CHEMl 103l /l CHEM103l Modulel 5:l
(Latestl 2025/l 2026l Update)l Generall Chemistryl Il W/l Labl |l Questionsl &l Answers|l Gradel A|l 100%l Correctl (Verifiedl Solutions)-l Portagel Learning
Q:l Explainl whetherl thel followingl materiall isl polar,l ionic,l orl nonpolar.l Describel whetherl itl isl solublel orl insolublel inl water.
HCl
Answer:
HCll Onel polarl bondl (H-Cl)l =l Polar Waterl solublel sincel likel dissolvesl likel andl waterl isl polar
Q:l Showl thel determinationl ofl thel chargel onl thel ionl formedl byl thel
Mg12l atom.
Answer:
Mg12l (metall =l losel electrons)l 1s2l 2s2l 2p6l 3s2 l losel 2el →l Mg+2
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Q:l Hl =l 2.1l Il =l 2.7
Lil =l 1.0l Bel =l 1.5l Bl =l 2.0l Cl =l 2.5l Nl =l 3.0l O=l 3.5l Fl =l 4.0 Nal =l 1.0l Mgl =l 1.2l All =l 1.5l Sil =l 1.8l Pl =l 2.1l Sl =l 2.5l Cll =l 3.0 Kl =l 0.8l Cal =l 1.0.l Gal =l 1.6l Gel =l 1.8l Asl =l 2.0l Sel =l 2.4l Brl =l 2.8
Usingl thel electronegativitiesl froml thel tablel above,l showl thel determinationl ofl thel polarityl ofl eachl differentl typel ofl bondl inl thel followingl molecule
Answer:
H-Cl bondl electronegativityl differencel =l 2.5l -l 2.1l =l 0.4l <0.5l bondl isl Nonpolar C-Cll bondl electronegativityl differencel =l 3.0l -l 2.5l =l 0.5l 1.6l -l 0.5l bondl isl Polar
Q:l Onl al piecel ofl scratchl paper,l drawl thel Lewisl structurel forl thel ClO2-1l ion.l Thenl choosel thel correctl Lewisl structurel forl ClO2-1l froml thel optionsl listedl below.
Answer:
B -1l chargel meansl thatl therel isl anl additionall electron.Cll =l 7 Ol =l 6l xl 2l =l 12 Totall =l 19l +l 1l =l 20l electrons
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