Question

what do u mean by acid and base?
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Answer 1

Answer:

An acid is a substance that donates protons or accepts a pair of valence electrons to form a bond . A base is a substance that can accept protons or donate a pair of valence electrons to form a bond. Bases can be thought of as the chemical opposite of acids.

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Answer 2

Answer:

An acid is any substance that increases the concentration of the H+ ion when it dissolves in water

A base is any substance that increases the concentration of the OH- ion when it dissolves in water