250 prompts matching "What an acid is, and how acids behave"
Exam practice: The structures of diamond, graphite and silica
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Real-life Nigeria: Alloys, and the reasons they are made
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Practice set: Assigning oxidation numbers in compounds and in ions
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Spot my mistake: Assigning an oxidation number without checking the overall charge
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Explain back: Why oxidation and reduction always occur together
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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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Real-life Nigeria: Redox in Nigerian bleaching and water treatment
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Explain back: Why metals conduct heat and electricity
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Practice set: Density, melting point and hardness across the metals
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Real-life Nigeria: Nigeria's metal deposits and their exploitation
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Practice set: The chemical behaviour of metals and non-metals compared
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Explain back: The preparation and properties of chlorine
I have just studied the preparation and properties of chlorine in my SS2 Chemistry class.
Practice set: Making sulphur dioxide in the laboratory and testing it
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Real-life Nigeria: Electroplating and metal purification in Nigeria
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Explain back: Metals and their extraction reviewed
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Practice set: Non-metals and their compounds reviewed
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Real-life Nigeria: Linking bonding, structure and properties together
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Real-life Nigeria: Buffer solutions and where they matter
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Spot my mistake: Averaging titres that are not concordant
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