500 prompts matching "Assigning an oxidation number without checking the overall charge"
Practice set: Hard and soft water, and the causes of hardness
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Practice set: The properties and uses of oxygen
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Exam practice: Combustion and the conditions it requires
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Spot my mistake: Treating air as a compound rather than a mixture
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Teach me: Atomic structure and the mole concept reviewed
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Exam practice: The periodic table and separation techniques reviewed
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Real-life Nigeria: Preparing a revision plan for the SS1 second term
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Explain back: The electrodes, and what happens at each of them
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Spot my mistake: Confusing the anode with the cathode
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Calculation practice: Faraday's laws and the quantity of electricity
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Exam practice: Identifying the oxidising and the reducing agent in a reaction
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Explain back: Covalent bonding and the electron pairs atoms share
I have just studied covalent bonding and the electron pairs atoms share in my SS1 Chemistr
Exam practice: Metallic bonding and the properties it gives
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Real-life Nigeria: Bonding and the properties of Nigerian building materials
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Teach me: Exothermic and endothermic reactions
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Quiz me: The energy profile diagram and how to read it
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Spot my mistake: Giving an exothermic change a positive enthalpy
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Teach me: What the rate of a reaction means
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Practice set: The effect of temperature and surface area on rate
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Exam practice: Catalysts and how they work
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