445 prompts matching "Isotopes, and why they exist"
Exam practice: The amines, and why they behave as weak bases
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Teach me: The functional group, and why it governs behaviour
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Practice set: Soapless detergents and how they differ from soap
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Explain back: The chromophore, and why a dye is coloured
I have just studied the chromophore, and why a dye is coloured in my SS3 Chemistry class.
Practice set: The greenhouse gases and the warming they cause
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Real-life Nigeria: Radioisotopes in medicine, industry and dating
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Spot my mistake: The topics I keep getting wrong, and why
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Quiz me: Atomic number, mass number and isotopes
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Teach me: Why a bond forms, and what holds it together
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Real-life Nigeria: Buffer solutions and how they resist a change in pH
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Exam practice: The salts that do not hydrolyse, and why
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Quiz me: Addition polymers and the monomers they come from
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Explain back: Variable oxidation state, and why it arises
I have just studied variable oxidation state, and why it arises in my SS3 Chemistry class.
Chemistry at work: Why the mole underpins all quantitative chemistry
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Explain back: The flame test and the colours it gives
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Spot my mistake: Adding excess reagent too early and losing a precipitate
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Chemistry at work: Recording observations and inferences in the WAEC format
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Quiz me: Testing for carbonate and for hydrogencarbonate
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Explain back: Testing for sulphate and for sulphite
I have just studied testing for sulphate and for sulphite in my SS3 Chemistry class. Let m
Practice set: Testing for chloride, bromide and iodide
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