250 prompts matching "Leaving out the oxidation state where it is needed"
Exam practice: Converting ammonia into nitrogenous fertiliser
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Spot my mistake: Proposing a higher temperature to raise the ammonia yield
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Spot my mistake: Describing limestone as the reducing agent
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Spot my mistake: Assuming Nigeria must import all its industrial chemicals
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Exam practice: A full SS2 Chemistry paper under examination conditions
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Spot my mistake: The errors most often made in third-term SS2 Chemistry
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Real-life Nigeria: The SS2 Chemistry topics I still need to practise
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Teach me: The metallic bond and the delocalised electrons
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Exam practice: Identifying the species oxidised in a reaction
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Quiz me: Identifying the oxidising agent and the reducing agent
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Exam practice: The common oxidising and reducing agents and their tests
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Practice set: Density, melting point and hardness across the metals
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Quiz me: The link between reactivity and the method of extraction
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Practice set: Making sulphur dioxide in the laboratory and testing it
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Exam practice: The electrolysis of molten and of aqueous compounds compared
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Chemistry at work: Preparing a revision plan for the SS2 first term
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Teach me: The Bronsted-Lowry definition of acids and bases
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Exam practice: The hydrolysis of salts and the pH that results
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Quiz me: The standard solution and how one is prepared
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Teach me: The mole ratio in a titration calculation
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