484 prompts matching "Refining and purifying an extracted metal"
Exam practice: The volume one mole of any gas occupies at s.t.p.
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Calculation practice: Calculating a new volume after a change of pressure
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Teach me: What stoichiometry means
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Quiz me: Reading mole ratios from a balanced equation
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Practice set: Calculating the mass of product from the mass of reactant
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Spot my mistake: Using an unbalanced equation in a stoichiometry calculation
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Calculation practice: Calculating the concentration of an acid solution
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Practice set: Making an insoluble salt by mixing two solutions
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Teach me: How the periodic table is arranged
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Calculation practice: Predicting a property from an element's position
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Spot my mistake: Confusing temporary hardness with permanent hardness
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Spot my mistake: Treating air as a compound rather than a mixture
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Spot my mistake: Confusing the anode with the cathode
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Spot my mistake: Assigning an oxidation number to the wrong atom
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Calculation practice: Balancing a redox equation by oxidation number
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Chemistry at work: Redox reactions in Nigerian industry
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Spot my mistake: Giving an exothermic change a positive enthalpy
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Teach me: What the rate of a reaction means
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Calculation practice: Calculating an average rate from experimental data
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Spot my mistake: Assuming every chemical plant makes the same kind of product
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