250 prompts matching "Forgetting to balance the equation before using mole ratios"
Calculation practice: Working out the repeating unit from a polymer structure
Act as my SS2 Chemistry tutor. Walk me through working out the repeating unit from a polym
Calculation practice: Calculating the yield of a named fraction
Act as my SS2 Chemistry tutor. Walk me through calculating the yield of a named fraction a
Chemistry at work: The petrochemicals made from oil and gas
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Explain back: Why the chosen conditions are a compromise
I have just studied why the chosen conditions are a compromise in my SS2 Chemistry class.
Practice set: The properties and the test for ammonia
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Exam practice: Converting ammonia into nitrogenous fertiliser
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Calculation practice: Calculating the mass of fertiliser from a mass of ammonia
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Calculation practice: Calculating the mass of iron from a mass of ore
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Calculation practice: Calculating the amount remaining after several half-lives
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Chemistry at work: The benefits and the hazards of nuclear chemistry
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Explain back: The soap and detergent industry in Nigeria
I have just studied the soap and detergent industry in Nigeria in my SS2 Chemistry class.
Practice set: The cement industry in Nigeria
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Spot my mistake: The errors most often made in third-term SS2 Chemistry
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Exam practice: The structures of diamond, graphite and silica
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Exam practice: Identifying the species oxidised in a reaction
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Exam practice: The common oxidising and reducing agents and their tests
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Exam practice: The reactivity series and how it is established
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Exam practice: The extraction of iron in the blast furnace
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Exam practice: The halogens as a family of non-metals
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Exam practice: The tests that identify the common non-metal gases
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