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In organic chemistry and biochemistry, important examples include amino acids and derivatives of citric acid. Although an amphiprotic species must be amphoteric, the converse is not true. For example, a metal oxide such as zinc oxide, ZnO, contains no hydrogen and so cannot donate a proton. Nevertheless, it can act as an acid by reacting with ...
Many organic compounds also contain H atoms, such as hydrocarbons and organic matter. Given the ubiquity of hydrogen atoms in inorganic and organic chemical compounds, the hydrogen cycle is focused on molecular hydrogen, H 2. As a consequence of microbial metabolisms or naturally occurring rock-water interactions, hydrogen gas can be created.
By some definitions, "organic" compounds are only required to contain carbon. However, most of them also contain hydrogen, and because it is the carbon-hydrogen bond that gives this class of compounds most of its particular chemical characteristics, carbon-hydrogen bonds are required in some definitions of the word "organic" in chemistry. [ 92 ]
Hydrogen compounds are compounds containing the element hydrogen. In these compounds, hydrogen can form in the +1 and -1 oxidation states. Hydrogen can form compounds both ionically and in covalent substances. It is a part of many organic compounds such as hydrocarbons as well as water and other organic substances.
Aluminium hydroxide is amphoteric, i.e., it has both basic and acidic properties. Closely are aluminium oxide hydroxide, AlO(OH), and aluminium oxide or alumina (Al 2 O 3), the latter of which is also amphoteric. These compounds together are the major components of the aluminium ore bauxite. Aluminium hydroxide also forms a gelatinous ...
Oxygen difluoride – OF 2; Ozone – O 3; Aluminium oxide – Al 2 O 3; Americium(II) oxide – AmO; Americium(IV) oxide – AmO 2; Antimony trioxide – Sb 2 O 3; Antimony(V) oxide – Sb 2 O 5; Arsenic trioxide – As 2 O 3; Arsenic(V) oxide – As 2 O 5; Barium oxide – BaO; Beryllium oxide – BeO; Bismuth(III) oxide – Bi 2 O 3; Bismuth ...
The vast majority of compounds, including all aluminium-containing minerals and all commercially significant aluminium compounds, feature aluminium in the oxidation state 3+. The coordination number of such compounds varies, but generally Al 3+ is either six- or four-coordinate. Almost all compounds of aluminium(III) are colorless. [2]
Organoaluminium chemistry is the study of compounds containing bonds between carbon and aluminium. It is one of the major themes within organometallic chemistry . [ 1 ] [ 2 ] Illustrative organoaluminium compounds are the dimer trimethylaluminium , the monomer triisobutylaluminium , and the titanium-aluminium compound called Tebbe's reagent .