CHEMISTRY GLOSSARY
nonpolar molecule → nepolarna molekula
Nonpolar molecule is a molecule which has no separation of charge, so no positive or negative poles are formed. For example, the Cl2 molecule has no polar bonds (molecule with one type of atom), CH4 is a non-polar molecule (due to its symmetry). Nonpolar molecules do not dissolve in water as they cannot form hydrogen bonds (thus are hydrophobic) but do dissolve in lipids or fats (lipophilic).
reaction mechanism → reakcijski mehanizam
Reaction mechanism is a list of all elementary reactions that occur in the course of an overall chemical reaction.
reactive metal → reaktivni metal
Reactive metals are metals that readily combine with oxygen at elevated temperatures to form very stable oxides, for example titanium, zirconium, and beryllium. Reactive metals may also become embrittled by the interstitial absorption of oxygen, hydrogen, and nitrogen.
nuclear magnetic resonance → nuklearna magnetska rezonancija
Nuclear magnetic resonance (NMR) is a type of radio-frequency spectroscopy based on the magnetic field generated by the spinning of electrically charged atomic nuclei. This nuclear magnetic field is caused to interact with a very large (1 T - 5 T) magnetic field of the instrument magnet. NMR techniques have been applied to studies of electron densities and chemical bonding and have become a fundamental research tool for structure determinations in organic chemistry.
octahedral molecular geometry → oktaedarska geometrija molekule
Octahedral molecular geometry (square bipyramidal shape) describes the shape of compounds where six atoms or ligands are symmetrically arranged around a central atom. The sulfur hexafluoride (SF6), with six bonding pairs, is predicted and found to be a regular octahedron. Four of the attachments are positioned in a square plane with 90° bond angles. The remaining two attachments are positioned perpendicular (90°) to the square plane at opposite ends of the central atom. Molecules with an octahedral electron pair geometries have sp3d2 (or d2sp3) hybridization at the central atom.
optically active matter → optički aktivna tvar
Optically active matter, by polarized light passing through it, turns the flat of polarized light leftwards or rightwards.
refractory metal → vatrostalni metal
Refractory metal is a metal having an extremely high melting point, for example tungsten, molybdenum, niobium, tantalum, and rhenium
relative atomic mass → relativna atomska masa
Relative atomic mass (Ar) is the ratio of the average mass per atom of the naturally occurring form of an element to 1/12 of the mass of nuclide 12C. The term atomic weight is synonymous with the relative atomic mass.
relative mistake → relativna pogreška
Relative mistake is a relation between absolute mistake (O-μ) and the real value (μ). It is expressed in percentage (%).
semi-permeable membrane → polupropusna membrana
Semi-permeable membrane is a membrane through which only some sorts of particles can pass, while others cannot.
Citing this page:
Generalic, Eni. "OFICINAVIRTUAL.ISSSTE.GOB.MX." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
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