483 prompts matching "Concentrating an ore before extraction"
Exam practice: Neutralisation and the reaction it describes
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Calculation practice: Titration calculations and finding an unknown concentration
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Exam practice: The trend in metallic and non-metallic character
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Calculation practice: Predicting a property from an element's position
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Explain back: Evaporation, crystallisation and distillation
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Practice set: Fractional distillation and what it separates
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Exam practice: Chromatography and how it works
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Explain back: Water as a solvent, and the solutions it forms
I have just studied water as a solvent, and the solutions it forms in my SS1 Chemistry cla
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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Exam practice: Combustion and the conditions it requires
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Spot my mistake: Treating air as a compound rather than a mixture
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Practice set: Acids, bases and salts reviewed
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Exam practice: The periodic table and separation techniques reviewed
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Explain back: The electrodes, and what happens at each of them
I have just studied the electrodes, and what happens at each of them in my SS1 Chemistry c
Spot my mistake: Confusing the anode with the cathode
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Calculation practice: Faraday's laws and the quantity of electricity
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Explain back: Oxidation and reduction in terms of electrons
I have just studied oxidation and reduction in terms of electrons in my SS1 Chemistry clas
Practice set: Oxidation numbers and how to assign them
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