Answer To Review HW For 2nd Section Chemical Reactions And Redox Reaction Test - Revised 2009

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Part I
1a. Ca1(NO3)2
1b. Lead (IV) sulfite
1c. Pentanitrogen dichloride
1d. Cu1(CO3)1
1e. Tin (IV) sulfide

Part II
1a. when given info from both reactants, need to determine which reactant runs out first and stops reaction from continuing.
1b. Limiting reactant - reactant that runs out first, excess reactant - one left over after reaction stops

2. 7.26g Ca, %yield of Ca = 109%

Part III
a. net ionic reaction = 2 Al + 3 Zn2+ --> 2 Al3+ + 3 Zn
b. net ionic reaction = 1 Ca2+ + 1 SO32- --> 1 Ca(SO3)1 (s)
c. No reaction

Part IV
a. Cu0 is oxidized, Ag+1 is reduced, Ag1(NO3)1 is oxidizing agent, Cu is reducing agent, coefficients: 1,2,1,2

b. Zn is oxidized, N+5 is reduced
HNO3 is oxidizing agent , Zn is reducing agent, coefficients: 1,4,1,2,2

c. C-3 is oxidized, O2 is reduced
O2 is oxidizing agent , C2H6 is reducing agent, coefficients: 2,7,4,6


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Last edited March 9, 2015 10:50 am (diff)
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