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

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Part I 
1a. Ca1(<nowiki>NO</nowiki>3)2 
1b. Lead (<nowiki>IV</nowiki>) sulfite 
1c. Pentanitrogen dichloride 
1d. Cu1(CO3)1 
1e. Tin (<nowiki>IV</nowiki>) 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 <nowiki>SO</nowiki>32- --> 1 Ca(<nowiki>SO</nowiki>3)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 
<nowiki>HNO</nowiki>3 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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