250 prompts matching "Filtration, and when it is the right method"
Practice set: The formation of a covalent bond in a simple molecule
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Exam practice: Single, double and triple covalent bonds
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Practice set: Giant structures and simple molecular structures compared
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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
Practice set: Assigning oxidation numbers in compounds and in ions
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Real-life Nigeria: Oxidation in the rusting of Nigerian roofing sheets
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Explain back: Extraction by reduction with carbon
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Practice set: Extraction by electrolysis
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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
Exam practice: The halogens as a family of non-metals
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Real-life Nigeria: The non-metals essential to Nigerian agriculture
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Exam practice: The tests that identify the common non-metal gases
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Practice set: Finding the concentration of an unknown acid
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Exam practice: Finding the concentration of an unknown alkali
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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.
Real-life Nigeria: The catalysts used in Nigerian industry
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Real-life Nigeria: Equilibrium in the Haber process
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Practice set: The stages of municipal water treatment
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Real-life Nigeria: Gas flaring in the Niger Delta
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