391 prompts matching "Exam practice: Identifying cations with aqueous ammonia"
Practice set: Hard and soft water, and the causes of hardness
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Spot my mistake: Confusing temporary hardness with permanent hardness
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Practice set: The properties and uses of oxygen
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Practice set: Acids, bases and salts reviewed
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Practice set: The electrolysis of acidified water
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Spot my mistake: Confusing the anode with the cathode
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Practice set: Oxidation numbers and how to assign them
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Practice set: Drawing dot-and-cross diagrams
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Practice set: Enthalpy change and its sign convention
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Practice set: The effect of temperature and surface area on rate
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Practice set: Amorphous carbon and the forms it takes
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Practice set: Carbonates and hydrogencarbonates
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Practice set: Soil pollution and the effects it has
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Spot my mistake: Confusing the greenhouse effect with ozone depletion
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Practice set: Drugs and medicines and their chemical basis
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Practice set: Carbon and its compounds reviewed
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Practice set: Cement production in Nigeria
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Practice set: Decantation, and when it is appropriate
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Practice set: Separating a mixture of two miscible liquids
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Spot my mistake: Using simple distillation on liquids with close boiling points
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