NAME_______________________________________________________________________________________PERIOD_______
STUDY GUIDE & REVIEW PACKET
TEST:Unit10ChemicalReactions
Test(1)onStoichiometry
TOPICS:
TESTFORMAT:
• Partsofchemicalreaction *10multiplechoice(3ptseach)
• Balancingchemicalequations
*OPENRESPONSE:
• MoleRatios 4Stoichiometryproblems(5ptseach)
• Stoichiometry
TOOLBOXPROVIDED:
*PeriodicTable
*MoleTunnel
Parts of Chemical Equation
1) DefineREACTANTS:
2) DefinePRODUCTS:
Usingthechemicalequationabove,answerthefollowing:
CaO(s)+H2O(g)Ca(OH)2(aq)
3) Whatarethereactants?________________________________________
4) Whataretheproducts?________________________________________
5) Whatdoesthearrowsymbol“mean”?________________________________________
6) Whatdoesthesymbol(s)meanforCaO?________________________________________
7) InwhichstateofmatterisH2O?_______________________________________
8) ThesubstanceCa(OH)2hasthesymbol(aq).WhatdoesthismeanaboutCa(OH)2?
9) Whatdothecoeffecientsinachemicalequationrepresent?
10)Whatdothesubscriptsinachemicalequationmean?
11)Practice:Howmanyofeachtypeofatomisrepresented?
3Cl2_______ Fe_______
2S8_______ MgF2_______________________
I2_______
4Ni_______ 2Li2O______________________ H2O2_______________________
H2SO4________________________________ 2Pb(NO3)2_________________________________
Balancing Chemical Equations
12)WhatistheORDERoftypesofelementstoworkwithinMrs.Howland’s“recipeforsuccess”
withbalancingchemicalequations?
1)
2)
3)
4)
WhatistheLawofConservationofMass?
Balancethefollowingequations:
12)______H2+______O2______H2O 13)______Na+______S8______Na2S
14)______NaHCO3______Na2CO3+______CO2+______H2O(challenge!!)
15)______Al+______CuO______Al2O3+______Cu
16)______K2O+______H2O______KOH Mole Ratios and Stoichiometry
17)Whatdomoleratiosrepresent/whatarethey?
(CheckthroughhandoutsandPowerPointNotesPart2inUnit10BEFOREyouaskMrs.
Howlandorsaythatyouhave“noidea!!!”Wehavetalkedaboutthisalot.)
N2+3H22NH3
18)Usingthechemicalequationabove,writethemoleratiosforeachofthefollowingpairsof
substances:
N2/H2 H2/NH3
N2/NH3
Usingthe“MoleTunnel”(stepstocalculatestoichiometryconversiongramstograms),andthe
informationgiven,calculatethefollowing:
22)Usingthefollowingequation:
2I2+KIO3+6HCl--------->5ICl+KCl+3H2O
Calculatehowmanygramsofiodineareneededtoprepare28.6gramsofIClbythis
reaction.
23)Usingthefollowingequation:
5KNO2+2KMnO4+3H2SO4------>5KNO3+2MnSO4+K2SO4+3H2O
HowmanymolesandhowmanygramsofKMnO4areneededtocarryoutthisreactionon
11.4gramsofKNO2?
24)Usingthefollowingequation:
4NH3+5O2----------->4NO+6H2O
Howmanymolesandhowmanygramsofoxygen(O2)areneededtoreactwith56.8grams
ofammoniabythisreaction?
25)Usingthefollowingequation:
NaIO3+6HI------------>3I2+NaI+3H2O
Calculatethenumberofmolesandthenumberofgramsofiodine(I2)thatcanbemadethis
wayfrom16.4gramsofNaIO3.