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amphoteric
This term is a specialized technical descriptor used almost exclusively within chemistry and materials science. It describes a specific chemical duality where a substance does not strictly adhere to a single classification as an acid or a base, but instead adapts its behavior based on the environment it is placed in.
In a laboratory or academic setting, the word carries a neutral, descriptive tone. It is not used in general conversation or metaphorically to describe people or personalities, as its meaning is strictly tied to the proton-transfer or electron-pair mechanisms of chemical reactions.
Meanings
Examples
Aluminum oxide is a well known amphoteric oxide.
Is water considered an amphoteric substance in this reaction?
Amino acids are amphoteric because they contain both amino and carboxyl groups.
The compound exhibits amphoteric behavior depending on the pH of the solution.
I need to check if this metal oxide is amphoteric before proceeding with the titration.
Zinc hydroxide is amphoteric and dissolves in both strong acids and strong bases.
The professor explained how amphoteric species can act as buffers in biological systems.
Wait, if it is amphoteric, it should react with the sodium hydroxide solution.