250 prompts matching "Describing starch and cellulose as the same polymer"
Practice set: Density, melting point and hardness across the metals
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Exam practice: The reactivity series and how it is established
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Spot my mistake: Assuming every metal is hard and dense
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Quiz me: The link between reactivity and the method of extraction
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Exam practice: The extraction of iron in the blast furnace
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Calculation practice: Calculating the mass of metal obtainable from an ore
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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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Exam practice: The halogens as a family of non-metals
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Chemistry at work: Metalloids, and where they sit between the two
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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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Exam practice: The tests that identify the common non-metal gases
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Calculation practice: Calculating the volume of a gas from a given mass
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Practice set: The electrolysis of brine and the products it gives
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Exam practice: The electrolysis of molten and of aqueous compounds compared
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Explain back: Metals and their extraction reviewed
I have just studied metals and their extraction reviewed in my SS2 Chemistry class. Let me
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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Explain back: The strength of an acid and the degree of ionisation
I have just studied the strength of an acid and the degree of ionisation in my SS2 Chemist