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The pH scale is a measurement system that indicates the concentration of _____ in solution.

User Vfilby
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Answer:Hydrogen

Step-by-step explanation:

The pH scale is a measurement system that indicates the concentration of HYDROGEN IONS in a solution. The pH scale ranges from zero to 14. A pH that is less than 7 is considered to be acidic while a pH that is more than 7 is considered to be basic.

User Kyle Ross
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Answer: Hydronium ions H+

Explanation: The pH or potentiality of hydrogen for acidic solutions are indicated by the number of Hydronium ions present in the solutions. For basic solutions it is indicated by the presence of hydroxide ions or OH-.

User Anton Balaniuc
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