what is acid,base and alkali.
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• An acid is a substance that has a pH lower than 7. For example, hydrochloric acid, sulphuric acid, citric acid, ethanoic acid (vinegar). A base is a substance that neutralises an acid – those that dissolve in water are called alkalis. An alkali is a soluble substance with a pH higher than 7.
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Explanation:
An acid is a substance that has a pH lower than 7.
For example, hydrochloric acid, sulphuric acid, citric acid, ethanoic acid (vinegar).
A base is a substance that neutralises an acid – those that dissolve in water are called
alkalis.
An alkali is a soluble substance with a pH higher than
For example, sodium hydroxide (used to make soap), potassium hydroxide, oven
cleaner, toothpaste, shampoo.
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