Quia - Quiz Preview
2nd Semester: Chemistry Weekly Quiz #5 (2/6 - 2/9) - Chapter 7 and 8
Make sure to remember your username and password!
This will be available from 2:50 pm Friday afternoon to 7:45 am Monday morning.
This quiz can be taken multiple times BUT the first attempt is the score I will record. (this will be for accuracy)
Make sure to double check your answers if you have used a paper quiz. The choices will be the same but the answers will
be different.
1. Which of the following are signs of a Chemical Reaction? (CHOOSE ALL CORRECT ANSWERS) (1 point)
A change in color.
Change of state from solid to liquid.
Production of gas (bubbles).
A release of heat (increase in temperature).
Production of light.
Loud noises.
Forming a precipitate.
2. Balance and classify the following reaction:
___ H 2 SO4 + ___ NaOH --> ___ Na 2 SO4 + ___ H 2 O (1 point)
1:2:1:2 double replacement
1:2:1:2 single replacement
2:1:2:1 double replacement
2:1:2:1 single replacement
3. Predict the products of the reaction using the activity series.
_BaCl2 (s) + _Br2 (l) -> (1 point)
BaCl 2 (s) + Br 2 (l) -> ClBr + Ba
No Reaction
BaCl 2 (s) + Br 2 (l) -> BaBr2 + 1 Cl2
BaCl 2 (s) + Br 2 (l) -> BaBr2 Cl2
4. Balance and tell the type of chemical reaction:
___ Na 3 PO4 + ___ CaCl 2 --> ___ Ca 3 (PO 4 ) 2 + ___ NaCl (1 point)
2:3:1:3 double replacement
2:3:1:3 single replacement
2:3:1:6 double replacement
2:3:1:6 single replacement
http://www.quia.com/...447e5674a098eb05636010_i5sykmoe_6ln3&AE_atSessionStart=Y&tag_tab_type_input=0&tagPreviewFromTab=true[2/5/2015 8:34:55 PM]
Quia - Quiz Preview
5. Predict the products of the reaction using the activity series.
_Ba (s) + _Zn(NO 3 ) 2 (aq) -> (1 point)
Ba (s) + Zn(NO3 ) 2 (aq) -> BaZn + 2 NO 3
Ba (s) + Zn(NO3 ) 2 (aq) -> Zn + Ba(NO 3 ) 2
No Reaction
Ba (s) + Zn(NO3 ) 2 (aq) -> ZnBa(NO 3 ) 2
6. The term dissassociation refers to: (1 point)
Covalent compounds dissolving in water.
Ionic compounds forming a crystal lattice.
Cations and Anions attracting to eachother.
Cations and Anions separating from each other in solution.
7. Predict the products of the reaction using the activity series.
_Al (s) + _HCl (aq) -> (1 point)
2 Al (s) + 6 HCl (aq) -> 2 AlCl 3 + 3 H 2
2 Al (s) + 2 HCl (aq) -> 2 AlCl + H 2
2 Al (s) + 6 HCl (aq) -> 2 AlH 3 + 3 Cl2
No Reaction
8. Write and balance the following reaction: Hydrogen sulfide is produced when hydrogen combines with sulfur.
(1 point)
2H2 S --> 4H 2 + 2S
H 2 S --> H 2 + S
2H2 + S 2 --> 2H 2 S
H 2 + S --> H 2 S
9. Insoluble means: (1 point)
Liquid state
Can be dissolved.
Vapor
Can NOT be dissolved.
10. Balance and classify the following reaction:
___ H 2 O 2 --> ___ H 2 O + ___ O 2 (1 point)
http://www.quia.com/...447e5674a098eb05636010_i5sykmoe_6ln3&AE_atSessionStart=Y&tag_tab_type_input=0&tagPreviewFromTab=true[2/5/2015 8:34:55 PM]
Quia - Quiz Preview
2:2:1 decomposition
1:2:1 decomposition
1:2:1 synthesis
2:2:1 synthesis
11. Magnesium bromide + chlorine yield (1 point)
MgBrCl.
MgCl 2 and Br 2 .
MgCl and Br 2 .
Mg and BrCl.
No Reaction
12. Spectator Ions: (1 point)
Do not participate in the reaction because they stay in solution.
Do not participate in the reaction because the activity series says they can't.
Are the ions that form insoluble compounds.
Are molecular compounds.
13. Soluble means: (1 point)
Liquid state
Can be dissolved.
Can NOT be dissolved.
