Chemistry
Chromatography practice
Chemical Analysis training and original diagnostic questions for Paper 2.
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Chromatography practice
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Make it concrete
Analogy
Chromatography is like changing a recipe: the particles, amounts and conditions decide what product you can make.
Why now: An analogy helps when the definition feels abstract.
Do this: Match each part of the analogy to the science idea.
Why it matters
Real-world use
Chromatography links to materials, fuels, medicines, pollution and resources. Example: For a longer answer, start with particles or bonding, then connect that to the observation or calculation.
Why now: Real examples make the mark-scheme words easier to remember.
Do this: Connect one key word to the example.
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