Chemistry 219 Portgage Learning – Organic Chemistry Notes, Practice Questions & Exam Prep

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Exam (elaborations)

Chemistry 219 Portgage Learning – Organic Chemistry Notes, Practice Questions & Exam Prep

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9 pages

2026/2027

Institution CHEM 219

Module CHEM 219

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Prepare for CHEM 219 at Portgage Learning with this focused chemistry study resource. Designed for students studying chemistry and organic chemistry, this material can help reinforce important concepts, review coursework, and prepare for quizzes and examinations.

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CHEMvn219vnModulevn1vnproblemvnset

Onvnavnpiecevnofvnscratchvnpaper,vnwritevnoutvnthevnLewisvnDotvnDiagramvnforvneachvnofvn
thevnindicatedvnelementsvnandvndeterminevnthevnfollowingvnforvneach:

a)vnThevnnumbervnofvnLonevnPairsvnthevnatomvnpossessesvninvnitsvnvalencevnshell.b)vnThev
nnumbervnofvnUnpairedvnElectronsvnthevnatomvnpossessesvninvnitsvnvalencevnshell.c)vnTh

evnnumbervnofvnbondsvnthevnatomvnwillvnform.

Oxygen

Carbon

Hydrogen

Nitrogenvn-vncorrectvnanswer✔ ✔ Oxygenvn-vna)vn2vnb)vn2vnc)vn2

Carbonvn-vna)vn0vnb)vn4vnc)vn4

Hydrogen-vna)vn0vnb)vn1vnc)vn1

Nitrogenvn-vna)vn1vnb)vn3vnc)vn3

Classifyvnthevnbondingvnbetweenvnthevngivenvnpairsvnofvnatomsvnasvnionic,vncovalent,vnor
vnpolarvncovalent.vnUsevnthevntablevnofvnelectronegativitiesvnshownvnbelowvntovnhelpvnwit

hvnthevnclassification.

a.vnBrvnandvnBr

b.vnKvnandvnCl

c.vnPvnandvnCl

d.vnCvnandvnO

, e.vnNavnandvnBrvn-vncorrectvnanswer✔ ✔ a.vnBr-
Br:vnElectronegativityvndifferencevn()vn=vn0vn=vnCOVALENTvn(orvnpurevncovalent)

b.vnK-Cl:vn()vn=vn2.2vn=vnIONIC

c.vnP-Cl:vn()=vn0.9vn=vnPOLARvnCOVALENT

d.vnC-O:vn()=vn1.0vn=vnPOLARvnCOVALENT

e.vnNa-Br:vn()vn=vn1.8vn=vnPOLARvnCOVALENT

Definevnthevntermvnconstitutionalvnisomer.vn-vncorrectvnanswer✔ ✔
Twovn(orvnmore)vndifferentvnchemicalvncompoundsvnwithvnthevnsamevnmolecularvnfor
mulavnbutvndifferentvnconnectivityvnbetweenvnthevnatomsvninvntheirvnstructuralvnformula
e.

Explainvn(usingvnspecificvnevidence)vnwhatvnmakesvnthevnfollowingvntwovncompoundsvn
constitutionalvnisomersvnofvnonevnanother:vn-vncorrectvnanswer✔ ✔
BothvncompoundsvnhavevnavnMFvnofvnC3H6Ovn-vnsamevnMF.

Compoundvn"a"vnhasvnavn3-
carbonvnchainvnwithvnavnC=Ovninvnthevnmiddle.vnNovnHvnatomvnconnectedvntovnCvnofvnC=
O.

Compoundvn"b"vnhasvnavn3-
carbonvnchainvnwithvnavnC=Ovnatvnthevnend.vnTherevnisvnanvnHvnattachedvntovnthevnCvnofvnt
hevnC=O.

Whatvnisvnthevnrelationshipvnbetweenvnthevncompoundsvnshown?vnArevntheyvnthevnsamev
ncompound,vnconstitutionalvnisomers,vnorvntwovndifferentvncompoundsvnthatvnarevnnotvnr

elatedvntovnonevnanother?vnExplain.vn-vncorrectvnanswer✔ ✔
Differentvncompoundsvnthatvnarevnnotvnrelated.vnTheyvnhavevndifferentvnMFvn-
vn(a)vnC3H8O,vn(b)vnC3H6O.

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Uploaded on: August 20, 2026
Number of pages: 9
Written in: 2026/2027
Type: Exam (elaborations)
Contains: Questions & answers

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