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Acids, alkalis, pH and neutralisation

Chemical changes and electrolysis · Lesson 1 of 6

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Lesson 1 of 6 · Chemical changes and electrolysis

Acids, alkalis, pH and neutralisation

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By the end you’ll be able to

describe the characteristic properties of acids and alkalis, including their effects on indicators and their reactions with metals, bases and carbonates
interpret and use the pH scale to classify substances as strongly acidic, weakly acidic, neutral, weakly alkaline or strongly alkaline
explain acidity and alkalinity in terms of the presence of $\text{H}^+(\text{aq})$ and $\text{OH}^-(\text{aq})$ ions

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write word equations and balanced symbol equations for neutralisation reactions, including acid + base, acid + alkali and acid + carbonate

explain that neutralisation produces a salt and water, and that acids reacting with carbonates also produce carbon dioxide

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