Cards (4)

    • A pH value is a numerical value used to indicate how acidic or alkaline a solution is. It runs from 0-14
    • A pH of 7 is neutral and is green
    • A pH value of less than 7 is acidic, with strongly acids being red and weaker acid being yellow-green
    • A pH of more than 7 is alkaline, with strong alkaline being purple and weak alkaline being green-blue
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