500 prompts matching "Calculating the mass of iron from a mass of ore"
Exam practice: Testing for nitrate and for nitrite
Act as my SS3 Chemistry teacher setting exam questions. Give me five exam-style questions
Spot my mistake: Reporting a sulphate result without acidifying first
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Exam practice: Recording and averaging concordant titres
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Spot my mistake: Using hydrochloric acid to acidify a permanganate titration
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Chemistry at work: Redox titration in Nigerian industrial testing
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Calculation practice: Applying Faraday's laws to an electrolysis calculation
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Chemistry at work: Electrolysis in Nigerian aluminium and chlorine production
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Exam practice: Applying Le Chatelier's principle to industrial processes
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Spot my mistake: Including a pure solid in an equilibrium expression
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Spot my mistake: Using bond enthalpies for a reaction involving liquids
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Chemistry at work: Functional groups in Nigerian pharmaceuticals
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Explain back: Electrochemistry reviewed
I have just studied electrochemistry reviewed in my SS3 Chemistry class. Let me explain it
Spot my mistake: Assuming every fuel burns to carbon dioxide and water alone
Act as my SS3 Chemistry tutor. Show me a worked answer on assuming every fuel burns to car
Explain back: How a soap molecule lifts away dirt
I have just studied how a soap molecule lifts away dirt in my SS3 Chemistry class. Let me
Spot my mistake: Expecting a detergent to fail in hard water as soap does
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Spot my mistake: Assuming every coloured substance is a dye
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Exam practice: Galvanising, sacrificial protection and cathodic protection
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Explain back: Acid rain, its chemistry and its effects
I have just studied acid rain, its chemistry and its effects in my SS3 Chemistry class. Le
Exam practice: Heavy metal pollution and its effects on health
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Spot my mistake: Treating carbon dioxide as a toxic pollutant
Act as my SS3 Chemistry tutor. Show me a worked answer on treating carbon dioxide as a tox