Vitalism — idea?
Organic compounds only from living organisms.
Wöhler urea synthesis — significance?
Disproved vitalism by making urea from inorganic materials.
Catenation — ability?
Atoms of the same element bond to form chains and rings.
Organic chemistry — definition?
Study of carbon compounds excluding certain oxides and salts.
Lewis structure — shows?
Covalent bonds with shared electron pairs and lone pairs.
Structural formula — depicts?
Covalent bonds between atoms with dashes for bonds.
Condensed structural formula — simplifies?
Structural formula by omitting some bond dashes.
Bond-line representation — uses?
Zig-zag lines for C–C bonds; atoms implied.
Polygon formula — represents?
Cyclic compounds with corners as carbons and sides as bonds.
Hydrocarbons — contain?
Only carbon and hydrogen atoms.
Aliphatic hydrocarbons — include?
Alkanes, alkenes, alkynes, non-aromatic.
Aromatic hydrocarbons — characteristic?
Contain benzene rings with delocalized electrons.
Saturated compounds — bonds?
Only single bonds, maximum hydrogens.
Unsaturated compounds — bonds?
Double or triple bonds, fewer hydrogens.
Homologous series — features?
Same functional group, differing by –CH2– units.
Paraffins — meaning?
Alkanes, chemically inert, little reactivity.
Alkane formula —?
CnH2n+2.
n-, iso-, neo- — prefixes?
Indicate chain structure and branching pattern.
Benzene — formula?
C6H6 with delocalized π-electrons.
Natural gas — main component?
Methane (CH4).
Teste tes connaissances avec un QCM de 20 questions sur Organic Hydrocarbon Fundamentals.
1. What nineteenth-century idea claimed that only living organisms could produce organic compounds through a special vital force?
2. Which event showed that an organic compound could be made from an inorganic starting material in the laboratory?
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