Part 2

30 flashcardsby Alyssa
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1
Water, ammonia, sulfuric acid, deuterium
oxide, ethanol, methanol, acetone,
isopropanol, methyl ethyl ketone, n-
propanol, acetonitrile, DMSO (dimethyl
sulfoxide), and DMF (dimethyl
formamide).
EXAMPLE OF POLAR SOLVENTS
2
Chloroform, pentane, hexane, benzene,
toluene, octane, decane, dimethyl ether,
and dichloromethane.
EXAMPLE OF NON POLAR SOLVENTS
3
are processes in which non covalent interactions
between identical molecules in a pure
sample are disrupted
Boiling and Melting Point
4
The stronger the noncovalent
interactions, the more energy that is
required, in the form of heat, to break
them apart
true
5
is the temperature at
which the liquid state of compound is
converted to gaseous state
(vaporization); dependent on
intermolecular forces
Boiling Point
6
temperature at which the
solid is converted to a liquid
Melting Point
7
influences melting point;
determines how well the individual
molecules in a solid form fit together, the
tighter it is, the greater temperature it
needs to melt
Packing
8
The ________ of the compound in
any homologous series increase as their
molecular weights increase in Van Der
Waals Forces
boiling points
9
in a compound lowers its
boiling point because it reduces the area
of contact
Branching
10
occurs when one
substance is converted into another
substance
chemical reaction
11
is accompanied by
breaking of some bonds and by making
of some others
chemical reaction
12
Define as the detailed knowledge of the
steps involved in a process in which
the reactant molecules change into
products
Reaction Mechanism
13
Chemical reaction involves breaking of
one or more of the existing chemical
bonds in reactant molecules and
formation of new bonds leading to
products
Reaction Mechanism
14
The breaking of a covalent bond is known as
bond fission
15
During bond breaking and bond fission,
the two shared electrons can be
distributed equally or unequally between
the two bonded atoms.
true
16
The fission of a covalent bond with
equal sharing of bonding electrons
Homolytic Fission
17
are neutral but reactive species
having an unpaired electrons and these
can also initiate a chemical reaction
Free Radicals (reactive oxygen
species)
18
The fission of a covalent bond
involving unequal sharing of bonding
electrons
Heterolytic Fission
19
This types of bond fission results in
formation of ions.
Heterolytic Fission
20
The ion which has a positive charge on the carbon atoms, is known as the
carbonium ion or carbocation
21
an ion with a negative charge on the carbon atom is
known as the
carbanion
22
The charged species obtained by the
heterolytic fission initiate chemical reactions
and they are classified as
electrophiles and nucleophiles
23
is an electron deficient species and it may be
positively charged or neutral.
- Examples are H+, N+, O2, Br+, Cl+, Ag+,
CH3 +CO, BF3, etc.
Electrophiles
24
is negatively charged or electron rich
neutral species.
- Examples of nucleophiles are OH–,– NO2, H2O: NH3 etc.
Nucleophiles
25
reaction involves the displacement of one atom or group in a molecule by another atom or group.
substitution
26
Aliphatic compounds undergo _____ reactions.
nucleophilic substitution
27
reaction is characterized
by the removal of a small molecule from
adjacent carbon atoms and the
formation of a double bond.
Elimination
28
Unsaturated hydrocarbons such as
alkenes and alkynes are extremely
reactive towards a wide variety of
reagents. The carbon-carbon double
bond (–C=C–) of an alkene contains two
types of bonds. In alkynes, three carbon-
carbon bonds.
Addition
29
Attacks Multiple Bonds
Addition
30
proceeds with a fundamental change in the
hydrocarbon skeleton of the molecule.
During this reaction, an atom or group
migrates from one position to another.
Molecular Rearrangement
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