500 prompts matching "Altering subscripts in order to balance an equation"
Exam practice: Preparing an insoluble salt by precipitation
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Exam practice: Substitution with halogens, and the mechanism in outline
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Exam practice: Thermoplastics and thermosetting plastics compared
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Exam practice: The link between the reactivity series and the method used
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Exam practice: The amphoteric nature of aluminium oxide and hydroxide
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Exam practice: Sulphuric acid as an acid, a dehydrating agent and an oxidiser
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Exam practice: Removing permanent hardness by chemical and ion-exchange methods
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Practice set: Identifying cations with sodium hydroxide solution
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Real-life Nigeria: The confirmatory tests for the common cations
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Spot my mistake: Reporting a sulphate result without acidifying first
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Teach me: The standard solution and the primary standard
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Quiz me: The correct use of the pipette and the burette
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Spot my mistake: Including a rough titre in the average
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Calculation practice: Calculating concentration from a redox titration
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Real-life Nigeria: Determining the purity of a sample by redox titration
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Teach me: The electrochemical cell, and how it differs from an electrolytic one
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Quiz me: The standard electrode potential and what it measures
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Practice set: Predicting from electrode potentials whether a reaction occurs
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Spot my mistake: Reversing the sign of a half-cell potential wrongly
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Real-life Nigeria: The Daniell cell and the dry cell
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