Vapor
14. Identify the NET IONIC Equation for the following chemical equation:
___ Ca(OH)2 (aq) + ___ K 3 PO4 (aq) --> ___ Ca 3 (PO 4 ) 2 (__) + ___ KOH (__) (1 point)
3 Ca 2+ (aq) + 6 OH - (aq) + 6 K + (aq) + 2 PO4 3- (aq) --> 3 Ca 2+ (aq) + 2 PO4 3- (aq) + 6 KOH (s)
6 OH - (aq) + 6 K + (aq) --> 1 6 KOH (s)
3 Ca 2+ (aq) + 6 OH - (aq) + 6 K + (aq) + 2 PO4 3- (aq) --> 1 Ca 3 (PO 4 ) 2 (s) + 6 K + (aq) + 6 OH - (aq)
3 Ca 2+ (aq) + 6 OH - (aq) + 6 K + (aq) + 2 PO4 3- (aq) --> 1 Ca 3 (PO 4 ) 2 (s) + 6 KOH (s)
3 Ca 2+ (aq) + 2 PO4 3- (aq) --> 1 Ca 3 (PO 4 ) 2 (s)
15. Identify the SPECTATOR IONS in the following chemical equation:
___ Ca(OH)2 (aq) + ___ K 3 PO4 (aq) --> ___ Ca 3 (PO 4 ) 2 (__) + ___ KOH (__) (1 point)
6 K + (aq)
2 PO4 3- (aq)
6 OH - (aq)
http://www.quia.com/...447e5674a098eb05636010_i5sykmoe_6ln3&AE_atSessionStart=Y&tag_tab_type_input=0&tagPreviewFromTab=true[2/5/2015 8:34:55 PM]
Quia - Quiz Preview
3 Ca 2+ (aq)
16. Identify the COMPLETE IONIC Equation for the following chemical equation:
___ Ca(OH)2 (aq) + ___ K 3 PO4 (aq) --> ___ Ca 3 (PO 4 ) 2 (__) + ___ KOH (__) (1 point)
3 Ca 2+ (aq) + 2 PO4 3- (aq) --> Ca 3 (PO 4 ) 2 (s)
3 Ca 2+ (aq) + 6 OH - (aq) + 6 K + (aq) + 2 PO4 3- (aq) --> Ca 3 (PO 4 ) 2 (s) + 6 KOH (s)
3 Ca 2+ (aq) + 6 OH - (aq) + 6 K + (aq) + 2 PO4 3- (aq) --> 3 Ca 2+ (aq) + 2 PO4 3- (aq) + 6 KOH (s)
6 OH - (aq) + 6 K + (aq) + --> 1 6 KOH (s)
3 Ca 2+ (aq) + 6 OH - (aq) + 6 K + (aq) + 2 PO4 3- (aq) --> Ca 3 (PO 4 ) 2 (s) + 6 K + (aq) + 6 OH - (aq)
17. A COMPLETE IONIC EQUATION includes: (1 point)
All the dissassociated ions present in the solution and any insoluble compounds formed.
Only the ions that form an insoluble compound.
Only the soluble ions in solution.
All the ionic compounds in a double replacement reaction.
18. What can be predicted by using an activity series? (1 point)
the melting points of elements
whether a certain chemical reaction will occur
the electronegativity values of elements
the amount of energy released by a chemical reaction
19. Balance and classify the following reaction:
___ C 6 H 12 + ___ O 2 --> ___ CO2 + ___ H 2 O (1 point)
1:6:6:6 single replacement
4:6:6:6 single replacement
1:9:6:6 combustion
4:6:6:6 combustion
20. Balance and classify the following reaction:
___ Cl2 + ___ KI --> ___ KCl + ___ I 2 (1 point)
1:2:1:2 single replacement
1:2:1:2 synthesis
1:2:2:1 synthesis
1:2:2:1 single replacement
http://www.quia.com/...447e5674a098eb05636010_i5sykmoe_6ln3&AE_atSessionStart=Y&tag_tab_type_input=0&tagPreviewFromTab=true[2/5/2015 8:34:55 PM]
Quia - Quiz Preview
21. Predict the products of the reaction using the activity series.
_Ca (s) + _O 2 (g) -> (1 point)
Ca (s) + O 2 (g) -> CaO 2
No Reaction
4 Ca (s) + O 2 (g) -> 2 Ca 2 O 2
2 Ca (s) + O 2 (g) -> 2 CaO
22. A NET IONIC EQUATION includes: (1 point)
Only the ions that form an insoluble compound.
All the ionic compounds in a double replacement reaction.
All the dissassociated ions present in the solution and any insoluble compounds formed.
Only the soluble ions in solution.
23. Balance and classify the following reaction:
___ C 2 H 2 + ___ O 2 --> ___ CO2 + ___ H 2 O (1 point)
2:5:4:2 combustion
2:5:2:4 double replacement
2:5:4:2 double replacement
2:5:2:4 combustion
24. Write, balance, and classify the following reaction;
sodium metal reacts with oxygen gas to produce sodium oxide. (1 point)
NaO 2 --> Na + O 2 decomposition
Na 2 O --> Na + O 2 decomposition
Na + O 2 --> NaO 2 synthesis
4 Na + O 2 --> 2Na2 O synthesis
Preview Results
http://www.quia.com/...447e5674a098eb05636010_i5sykmoe_6ln3&AE_atSessionStart=Y&tag_tab_type_input=0&tagPreviewFromTab=true[2/5/2015 8:34:55 PM]