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16 March, 18:26

Which is an example of a base? a (lemon juice b (baking soda c (an insolator d (water

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  1. 16 March, 18:58
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    b) Baking soda

    Explanation:

    Baking soda is sodium hydrogen carbonate, NaHCO₃.

    It reacts with water according to the equation

    NaHCO₃ + H₂O ⇌ H₂CO₃ + NaOH

    Thus, baking soda is a base because it increases the concentration of hydroxide ions in water.

    Water is neutral.

    Lemon juice is an acid because it contains citric acid.

    An insulator is a substance that does not conduct electricity. Insulators are neither acidic nor basic.
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