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Portage Learning CHEM 121 Lab Report 4

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2026/2027 Written for academic year
Institution Portage Learning
Course CHEM 121
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Ace Portage Learning CHEM 121 with this complete Lab Report 4: Reaction Chemistry. Includes all 13 reactions, balanced equations, and observations. Instant download.

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ChemistrynLabnReport

Name:

Date:

Experimentn#:n4

Title:nReactionnChemistry

Purpose:nnThenpurposenofnthisnexperimentnisntonobservenvariousntypesnofnchemicalnreactionsnandnt
heirnresultsnwhichnincludensixntypesnofnsimplenchemicalnreactionsnandnreversiblenreactions.nAlso,nton
detectnchemicalnchanges,nexothermicnandnendothermicnreactionsnalongnwithncolornchangenreactions
nandndifferentnreactionsnwherenprecipitatesnform.nThenoxidation-

reductionnofnmethylenenbluenindicatornisnalsonperformedntondemonstratenthenreversibilitynofnanreacti
on.

Procedure:
Reactionn#1:nDoublenDisplacementnReaction
1. Beginnwithntwontestntubesnwithncolorlessnsolutions:nonencontainingnAgNO3n (silvernnitrate)n
andnonencontainingnHCln(hydrochloricnacid)
2. AddnthenHClntonAgNO3
3. Putnanstoppernonnandn invertnthentestntube.
4. Observe
5. Recordnresultsnbelow

Reactionn#2:nDoublenDisplacementnReaction
1. Beginnwithntwontestntubesnwithncolorlessnsolutions;nonencontainingnPb(NO3)2n (leadnnitrate)n
andnonencontainingnKIn(Potassiumniodide)
2. AddnthenKIntonPb(NO3)2
3. Putnanstoppernonnandn invertnthentestntube.
4. Observe
5. Recordnresultsnbelow

Reactionn#3:nAcidn–nBasenDoublenDisplacementnReaction
1. Beginnwithntwontestntubesnwithncolorlessnsolutions:nonencontainingnNaOHn(sodiumn
hydroxide)nandnonencontainingnHCln(hydrochloricnacid)
2. Takenthentemperaturenofneachnandnrecordnbelow.
3. AddnHClntonNaOHnandnmix.
4. Takenthentemperaturenofnthenmixture.
5. Recordnresultsnbelow

Reactionn#4:nAcid-BasenDoublenDisplacementnReaction
1. Beginnwithntwontestntubes:nonencontainingnNaHCO3n (Sodiumnbicarbonate)nandnonen
containingnHCln(hydrochloricnacid)
2. AddnthenHClntonNaHCO3
3. Observenangasnformationn(CO2n gas)
4. Recordnresultsnbelow

, ChemistrynLabnReport

Reactionn#5:nEndothermicnReaction
1. ObtainnanbeakerncontainingnNH4NO3
2. Takenthentemperature.
3. Addn(BaOH)2
4. Addnwaterntonhelpncombine.
5. Takenthentemperaturenofnthenmixture.
6. Takenanpiecenofnlitmusnpaperntonchecknfornanbase
7. Recordnresultsnbelow

Reactionn#6:nSinglenDisplacementnReaction
1. MixnZincnmetaln(greyncolor)nandnHCln(hydrochloricn acid)
2. Takenthentemperaturenbeforencombining.
3. Mixnthensolutions.
4. ObserventhenH2ngasnformation.
5. Takenthentemperature.
6. Recordnresultsnbelow

Reactionn#7:nSinglenDisplacementnReaction
1. BeginnwithnanbeakernwithnAgNO3n (silvernnitrate)nandnanbeakernofncopper.
2. CombinenthenAgNO3n withnthencopper.
3. Stir
4. Observe
5. Recordnresultsnbelow

Reactionn#8:nCombustionn(Burning)nReaction
1. Strikenanmatch.
2. Observe
3. Recordnresultsnbelow

Reactionn#9:nCombustionn(Burning)nReaction
1. Strikenanmatch.
2. Lightnancandle.
3. Observe
4. Recordnresultsnbelow

Reactionn#10:nDecompositionnReaction
1. Beginnwithntwontestntubes;nonencontainingnH2O2n (hydrogennperoxide)nandnonencontainingn
MnO2n(manganesendioxide)
2. CombinenthenH2O2nandnMnO2
3. Observe
4. Recordnresultsnbelow

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