Which change in pH represents a hundredfold increase in the concentration of hydronium ions in a solution?

(1) pH 1 to 2

(2) pH 1 to 3

(3) pH 2 to 1

(4) pH 3 to 1

(4) pH 3 to 1

Explanation:

im 95% sure its the right answer

neutrons are in the middle of the atom and the electrons, which are much smaller.

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