Amphoteric
Amphoteric
Amphoteric (pronunciation: /æm·fəˈter·ɪk/) is a term used in Chemistry to describe a substance that can react as both an acid and a base. The term is derived from the Greek words 'amphi' meaning 'both' and 'terei' meaning 'to turn'.
Etymology
The term 'Amphoteric' is derived from the Greek words 'amphi', which means 'both', and 'terei', which means 'to turn'. This is in reference to the ability of amphoteric substances to 'turn' or react as both an acid and a base.
Related Terms
- Acid: A substance that can donate a proton or accept an electron pair in reactions.
- Base: A substance that can accept a proton or donate an electron pair in reactions.
- Zwitterion: A molecule or ion having separate positively and negatively charged groups.
- Hydroxide: A diatomic anion consisting of a hydrogen atom and an oxygen atom, usually carrying a negative charge.
- Amphiprotic: A substance that can either accept or donate a proton, thus acting as an acid or a base.
Examples
Some examples of amphoteric substances include water, amino acids, proteins, aluminum hydroxide, and zinc oxide.
See Also
External links
- Medical encyclopedia article on Amphoteric
- Wikipedia's article - Amphoteric
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