250 prompts matching "The tests for protein, starch and reducing sugar"
Exam practice: Solubility product and sparingly soluble salts
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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
Calculation practice: Calculating the mass of washing soda needed to soften water
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Exam practice: Ozone depletion and its causes
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Real-life Nigeria: Gas flaring in the Niger Delta
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Chemistry at work: Air pollution control and regulation in Nigeria
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Explain back: The substitution reactions of the alkanes
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Exam practice: How alkenes react by addition across the double bond
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Calculation practice: Calculating the products of complete combustion
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Explain back: The reactions of the alkanols
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Exam practice: The reactions of the alkanoic acids
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Calculation practice: Calculating the yield of an esterification
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Exam practice: The uses of the common plastics
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Calculation practice: Working out the repeating unit from a polymer structure
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Exam practice: The uses of each petroleum fraction
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Calculation practice: Calculating the yield of a named fraction
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Explain back: Why the chosen conditions are a compromise
I have just studied why the chosen conditions are a compromise in my SS2 Chemistry class.
Calculation practice: Calculating the mass of fertiliser from a mass of ammonia
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Calculation practice: Calculating the mass of iron from a mass of ore
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Exam practice: Nuclear fission and nuclear fusion distinguished
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