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2. Trihydrogen oxide - Wikipedia

   en.wikipedia.org/wiki/Trihydrogen_oxide

   The compound is considered not a true molecular trihydrogen oxide compound. Instead, each oxygen atom is linked by a strong (covalent) bond to only two hydrogen atoms, as a water molecule, and there are molecules of dihydrogen inserted in the voids of the water molecules network. [6] Structurally, it is thus a 2(H 2 O)·H 2 stoichiometric ...

3. Oxidation state - Wikipedia

   en.wikipedia.org/wiki/Oxidation_state

   The −1 occurs because each carbon is bonded to one hydrogen atom (a less electronegative element), and the − ⁠ 1 / 5 ⁠ because the total ionic charge of −1 is divided among five equivalent carbons. Again this can be described as a resonance hybrid of five equivalent structures, each having four carbons with oxidation state −1 and ...

4. Semiheavy water - Wikipedia

   en.wikipedia.org/wiki/Semiheavy_water

   It exists whenever there is water with 1 H and 2 H in the mix. This is because hydrogen atoms (1,2 H) are rapidly exchanged between water molecules. Water with 50% 1 H and 50% 2 H, is about 50% H 2 HO and 25% each of H 2 O and 2 H 2 O, in dynamic equilibrium. [3] In normal water, about 1 molecule in 3,200 is HDO (1 H 2 HO) (one hydrogen in ...

5. Hydrogen compounds - Wikipedia

   en.wikipedia.org/wiki/Hydrogen_compounds

   Water molecules have two hydrogen atoms and one oxygen atom. While H 2 is not very reactive under standard conditions, it does form compounds with most elements. Hydrogen can form compounds with elements that are more electronegative, such as halogens (F, Cl, Br, I), or oxygen; in these compounds hydrogen takes on a partial positive charge. [1]

6. Water - Wikipedia

   en.wikipedia.org/wiki/Water

   Its chemical formula, H 2 O, indicates that each of its molecules contains one oxygen and two hydrogen atoms, connected by covalent bonds. The hydrogen atoms are attached to the oxygen atom at an angle of 104.45°. [21] In liquid form, H 2 O is also called "water" at standard temperature and pressure.

7. IUPAC nomenclature of inorganic chemistry - Wikipedia

   en.wikipedia.org/wiki/IUPAC_nomenclature_of...

   In these cases the oxidation number (the same as the charge) of the metal ion is represented by a Roman numeral in parentheses immediately following the metal ion name. For example, in uranium(VI) fluoride the oxidation number of uranium is 6. Another example is the iron oxides. FeO is iron(II) oxide and Fe 2 O 3 is iron(III) oxide.