436 prompts matching "Exam practice: Removing permanent hardness by chemical and ion-exchange methods"
Calculation practice: Calculating percentage recovery after a separation
Act as my SS1 Chemistry tutor. Walk me through calculating percentage recovery after a sep
Project task: Separating sand from salt at home
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Quiz me: Simple distillation and what it separates
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Explain back: Fractional distillation and the fractionating column
I have just studied fractional distillation and the fractionating column in my SS1 Chemist
Calculation practice: Reading a distillation temperature curve
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Quiz me: Paper chromatography and how it is carried out
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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
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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Quiz me: The nucleus and what it contains
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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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Calculation practice: Deducing valency from a given configuration
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Real-life Nigeria: Why some elements react vigorously and others hardly at all
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Chemistry at work: Electron configuration and the design of new materials
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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
Calculation practice: Working out relative molecular mass from a formula
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Real-life Nigeria: Reading chemical formulae on Nigerian packaging
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Project task: Making a reference card of symbols and radicals
Act as my SS1 Chemistry tutor. Set me a short practical or research task on making a refer
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