Acidic and basic

LC1.4.1.1
Preparing an indicator from red cabbage

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LC1.4.1.2
Effects of acids on indicators

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LC1.4.1.3
Effects of bases on indicators

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LC1.4.1.4
The pH scale

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LC1.4.1.4C
The pH scale - Digital

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LC1.4.1.5C
pH paper versus pH electrode - Digital

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LC1.4.1.6
The pH value of everyday chemicals

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LC1.4.1.6C
The pH value of everyday chemicals - Digital

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Acidic and basic

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