CHEMISTRY I MODULE 3 /CHEM 103 FINAL EXAM 2
VERSIONS 2025/2026 BANK COMPLETE QUESTIONS
AND ANSWERS ACCURATE ACTUAL EXAM WITH
FREQUENTLY TESTED QUESTIONS AND STUDY
GUIDE / EXPERT VERIFIED FOR GUARANTEED
PASS/ALREADY GRADED A+
Which cycloalkanes are the most abundant and stable? -
....ANSWER...cyclopentane and cyclohexane, tetrahedral
form(109.5) in cyclohexanes.
What are the two forms of the tetrahedral cyclohexane? -
....ANSWER...boat and chair
What are some physical properties of alkanes? -
....ANSWER...nonpolar, insoluble in water. Gas from 1-4
carbons, liquid from 5-17, and solid 18 and above.
Density = - ....ANSWER...< 1 g/ml
,Chemical Properties - ....ANSWER...1.Combustion with
oxygen to produce carbon dioxide and water.
2. Substition. E.g.; CH3Cl+ HCl, CH2Cl2+2HCl
Properties of halogenated hydrocarbons -
....ANSWER...good solvents-not very reactive or
flammable. Many are toxic or pollutants.
Common name for chloromethane(CH3Cl) -
....ANSWER...methyl chloride
Common name for dichloromethane(CH2Cl2) -
....ANSWER...methylene chloride
Common name for trichloromethane(CHCl3) -
....ANSWER...chloroform
Common name for tetrachloromethane(CCl4) -
....ANSWER...carbon tetrachloride
What is the formula and functions of halothane? -
....ANSWER...2-bromo-2-chloro-1,1,1-triflouroethane
,general anesthetic
What is the molecular formula for Alkenes? -
....ANSWER...CnH2n
Are alkenes saturated or unsaturated? -
....ANSWER...unsaturated, because of a rigid double bond.
What are some common names for ethene and propene? -
....ANSWER...Ethylene and propylene
What are geometric isomers? - ....ANSWER...Different
arrangement of atoms in space
What are physical properties of alkenes? -
....ANSWER...similar to alkanes in density, lack of polarity
and insolubility in water
Chemical - ....ANSWER...1. Addition-add atoms across a
double bond with a Ni, Pt, or Pa catalyst to form an alkane
Halogenation to make an alkane
, Hydrogen Halides-HCl, HBr, HI
2. Combustion with O2 to form CO2 and H2O
Markovikov's Rule(for addition of hydrogen halides) -
....ANSWER...The H atom goes to the double bonded
carbon atom with the most hydrogen atoms(that can take
the hydrogen!)
Formula for Alkynes - ....ANSWER...CnH2n-2
Common names for ethyne, propyne, 1-butyne and 2-
butyne - ....ANSWER...acetylene,methylacetylene,
ethylacetylene, dimethylacetylene.
Physical and Chemical Properties of Alkynes: -
....ANSWER...Same as alkenes and alkanes
Chemically, they undergo addition like alkenes
Benzene: Empirical Formula and Molecular Formula -
....ANSWER...CH and C6H6