250 prompts matching "Why chemists use symbols rather than words"
Exam practice: The tests that identify the common non-metal gases
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Explain back: The preferential discharge of ions
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Exam practice: The electrolysis of molten and of aqueous compounds compared
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Explain back: Metals and their extraction reviewed
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Explain back: The strength of an acid and the degree of ionisation
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Exam practice: The hydrolysis of salts and the pH that results
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Explain back: Primary standards, and what makes a substance suitable
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Exam practice: The procedure for a standard acid-base titration
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Explain back: Calculating the average titre correctly
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Exam practice: Finding the concentration of an unknown alkali
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Explain back: The standard enthalpy of formation
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Exam practice: The energy profile diagram and activation energy
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Explain back: How a catalyst lowers the activation energy
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Exam practice: Measuring rate by volume of gas or by loss of mass
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Explain back: Le Chatelier's principle stated
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Exam practice: The effect of temperature on the position of equilibrium
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Explain back: Saturated and supersaturated solutions
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Exam practice: Solubility product and sparingly soluble salts
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Explain back: The methods of softening hard water
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Exam practice: The tests for water purity
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