Essential Chemistry for IGCSE - Acids And Bases (Section 5 - No. 12)
What ion is responsible for the acidic properties of a solution?
Hydroxide (OH-)
Hydronium (H3O+)
Chloride (Cl-)
Sulfate (SO42-)
Explanation
The hydronium ion (H3O+) is responsible for the acidic properties of a solution.
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