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Chem 1020 Final Exam Questions with 100% Verified Correct Answers
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Chem 1020 Final Exam Questions with 100% Verified Correct Answers what is the most electropositive element? - Correct Answer Li Which of the following elements has 3 electrons in the valence (outer) shell? - Correct Answer B Which of the following would you expect to have ionic bonds? - Corr...

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  • October 4, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • what is the most electropositive element
  • which of the following elements has 3 electrons in
  • which of the following would you expect to have io

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  • Chem 1020

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Chem 1020 Final Exam Questions with
100% Verified Correct Answers
what is the most electropositive element? - Correct Answer Li


Which of the following elements has 3 electrons in the valence (outer)
shell? - Correct Answer B


Which of the following would you expect to have ionic bonds? - Correct
Answer CsF


Which of the following would you expect to have polar covalent bonds? -
Correct Answer NF3


Which molecule has nonpolar covalent bonds? - Correct Answer N2


the number of electrons in the valence shell of sulfur is? - Correct Answer
6


oxygen is more electronegative than - Correct Answer sulfur


the most electronegative elements in the periodic table are generally
found - Correct Answer toward the right in a horizontal row and toward the
top in a column


for carbon monoxide, O has a formal charge of - Correct Answer +1


what is the formal charge of N in HNO3? - Correct Answer +1


what is the percent s character in an sp2 hybridized orbital? - Correct
Answer 33%

,the maximum number of electrons that a molecular orbital can contain is -
Correct Answer 2


the approximate H-C-H bond able in methane is - Correct Answer 109.5


the lewis structure of methane (sp3) - Correct Answer tetrahedral


acyclic - Correct Answer containing no rings of atoms


heterocyclic - Correct Answer ring shaped carbon chain which has to have
at least one atom that isn't carbon in the ring


what is the name of the alkane that has 3 carbon atoms? - Correct Answer
propane


which of the following would exhibit hydrogen bonding? - Correct Answer
CH3OH


the more carbons - Correct Answer the higher the boiling point


the boiling points of normal alkanes - Correct Answer rise as the length of
the carbon chain increases and are higher than the boiling points of
branched alkanes with the same molecular formula


the most stable conformation of propane is - Correct Answer staggered


the least stable conformation of propane is - Correct Answer eclipsed


what is the C-C-C bond angle of cyclobutane? - Correct Answer 90 degrees


benzonitrile - Correct Answer benzene with a 3 (-) N

, What class of organic compounds result when cyclopentanone reacts with
ethylamine in the presence of trace acid? - Correct Answer Imine


what product results from the SN2 reaction between R-2-chloropentane
and hydroxide? - Correct Answer S-2-pentanol


in nucleophilic acyl substitution - Correct Answer addition to the carbonyl
by a nucleophile is followed by loss of the leaving group.


sn2 reactions usually proceed with - Correct Answer complete inversion at
the center undergoing substitution


predict the two most likely mechanisms for the reaction of 2-iodohexane
with sodium ethoxide - Correct Answer SN2 & E2


predict the two most likely mechanisms which occur when 2-iodohexane is
heated in ethanol - Correct Answer E1 and SN1


acetyl chloride undergoes nucleophilic substitution at a faster rate than
methyl acetate because - Correct Answer chloride is a better leaving
group than methoxide


Esters and amides are most easily made by nucleophilic acyl substitution
reactions on ________. - Correct Answer acid chlorides


which reagent could be used in a williamson synthesis of cyclohexyl
methyl ether? - Correct Answer NaH


an amie can react with an acid anhydride to form an amide. the process is
known as - Correct Answer nucleophilic acyl substitution


anisole - Correct Answer methoxybenzene

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