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25 questions
Which of the following compounds is SOLUBLE?
copper carbonate
calcium carbonate
potassium carbonate
strontium carbonate
When solid NaCl is stirred into water, which of the following is NOT true?
Individual sodium and chloride ions are present.
The solution will conduct electricity.
The solution will taste salty.
The NaCl will fail to dissociate.
In writing the chemical equation for a precipitation reaction, what abbreviation of the physical state must appear with one of the products?
(s)
(g)
(l)
(w)
What would be the formula of the precipitate that forms when Pb(NO3)2 (aq) and K2SO4 (aq) are mixed?
K(NO3)2
PbSO4
PbK2
H2O
Considering the following precipitation reaction:
Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq)
Which compound would not form ions in the complete ionic equation?
PbI2
KNO3
Pb(NO3)2
KI
Considering the following precipitation reaction:
Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq)
Which ion would NOT be present in the complete ionic equation?
Pb2+
K+
NO3-
I-
All the above ions are in the complete ionic equation.
Considering the following precipitation reaction:
Pb(NO3)2(aq) + 2KI(aq) → PbI2(s) + 2KNO3(aq)
What is the correct complete ionic equation?
Pb2+ + (NO3)2- + 2K+ + 2I- → PbI2(s) + 2K+ + 2NO3-
Pb2+ + 2NO3- +2K+ + I- → PbI2(s) + 2K+ + NO3-
Pb2+ + 2NO3- + 2K+ + 2I- → PbI2(s) + 2K+ + 2NO3-
Pb2+ + 2NO3- + 2K+ + 2I- → Pb2+ + 2I- + 2K+ + 2NO3-
Which of the following compounds is INSOLUBLE?
magnesium phosphate
magnesium sulfate
magnesium iodide
magnesium nitrate
none of the above
What is the net ionic equation for the precipitation reaction between BaCl2 and Na2SO4?
BaCl2(aq) + Na2SO4(aq) --> BaSO4(s) + 2NaCl(aq)
Na+(aq) + Cl-(aq) --> NaCl(s)
Ba2+(aq) + SO42-(aq) --> BaSO4(s)
Ba2+(aq) + 2Cl-(aq) + 2 Na+(aq) + SO42-(aq) --> BaSO4(s) + 2Cl-(aq) + 2Na+(aq)
Precipitation is an example of what type of reaction?
single replacement
double replacement
decomposition
composition
When solutions of MgCO3 and Fe2(SO4)3 are combined, what precipitate(s) forms?
MgSO4
neither form a precipitate
MgSO4 and Fe2(CO3)3
Fe2(CO3)3
When solutions of MgCO3 and Fe2(SO4)3 are combined, what precipitate(s) forms?
MgSO4
neither form a precipitate
MgSO4 and Fe2(CO3)3
Fe2(CO3)3
Identify the spectator ion(s) in the equation: 2Ag+(aq) + 2NO3–(aq) + 2Na+(aq) + S2–(aq) --> Ag2S(s) + 2Na+(aq) + 2NO3–(aq)
2Ag+(aq) + 2NO3–(aq)
2Na+(aq) + 2NO3–
2Na+(aq) + S2–(aq)
Ag2S(s) + 2Na+(aq
In the laboratory, a student mixes aqueous solutions of NiSO4 and NaOH. What will the precipitate be?
Ni(OH)2
Na2SO4
SO2
no precipitate will form
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