrm{CaCO_3}?

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Salam Academy Original Practice · Proposed mark scheme
SA-OC-EM-0121 markL1 FoundationCalculatorDefinitions
Mixtures can be separated by
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-EM-0061 markL2 StandardCalculatorPurity
A pure substance
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-EM-0071 markL2 StandardCalculatorPurity
Adding salt to water
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-EM-0081 markL2 StandardCalculatorDefinitions
Iron filings and sulfur powder are mixed. Which method separates them?
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-EM-0091 markL2 StandardCalculatorDefinitions
When iron and sulfur are heated together they form iron(II) sulfide. Which is true of the product?
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-EM-0101 markL2 StandardCalculatorPurity
A sample of water boils at 102 ∘C102\,^\circ\mathrm{C} at normal pressure. This suggests it
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Salam Academy Original Practice · Proposed mark scheme
SA-OC-EM-0111 markL3 ExamCalculatorPurity
Which melting point data show the purest sample of a compound that melts at 122 ∘C122\,^\circ\mathrm{C}?
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Salam Academy Original Practice · Proposed mark scheme