500 prompts matching "Exam practice: A final mixed paper before the examination"
Chemistry at work: Distillation in the Nigerian refining industry
Act as my SS1 Chemistry tutor. Explain which Nigerian jobs and industries depend on distil
Explain back: The Rf value and what it tells you
I have just studied the Rf value and what it tells you in my SS1 Chemistry class. Let me e
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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Calculation practice: Calculating relative atomic mass from isotope abundances
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Project task: Building a chart of the first twenty atoms
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Chemistry at work: The historical models of the atom compared
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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
Act as my SS1 Chemistry tutor. Walk me through deducing valency from a given configuration
Chemistry at work: Electron configuration and the design of new materials
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Spot my mistake: Writing a formula without balancing the charges
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Calculation practice: Working out relative molecular mass from a formula
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Chemistry at work: The international agreement behind chemical symbols
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Explain back: The state symbols and what each of them means
I have just studied the state symbols and what each of them means in my SS1 Chemistry clas
Calculation practice: Checking that an equation balances by counting atoms
Act as my SS1 Chemistry tutor. Walk me through checking that an equation balances by count
Explain back: How position in the table relates to electron configuration
I have just studied how position in the table relates to electron configuration in my SS1
Spot my mistake: Placing hydrogen wrongly in the periodic table
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Chemistry at work: How the periodic table came to be arranged as it is
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Explain back: Covalent bonding and the sharing of electrons
I have just studied covalent bonding and the sharing of electrons in my SS1 Chemistry clas