amphoteric
- adjective
- /æmˈfoʊtɛrɪk/
- Specialized
- An amphoteric molecule can donate or accept protons, which is essential in many chemical reactions.
Examples
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Zinc oxide is considered amphoteric as it can react with both acids and bases to form salts.
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And so your amphoteric it can molecule can function as either an acid or base depending on the conditions.
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Water is an amphoteric substance because it can react with both acids and bases.
Synonyms
Able to act as either an acid or a base, like water
Compounds
- Specialized
A substance that can act as an acid or a base depending on the liquid it is in
Surface Forms
Morphology
amphoteric = amphoter + ic
Built from the Greek combining form meaning 'both' plus the adjectival suffix '-ic'; the combining form is not a standalone English word and the meaning is specialised (chemistry), so learners may only partly infer the meaning from its parts.
Etymology
Amphoteric comes from the Greek root amphi- meaning 'both', the same root you see in amphibian, which lives 'both' in water and on land. So an amphoteric substance can act as 'both' an acid and a base.