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amphoteric▼◼◼◼adjective[UK: ˌamfəʊtˈerɪk] [US: ˌæmfoʊtˈerɪk]
amphiprotic▼◼◻◻adjective
zwitterion [zwitterions]▼noun[UK: zwɪtˈiərɪən] [US: zwɪtˈiərɪən]
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