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Part I
1a. Ca1(NO3)2
1b. Lead (IV) sufite
1c. Pentanitrogen dichloride
1d. Cu1(CO3)2
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. 1.38g Ca, %yield of Ca = 54.4%
2a. net ionic reaction = 2 Al + 3 Zn+2 --> 2 Al+3 + 3 Zn
2b. net ionic reaction = 1 Ca+2 + 1 SO3-2 --> 1 Ca(SO3)1 (s)
3. 54.5%
4. Zn is oxidized, N in HNO3 is reduced
HNO3 is oxidizing agent , Zn is reducing agent