250 prompts matching "Altering subscripts in order to balance an equation"
Real-life Nigeria: The SS2 Chemistry topics I still need to practise
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Exam practice: The structures of diamond, graphite and silica
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Explain back: The rules for assigning oxidation numbers
I have just studied the rules for assigning oxidation numbers in my SS2 Chemistry class. L
Exam practice: Identifying the species oxidised in a reaction
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Exam practice: The reactivity series and how it is established
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Explain back: Extraction by reduction with carbon
I have just studied extraction by reduction with carbon in my SS2 Chemistry class. Let me
Exam practice: The extraction of iron in the blast furnace
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Explain back: The allotropes shown by some non-metals
I have just studied the allotropes shown by some non-metals in my SS2 Chemistry class. Let
Explain back: The preferential discharge of ions
I have just studied the preferential discharge of ions in my SS2 Chemistry class. Let me e
Exam practice: The electrolysis of molten and of aqueous compounds compared
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Exam practice: Electrolysis and electrochemistry reviewed
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Exam practice: The hydrolysis of salts and the pH that results
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Exam practice: The procedure for a standard acid-base titration
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Explain back: Calculating the average titre correctly
I have just studied calculating the average titre correctly in my SS2 Chemistry class. Let
Exam practice: The energy profile diagram and activation energy
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Explain back: How a catalyst lowers the activation energy
I have just studied how a catalyst lowers the activation energy in my SS2 Chemistry class.
Exam practice: Measuring rate by volume of gas or by loss of mass
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Explain back: Le Chatelier's principle stated
I have just studied Le Chatelier's principle stated in my SS2 Chemistry class. Let me expl
Explain back: The methods of softening hard water
I have just studied the methods of softening hard water in my SS2 Chemistry class. Let me
Exam practice: Ozone depletion and its causes
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