500 prompts matching "Writing the formula of a compound from valencies"
Exam practice: Working through a full anion identification
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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: Concentration, dilution and titration calculations
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Spot my mistake: Losing marks by dropping units mid-calculation
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Calculation practice: Percentage purity, yield and composition calculations
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Real-life Nigeria: Checking an answer for physical sense
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Calculation practice: Multi-step stoichiometry problems
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Real-life Nigeria: Stoichiometry in a Nigerian industrial context
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Exam practice: A full objective paper under examination conditions
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Calculation practice: A full calculation section under timed conditions
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Chemistry at work: Deciding which optional questions to attempt
Act as my SS3 Chemistry tutor. Explain which Nigerian jobs and industries depend on decidi
Chemistry at work: How spectra reveal electronic structure
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Teach me: What periodicity means
You are my personal SS3 Chemistry tutor. Teach me what periodicity means, using a real Nig
Spot my mistake: Explaining a group trend by nuclear charge alone
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Project task: Plotting a periodic property against atomic number
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Explain back: Covalent bonding, polar and non-polar
I have just studied covalent bonding, polar and non-polar in my SS3 Chemistry class. Let m
Exam practice: Metallic bonding and hydrogen bonding
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Spot my mistake: Describing a polar covalent bond as ionic
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Project task: Classifying ten given substances by bond type
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Exam practice: Concentration expressed in moles per cubic decimetre
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