The term for a solution with a low ph number is such as lemon juice or vinegar is

Answer is: acid.
An acid is a molecule or ion capable of donating proton or hydrogen ion H⁺.
pH (potential of hydrogen) is a numeric scale used to specify the acidity or basicity an aqueous solution.
pH number of lemon juice (citric acid) and vinegar (acetic acid CH₃COOH) is below seven (pH<7). For bases pH is greater than seven.

Perimeter? wheres the answers

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