Essential Chemistry for IGCSE - Acids And Bases (Section 1 - No. 21)
What ion is responsible for acidic behavior in aqueous solutions?
Hydroxide (OH⁻)
Hydronium (H₃O⁺)
Chloride (Cl⁻)
Sodium (Na⁺)
Explanation
Acidic behavior is due to the presence of hydronium ions (H3O+).
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