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5.02 SCOS KELLY BAXLEY
Test Description: L. write and balance chemical equations 2. write net ionic reactions 3. predict and write formulas using the refrence table
Instructions: Answer all questions to get your test result.
1) Which equation is balanced correctly?
A
2Cu(s) + O2(g) -->2CuO(s)
B
Fe(s) + 4H2O(g)-->4H2(g) + Fe3O4(s)
C
2Na(s) + ZnI2(aq)-->2NaI2(aq) + Zn(s)
D
2Cu(s) + 2O2 (g)-->2O2(g) + 2Cu(s)
2) Write a balanced equation for: Solid dinitrogen pentoxide is added to water.
A
NO2 + H2O→ 2H + NO2
B
2NO3 + H2O→ H2 + 2NO3
C
3NO4 + H2O→ H2 + NO2
D
N2O5 + H2O → 2H + 2NO3
3) BaO is a(n):
A
Anion
B
Cation
C
Ionic Compound Formula
D
None of the above
4) Using the complete ionic equation 2K(aq)+2Cl(aq)+Pb(aq)+2NO3(aq) → 2K(aq)+2NO3+PbCl2(s) which answer choice is the net ionic equation?
A
3Cl(aq)+Pb(aq)-->PbCl3(s)
B
2Cl(aq)+Pb(aq)-->PbCl2(s)
C
2K+NO3-->2K+NO3
D
NO3(aq)-->2NO3(aq)
5) Write the net ionic equations for Na3PO4(aq) + 3 AgNO3(aq) 3 NaNO3(aq) + Ag3PO4(s)
A
3 Ag(aq) + PO4(aq)–> Ag3PO4(s)
B
3Ag(aq)+3Na(aq)-->3AgNa(aq)
C
NO3(aq)+Na(s)-->NaNO3(s)
D
NO3(aq)+Ag(s)-->NO3Ag(s)
6) Which of the following is Na3PO4(aq) + AgNO3(aq) --> NaNO3(aq) + Ag3PO4(s) properly balanced?
A
Na3PO4(aq) + AgNO3(aq) --> NaNO3(aq) + Ag3PO4(s)
B
Na3PO4(aq)+3AgNO3(aq)-->3NaNO3(aq)+Ag3PO4(s)
C
Na3PO4(aq)+3AgNO3(aq)-->NaNO3(aq)+Ag3PO4(s)
D
2Na3PO4(aq)+AgNO3(aq)-->2NaNO3(aq)+Ag3PO4(s)
7) Which of the following is not an ionic compound formula?
A
CsBr
B
KI
C
H2
D
LiI
8) Which of the following is the net ionic equation for Pb(NO3)2(aq) + Na2SO4(aq) --> PbSO4(s) + 2 NaNO3(aq)?
A
Pb(aq) + SO4(aq) --> PbSO4(s)
B
Pb(aq)+NO3(aq)-->Pb(s)+NO3(aq)
C
NaSO4(aq)+Pb(aq) --> PbSO4(aq)+Na(aq)
D
PbSO4(s) --> 2 NaNO3(aq)
9) Write Carbon + Oxygen --> Carbon Monoxide as a balanced equation.
A
3 C2(s) + 3O2(g) --> 6 CO(g)
B
2 C(s) + O2(g) --> 2 CO(g)
C
C(s) + O(g) --> CO(g)
D
C2(s) + O2(g) --> 2CO(g)
10) Write a net ionic equation for 6 Na+ (aq) + 2 PO43- (aq) + 3 Ca2+ (aq) + 6 Cl- (aq) --> 6 Na+ (aq) + 6 Cl- (aq) + Ca3(PO4)2 (s)
A
6 Na(aq) + 6 Cl(aq) --> 6 Na(aq) + 6 Cl(aq)
B
2 PO4 (aq) + 3 Ca (aq) --> Ca3(PO4)2 (s)
C
6 Na(aq) + 3 Ca(aq) --> 6NaCa(aq)
D
6 Na(aq) + 2 PO4(aq) --> 6 Na(aq) + 2 PO4(aq)
*select an answer for all questions
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