222 prompts matching "Exam practice: Empirical and molecular formula from composition"
Real-life Nigeria: Nigeria's metal deposits and their exploitation
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Chemistry at work: Metalloids, and where they sit between the two
Act as my SS2 Chemistry tutor. Explain which Nigerian jobs and industries depend on metall
Explain back: The preparation and properties of chlorine
I have just studied the preparation and properties of chlorine in my SS2 Chemistry class.
Calculation practice: Applying Faraday's first law to a calculation
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Real-life Nigeria: Electroplating and metal purification in Nigeria
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Explain back: Metals and their extraction reviewed
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Calculation practice: A mixed set of first-term SS2 chemistry calculations
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Real-life Nigeria: Linking bonding, structure and properties together
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Explain back: The strength of an acid and the degree of ionisation
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Spot my mistake: Treating concentration and strength as the same thing
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Real-life Nigeria: Buffer solutions and where they matter
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Explain back: Primary standards, and what makes a substance suitable
I have just studied primary standards, and what makes a substance suitable in my SS2 Chemi
Calculation practice: Preparing a solution of a stated concentration
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Real-life Nigeria: Back titration, and when it is used
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Chemistry at work: The accuracy demanded of an analytical chemist
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Explain back: The standard enthalpy of formation
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Calculation practice: Using Hess's law to find an unknown enthalpy change
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Real-life Nigeria: Fuels and their heating values in Nigeria
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Explain back: Saturated and supersaturated solutions
I have just studied saturated and supersaturated solutions in my SS2 Chemistry class. Let
Calculation practice: Calculating solubility in moles per cubic decimetre
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