500 prompts matching "Describing starch and cellulose as the same polymer"
Exam practice: The laboratory preparation of hydrogen
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Quiz me: Separating the components of air
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Calculation practice: Calculating the volume of oxygen used in a reaction
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Quiz me: Symbols, formulae and equations reviewed
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Spot my mistake: The errors most often made in second-term SS1 Chemistry
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Quiz me: Electrolytes and non-electrolytes
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Practice set: The electrolysis of acidified water
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Exam practice: The factors that determine which ion is discharged
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Spot my mistake: Confusing the anode with the cathode
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Quiz me: Oxidation and reduction in terms of hydrogen
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Explain back: Oxidation and reduction in terms of electrons
I have just studied oxidation and reduction in terms of electrons in my SS1 Chemistry clas
Quiz me: Ionic bonding and how it forms
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Practice set: Drawing dot-and-cross diagrams
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Explain back: Activation energy and what it represents
I have just studied activation energy and what it represents in my SS1 Chemistry class. Le
Practice set: Enthalpy change and its sign convention
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Exam practice: Heat of reaction, of neutralisation and of combustion
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Spot my mistake: Giving an exothermic change a positive enthalpy
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Calculation practice: Calculating the heat evolved in a reaction
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Quiz me: Diamond and graphite compared
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Exam practice: The uses of each allotrope of carbon
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