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Unit 7 Review (Honors)
Test Description: Unit 7 Test
Instructions: Answer all questions to get your test result.
1) Which of the following would be a precipitate in aqueous solution?
A
PbSO4
B
Na2CO3
C
Ca(NO3)2
D
KOH
2) If LiCl(aq) and AgNO3(aq) are reacted, which ions are the spectators?
A
Li+1 and Cl-1
B
Cl-1 and Ag+1
C
Li+1 and NO3-1
D
All ions, because this example results in no reaction.
3) Which metal could react with Fe(NO3)3 in a single replacement reaction?
A
Nickel
B
Potassium
C
Silver
D
Gold
4) What products are created when NaOH decomposes?
A
NaO and H2O
B
Na and OH
C
Na2O and H2O
D
Na, O2, and H2
5) Which element is NOT diatomic?
A
N
B
C
C
Br
D
F
6) Which gas results in a splint test that re-ignites?
A
H2O
B
H2
C
O2
D
CO2
7) Which characteristic is representative of combustion reactions?
A
A color change occurs.
B
A precipitate is formed.
C
The products are aqueous.
D
Energy, such as heat or light, is produced.
8) What are the product(s) of the following reaction? Li + H2O = ?
A
LiOH + H2
B
Li2O + H2
C
LiO + H
D
LiOH
9) Which type of reaction involves the formation of one product?
A
Single Replacement
B
Decomposition
C
Combustion
D
Synthesis
10) *Know your nomenclature*! What is the chemical formula for sulfuric acid?
A
H2S
B
H2SO3
C
HSO3
D
H2SO4
*select an answer for all questions
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