473 prompts matching "What causes temporary and what causes permanent hardness"
Exam practice: Acid rain, its formation and its effects
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Quiz me: Soaps and detergents, and how they clean
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Practice set: Drugs and medicines and their chemical basis
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Exam practice: Fertilisers and their effect on crop yield
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Real-life Nigeria: Household chemicals and their safe use in Nigeria
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Teach me: Electrolysis and redox reactions reviewed
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Practice set: Carbon and its compounds reviewed
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Exam practice: Fertiliser and how it is manufactured in Nigeria
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Quiz me: Homogeneous and heterogeneous mixtures
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Practice set: Decantation, and when it is appropriate
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Exam practice: Evaporation to dryness and its limitations
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Teach me: Crystallisation, and how it purifies a solid
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Teach me: Chromatography and the principle behind it
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Quiz me: Paper chromatography and how it is carried out
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Exam practice: Magnetic separation and the use of a separating funnel
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Real-life Nigeria: Chromatography in Nigerian food and drug testing
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Teach me: The subatomic particles and the charge each carries
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Real-life Nigeria: Radioactive isotopes and their uses in Nigeria
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Teach me: Electron shells and the maximum each can hold
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Exam practice: Ionisation and the formation of cations and anions
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