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Which of the following reactions illustrates amphoterism

User Chmoelders
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The answer is;

H₂O+H₂O⇌H₃O⁺+OH⁻

Amphoteric substances are capable of acting as a base or an acid in a reaction. The reason water is considered amphoteric is because it is capable of self-ionizing. Another popular amphoteric compound is Al2O3. These molecules are able to accept and donate a proton.
User Galatians
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