Metal oxides which react with both acids as well as bases to produce salts and water are known as amphoteric oxides.
22.
Some metallic oxides are amphoteric, like aluminum oxide, which means that they can react with both acids and bases.
23.
Like the hydroxides of other metals, such as chromium, zinc hydroxide ( and zinc oxide ), is amphoteric.
24.
Treating the system as a mixture of hydrochloric acid and the amphoteric substance water, a pH of 6.89 results.
25.
:: : Lead has been or is sometimes classified as a metalloid on account of its amphoteric or weakly metallic nature.
26.
Lead's weak metallic character is illustrated by its general amphoteric nature : lead and lead oxides react with both acids and bases.
27.
Unlike simple amphoteric compounds that may only form " either " a cationic or anionic species, a zwitterion simultaneously has both ionic states.
28.
The oxide of lead in its preferred oxidation state ( PbO; + 2 ) is amphoteric; it forms anionic plumbates in strongly basic solutions.
29.
Because gelatin is a protein that contains both acid and base amino groups, it acts as an amphoteric molecule, displaying both acidic and basic properties.
30.
One type of amphoteric species are "'amphiprotic "'molecules, which can either donate or accept a proton ( H + ).
