Define pH and what is acid or base
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well ph is type of scale for the liquid and when ph is less than 7 it is a acid while above 7it is alkaline or base.7 is neutral
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A pH value is a number from 1 to 14, with 7 as the middle (neutral) point. Values below 7 indicate acidity which increases as the number decreases, 1 being the most acidic.
An acidic solution has a high concentration of hydrogen ions (H^+ +), greater than that of pure water.
A basic solution has a low H^+ concentration, less than that of pure water.
hope it helps you
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