221 prompts matching "Ammonia, its preparation and its properties"
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.
Exam practice: The paint and textile industries in Nigeria
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Calculation practice: Calculating output and efficiency for a plant
Act as my SS2 Chemistry tutor. Walk me through calculating output and efficiency for a pla
Quiz me: Polymers, petroleum and petrochemicals reviewed
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Quiz me: The formation of an ionic bond in sodium chloride
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Practice set: The formation of a covalent bond in a simple molecule
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Spot my mistake: Predicting ionic character from electronegativity difference
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Chemistry at work: Why ionic compounds conduct only when molten or dissolved
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Spot my mistake: Explaining metallic conductivity by the movement of ions
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Quiz me: Recognising oxidation in a given equation
Act as my SS2 Chemistry tutor and quiz me on recognising oxidation in a given equation. As
Exam practice: Identifying the species oxidised in a reaction
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Spot my mistake: Assigning an oxidation number without checking the overall charge
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Calculation practice: Working out the change in oxidation number
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Practice set: Balancing a redox equation by half-equations
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Spot my mistake: Calling the oxidising agent the substance that is oxidised
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Calculation practice: Balancing a redox equation in acidic solution
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Quiz me: Where the metals sit in the periodic table
Act as my SS2 Chemistry tutor and quiz me on where the metals sit in the periodic table. A
Calculation practice: Comparing metals by a density calculation
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Practice set: Extraction by electrolysis
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Exam practice: The extraction of iron in the blast furnace
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