250 prompts matching "Why the noble gases are unreactive"
Calculation practice: Working out the repeating unit from a polymer structure
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Quiz me: The fractions obtained from crude oil
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Exam practice: The uses of each petroleum fraction
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Calculation practice: Calculating the yield of a named fraction
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Real-life Nigeria: Nigeria's refineries and the problems they face
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Chemistry at work: The petrochemicals made from oil and gas
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Quiz me: The raw materials for ammonia manufacture
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Practice set: The properties and the test for ammonia
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Spot my mistake: Proposing a higher temperature to raise the ammonia yield
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Calculation practice: Calculating the mass of fertiliser from a mass of ammonia
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Quiz me: The reactions occurring inside the blast furnace
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Explain back: The role of limestone and the removal of slag
I have just studied the role of limestone and the removal of slag in my SS2 Chemistry clas
Practice set: Turning pig iron into steel in the converter
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Exam practice: Mild, medium and high carbon steel, and the use of each
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Spot my mistake: Describing limestone as the reducing agent
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Calculation practice: Calculating the mass of iron from a mass of ore
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Real-life Nigeria: The Ajaokuta steel project and Nigerian steel
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Spot my mistake: Balancing a nuclear equation without checking the mass number
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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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