500 prompts matching "Observing colour changes in transition metal solutions"
Exam practice: Magnetic separation and the use of a separating funnel
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Spot my mistake: Reading a chromatogram without marking the solvent front
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Calculation practice: Calculating an Rf value from measurements
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Real-life Nigeria: Chromatography in Nigerian food and drug testing
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Chemistry at work: Analytical chemistry as a career in Nigeria
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Quiz me: The nucleus and what it contains
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Explain back: How atomic number identifies an element
I have just studied how atomic number identifies an element in my SS1 Chemistry class. Let
Practice set: Working out the particles present in a given atom
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Spot my mistake: Thinking isotopes of an element react differently
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Calculation practice: Calculating relative atomic mass from isotope abundances
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Real-life Nigeria: Radioactive isotopes and their uses in Nigeria
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Project task: Building a chart of the first twenty atoms
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Quiz me: Writing out an electron configuration
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Explain back: The octet rule and chemical stability
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Spot my mistake: Giving an ion the same configuration as its parent atom
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Calculation practice: Deducing valency from a given configuration
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Project task: Modelling electron arrangement with counters
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Explain back: What a chemical formula tells you
I have just studied what a chemical formula tells you in my SS1 Chemistry class. Let me ex
Practice set: Writing the formulae of simple binary compounds
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Spot my mistake: Writing a formula without balancing the charges
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