Chem 219 Module 2 Exam Questions and
Answers (Latest 2026)
list prefixes for first 10 carbons in order - Correct Answers
✅meth, eth, prop, but, pent, hex, hept, oct, non, dec
hydrocarbon - Correct Answers ✅compounds composed of
only carbon and hydrogen
parent chain - Correct Answers ✅longest continuous chain
of carbon atoms
substituent - Correct Answers ✅heteroatom or group of
atoms that are attached to the parent chain
numerical prefixes for # of identical substituent groups (2-10
in order) - Correct Answers ✅di, tri, tetra, penta, hexa,
hepta, octa, nona, deca
alkane (with formula) - Correct Answers ✅hydrocarbon
containing only single bonds between carbons, CnH2n+2
rules for naming alkanes - Correct Answers ✅1. longest
continues chain is parent chain
2. number parent chain starting with the end closest to the
first branch
3. name using IUPAC rules for substituents
, Chem 219 Module 2 Exam Questions and
Answers (Latest 2026)
IUPAC systematic name order for alkanes - Correct Answers
✅locant-(prefix)SubstituentParent
in numbering parent chains, if there are two equally long
chains... - Correct Answers ✅select the chain with the
most branches coming off
in numbering parent chains, if the first branch point if the
same distance from either end of the parent chain... -
Correct Answers ✅choose the numbering that gives the
lower numbers to the most substituents
in numbering parent chains, if there are only 2 substituents
and both are equidistant from opposite ends of the parens
chain... - Correct Answers ✅choose the numbering
direction so the substituent with the higher alphabetical
priority gets the lower locant number
solubility and density properties of alkanes - Correct
Answers ✅NOT soluble in water, low density (< 1g/ml) so
floats on top of water
melting and boiling points properties of alkanes - Correct
Answers ✅LOW MPs and BPs due to weak attractive forces
between molecules
Answers (Latest 2026)
list prefixes for first 10 carbons in order - Correct Answers
✅meth, eth, prop, but, pent, hex, hept, oct, non, dec
hydrocarbon - Correct Answers ✅compounds composed of
only carbon and hydrogen
parent chain - Correct Answers ✅longest continuous chain
of carbon atoms
substituent - Correct Answers ✅heteroatom or group of
atoms that are attached to the parent chain
numerical prefixes for # of identical substituent groups (2-10
in order) - Correct Answers ✅di, tri, tetra, penta, hexa,
hepta, octa, nona, deca
alkane (with formula) - Correct Answers ✅hydrocarbon
containing only single bonds between carbons, CnH2n+2
rules for naming alkanes - Correct Answers ✅1. longest
continues chain is parent chain
2. number parent chain starting with the end closest to the
first branch
3. name using IUPAC rules for substituents
, Chem 219 Module 2 Exam Questions and
Answers (Latest 2026)
IUPAC systematic name order for alkanes - Correct Answers
✅locant-(prefix)SubstituentParent
in numbering parent chains, if there are two equally long
chains... - Correct Answers ✅select the chain with the
most branches coming off
in numbering parent chains, if the first branch point if the
same distance from either end of the parent chain... -
Correct Answers ✅choose the numbering that gives the
lower numbers to the most substituents
in numbering parent chains, if there are only 2 substituents
and both are equidistant from opposite ends of the parens
chain... - Correct Answers ✅choose the numbering
direction so the substituent with the higher alphabetical
priority gets the lower locant number
solubility and density properties of alkanes - Correct
Answers ✅NOT soluble in water, low density (< 1g/ml) so
floats on top of water
melting and boiling points properties of alkanes - Correct
Answers ✅LOW MPs and BPs due to weak attractive forces
between molecules
