CHEMl 103l /l CHEM103l Modulel 2: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 Determinel whichl ofl thel followingl doublel replacementl reactionsl willl
occurl usingl thel solubilityl rulesl andl completel thel equationsl thatl do:
1.)l Ca^+2,l 2l Cl^-1l +l Al^+3,l 3l NO3^-1l →
2.)l Pb^+2,l 2l NO3^-1l +l 2l Na^+1,l 2l Br^-1l →
Answer:
1.)l Ca^+2,l 2l Cl^-1l +l Al^+3,l 3l NO3^-1l →l Willl notl occurl sincel neitherl setl ofl ionsl formsl al precipitate
2.)l Pb^+2,l 2l NO3^-1l +l 2l Na^+1,l 2l Br^-1l →l PbBr2l ↓l +l 2l Na^+1,l 2l
NO3^-1
Q:l Determinel whichl ofl thel followingl singlel replacementl reactionsl willl
occurl usingl thel activityl seriesl andl completel thel equationsl thatl do:
(Clickl herel Downloadl hereforl thel Activityl Series.)
1.)l Cl2l +l 2l F^-1l →
2.)l Bal +l Fe^+2l →
- / 2
Balancel thel followingl equationsl andl labell eachl reactionsl asl eitherl (1)l Combination,l (2)l Decomposition,l (3)l Combustion,l (4)l Doublel Replacementl orl (5)l Singlel Replacement.
3.l C6H12O6l +l O2l →l CO2l +l H20
4.l HCll +l NaOHl →l NaCll +l H2O
5.l All +l Fe(NO3)3l →l Fel +l Al(NO3)3
6.l Sl +l O2l →l SO3
7.l H2SO4l →l SO3l +l H2O
Answer:
1.l Cl2l +l 2l F^-1l →l Willl notl occurl sincel F2l isl morel activel thanl Cl2
2.l Bal +l Fe^+2l →l Fel +l Ba+2l Willl occurl sincel Bal isl morel activel thanl Fe
3.l C6H12O6l +l 6l O2l →l 6l CO2l +l 6l H2Ol Combustion
4.l HCll +l NaOHl →l NaCll +l H2Ol Doublel Replacement
5.l All +l Fe(NO3)3l →l Fel +l Al(NO3)3l Singlel Replacement
6.l 2l Sl +l 3l O2l →l 2l SO3l Combination
7.l H2SO4l →l SO3l +l H2Ol Decomposition
Q:l Showl thel calculationl ofl thel oxidationl numberl (charge)l ofl ONLYl thel atomsl whichl arel changingl inl thel followingl redoxl equationsl andl thenl showl
howl thosel chargesl arel usedl tol balancel thel followingl redoxl equations:
- / 2