500 prompts matching "What a mixture is, and how it differs from a compound"
Explain back: Structuring an answer on extraction and manufacture
I have just studied structuring an answer on extraction and manufacture in my SS3 Chemistr
Practice set: A mixed set on metals, non-metals and their compounds
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Spot my mistake: The inorganic chemistry errors examiners see most often
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Real-life Nigeria: The tests and observations WAEC asks you to recall
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Spot my mistake: The organic chemistry errors examiners see most often
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Real-life Nigeria: Drawing and labelling organic structures correctly
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Explain back: Filling and reading a burette accurately
I have just studied filling and reading a burette accurately in my SS3 Chemistry class. Le
Exam practice: Presenting titration results in the required table
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Spot my mistake: The presentation errors that lose practical marks
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Quiz me: Mole and mass conversions under time pressure
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Practice set: Gas volume and stoichiometry calculations
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Quiz me: Converting between mass, moles, volume and particles
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Spot my mistake: Forgetting to balance the equation before using mole ratios
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Spot my mistake: Predicting a trend in the wrong direction
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Exam practice: A full objective paper under examination conditions
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Quiz me: A rapid sweep across every examined chemistry topic
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Real-life Nigeria: What to do in the last week before the examination
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Explain back: The filling of energy levels and sublevels
I have just studied the filling of energy levels and sublevels in my SS3 Chemistry class.
Exam practice: The configuration of an ion compared with that of its atom
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Spot my mistake: Filling the 3d sublevel before the 4s
Act as my SS3 Chemistry tutor. Show me a worked answer on filling the 3d sublevel before t