452 prompts matching "Describing a covalent compound as conducting when molten"
Exam practice: The products of complete and of incomplete combustion
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Calculation practice: Calculating the heat of combustion of a fuel
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Real-life Nigeria: Petrol quality and adulteration in Nigeria
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Explain back: How a soap molecule lifts away dirt
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Practice set: Soapless detergents and how they differ from soap
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Exam practice: The action of soap in hard water
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Real-life Nigeria: Local soap production in Nigeria
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Explain back: The chromophore, and why a dye is coloured
I have just studied the chromophore, and why a dye is coloured in my SS3 Chemistry class.
Exam practice: Mordants and the fixing of a dye
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Calculation practice: Calculating the quantity of dye needed for a given fabric
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Real-life Nigeria: Adire and indigo dyeing in Nigeria
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Explain back: The factors that speed up rusting
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Practice set: The methods of preventing rust
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Exam practice: Galvanising, sacrificial protection and cathodic protection
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Real-life Nigeria: Corrosion of pipelines and bridges in Nigeria
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Explain back: Acid rain, its chemistry and its effects
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Exam practice: Heavy metal pollution and its effects on health
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Calculation practice: Interpreting pollutant concentration data
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Real-life Nigeria: Oil spillage and remediation in the Niger Delta
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Explain back: Chlorination and the alternatives to it
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