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  2. Orthoformic acid - Wikipedia

    en.wikipedia.org/wiki/Orthoformic_acid

    Orthoformic acid or methanetriol is a chemical compound with the formula H C(OH) 3. In this molecule, the central carbon atom is bound to one hydrogen and three hydroxyl groups. Orthoformic acid was long held to be a hypothetical chemical compound , as it was expected to decompose instantly into formic acid and water, making it too unstable to ...

  3. Yttrium hydroxide - Wikipedia

    en.wikipedia.org/wiki/Yttrium_hydroxide

    2 Chemical properties. ... (OH) 3 Appearance white solid Related compounds ... hydroxide is an inorganic compound and an alkali with the chemical formula Y(OH) 3 ...

  4. Finite element method in structural mechanics - Wikipedia

    en.wikipedia.org/wiki/Finite_element_method_in...

    = vector of the system's nodal displacements. = vector of equivalent nodal forces, representing all external effects other than the nodal forces which are already included in the preceding nodal force vector R. These external effects may include distributed or concentrated surface forces, body forces, thermal effects, initial stresses and strains.

  5. Structural formula - Wikipedia

    en.wikipedia.org/wiki/Structural_formula

    Skeletal structural formula of Vitamin B 12.Many organic molecules are too complicated to be specified by a molecular formula.. The structural formula of a chemical compound is a graphic representation of the molecular structure (determined by structural chemistry methods), showing how the atoms are possibly arranged in the real three-dimensional space.

  6. Force field (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Force_field_(chemistry)

    Part of force field of ethane for the C-C stretching bond. In the context of chemistry, molecular physics, physical chemistry, and molecular modelling, a force field is a computational model that is used to describe the forces between atoms (or collections of atoms) within molecules or between molecules as well as in crystals.

  7. Holmium(III) hydroxide - Wikipedia

    en.wikipedia.org/wiki/Holmium(III)_hydroxide

    Ho(OH) 3 + 3 H + → Ho 3+ + 3 H 2 O Holmium(III) hydroxide undergoes thermal decomposition to HoO(OH) at elevated temperatures. Further decomposition at higher temperatures produces Ho 2 O 3 .

  8. Aluminium hydroxide - Wikipedia

    en.wikipedia.org/wiki/Aluminium_hydroxide

    Aluminium hydroxide is amphoteric, i.e., it has both basic and acidic properties. Closely related 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 ...

  9. Boric acid - Wikipedia

    en.wikipedia.org/wiki/Boric_acid

    b(oh) 3 (oh 2) + h 2 o → [b(oh) 4] − + h 3 o + This reaction may be characterized as Lewis acidity of boron toward HO − , rather than as Brønsted acidity . [ 16 ] [ 17 ] [ 18 ] However, some of its behaviour towards some chemical reactions suggest it to be a tribasic acid in the Brønsted-Lowry sense as well.