WorksheetsPrecipitation Quiz
Total questions: 36
Worksheet time: 2hrs 8mins
An aqueous solution is:
any liquid with another compound dissolved in it.
an ionic compound with water dissolved in it.
water with another compound dissolved in it.
none of the above
Which of the following compounds is SOLUBLE?
copper carbonate
calcium carbonate
potassium carbonate
strontium carbonate
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 statements about writing a chemical, complete and net ionic equations is FALSE?
A molecular equation is a chemical equation showing the complete, neutral formulas for every compound in a reaction
A complete ionic equation is a chemical equation showing all of the species as they are actually present in solution.
A net ionic equation is an equation showing only the species that actually participate in the reaction.
A spectator ion remains unchanged in the reaction and appears on both sides of the equation.
All of the statements are true
Which of the following compounds is INSOLUBLE?
magnesium phosphate
magnesium sulfate
magnesium iodide
magnesium nitrate
none of the above
Precipitation reactions: when chemicals in a solution react to form ___
a gas
a liquid
a solid
rain
When some ionic compounds form through reactions in solution, they fall out as a ___
consolidated element
heavy sludge
dense discharge
solid precipitate
Cations are ___
positively charged ions
negatively charged ions
attracted to bar magnets
repelled by bar magnets
Anions are ___
positively charged ions
negatively charged ions
attracted to bar magnets
repelled by bar magnets
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)
When solutions of two ionic compounds are combined and a solid forms, the process is called
hydration
solvation
dissociation
precipitation
Precipitation is an example of what type of reaction?
single replacement
double replacement
decomposition
composition
Which of the following pairs of solutions produces a precipitate when combined?
Cu(NO3)2 and NaCl
Fe(NO3)3 and MgCl2
Cu(NO3)2 and K2CO3
CaCl2 and NaNO3
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
Which of these results in the formation of a precipitate?
AgNO3(aq) + NaOH(aq)→
Ba(NO3)2(aq) + CaCl2(aq)→
NaNO3(aq) + KOH(aq)→
More than one of these form precipitates
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
