Reaction Prediction Practice Worksheet #1
Reaction Prediction Practice Worksheet #1
Write formulas for the reactants and predicted products for the chemical reactions that follow. Assume that in all cases a reaction occurs. Write all substances in their proper form—as ions if appropriate—and cancel any spectator ions. Assume that the reactions are in aqueous solution unless otherwise stated.
a) Solid calcium carbonate is strongly heated.
b) Hydrogen sulfide gas is bubbled into a solution of mercury(II) chloride.
c) Phosphorus(V) oxide powder is sprinkled over distilled water.
d) A bar of zinc metal is immersed in a solution of copper(II) sulfate.
e) A small piece of sodium metal is added to distilled water.
f) Solid barium oxide is added to distilled water.
g) Solid ammonium carbonate is heated.
h) Solutions of manganese(II) sulfate and ammonium sulfide are mixed.
Reaction Prediction Practice Worksheet #2
Write formulas for the reactants and predicted products for the chemical reactions that follow. Assume that in all cases a reaction occurs. Write all substances in their proper form—as ions if appropriate—and cancel any spectator ions. Assume that the reactions are in aqueous solution unless otherwise stated.
a) Sulfur trioxide gas is added to excess water.
b) Carbon disulfide vapor is burned in excess oxygen.
c) Solutions of sodium iodide and lead nitrate are mixed.
d) Dilute hydrochloric acid is added to a solution of potassium carbonate.
e) A strip of magnesium is added to a solution of silver nitrate.
f) Solid potassium chlorate is heated in the presence of a manganese dioxide catalyst.
g) A solution of hydrogen peroxide is heated.
h) Solid copper(II) sulfide is heated strongly in oxygen gas.
Reaction Prediction Practice Worksheet #3
Write formulas for the reactants and predicted products for the chemical reactions that follow. Assume that in all cases a reaction occurs. Write all substances in their proper form—as ions if appropriate—and cancel any spectator ions. Assume that the reactions are in aqueous solution unless otherwise stated.
a) A piece of aluminum metal is added to a solution of silver nitrate.
b) A piece of solid bismuth is heated strongly in oxygen.
c) Solid ammonium carbonate is heated.
d) Propanol is burned completely in air.
e) Equal volumes of 0.1 M sulfuric acid and 0.1 M potassium hydroxide are mixed.
f) An excess of sodium hydroxide solution is added to a solution of magnesium nitrate.
g) Solid lithium hydride is added to water.
Reaction Prediction Practice Worksheet #1 Solutions
Write formulas for the reactants and predicted products for the chemical reactions that follow. Assume that in all cases a reaction occurs. Write all substances in their proper form—as ions if appropriate—and cancel any spectator ions. Assume that the reactions are in aqueous solution unless otherwise stated.
a) Solid calcium carbonate is strongly heated.
CaCO3(s) ( CaO(s) + CO2(g)
b) Hydrogen sulfide gas is bubbled into a solution of mercury(II) chloride.
H2S(g) + Hg2+(aq) ( HgS(s) + 2H+(aq) or
H2S(g) + HgCl2(aq) ( HgS(s) + 2H+(aq) + 2Cl-(aq)
c) Phosphorus(V) oxide powder is sprinkled over distilled water.
P4O10(s) [or P2O5(s)] + 6H2O(l) ( 4H3PO4(aq)
d) A bar of zinc metal is immersed in a solution of copper(II) sulfate.
Zn(s) + Cu2+(aq) ( Zn2+(aq) + Cu(s)
e) A small piece of sodium metal is added to distilled water.
Na(s) + 2HOH(l) ( Na+(aq) + 2OH-(aq) + H2(g)
f) Solid barium oxide is added to distilled water.
BaO(s) + HOH(l) ( Ba2+(aq) + 2OH-(aq)
g) Solid ammonium carbonate is heated.
(NH4)2CO3(s) ( 2NH3(g) + CO2(g) + H2O(g)
h) Solutions of manganese(II) sulfate and ammonium sulfide are mixed.
Mn2+(aq) + S2-(aq) ( MnS(s)
Reaction Prediction Practice Worksheet #2 Solutions
Write formulas for the reactants and predicted products for the chemical reactions that follow. Assume that in all cases a reaction occurs. Write all substances in their proper form—as ions if appropriate—and cancel any spectator ions. Assume that the reactions are in aqueous solution unless otherwise stated.
a) Sulfur trioxide gas is added to excess water.
SO3(g) + H2O(l) ( H+(aq) + HSO4-(aq) [or H+(aq) + SO42-(aq)]
b) Carbon disulfide vapor is burned in excess oxygen.
CS2(g) + 2O2(g) ( CO2(g) + 2SO2(g) [or SO3(g)]
c) Solutions of sodium iodide and lead nitrate are mixed.
2I-(aq) + Pb2+(aq) ( PbI2(s)
d) Dilute hydrochloric acid is added to a solution of potassium carbonate.
2H+(aq) + CO32-(aq) ( CO2(g) + H2O(l) [or H2CO3(aq) or HCO3-(aq)]
e) A strip of magnesium is added to a solution of silver nitrate.
Mg(s) + Ag+(aq) ( Mg2+(aq) + AG(s)
f) Solid potassium chlorate is heated in the presence of a manganese dioxide catalyst.
2KClO3(s) (in presence of MnO2) ( 2KCl(s) + 3O2(g)
g) A solution of hydrogen peroxide is heated.
2H2O2(aq) ( 2H2O(l) + O2(g)
h) Solid copper(II) sulfide is heated strongly in oxygen gas.
CuS(s) + O2(g) ( Cu(s) + SO2(g) [or CuO(s)\Cu2O(s) + SO2(g)]
Reaction Prediction Practice Worksheet #3 Solutions
Write formulas for the reactants and predicted products for the chemical reactions that follow. Assume that in all cases a reaction occurs. Write all substances in their proper form—as ions if appropriate—and cancel any spectator ions. Assume that the reactions are in aqueous solution unless otherwise stated.
a) A piece of aluminum metal is added to a solution of silver nitrate.
Al(s) + 3Ag+(aq) ( Al3+(aq) + 3Ag(s)
b) A piece of solid bismuth is heated strongly in oxygen.
4Bi(s) + 3O2(g) ( 2Bi2O3(s)
c) Solid ammonium carbonate is heated.
(NH4)2CO3(s) ( 2NH3(g) + CO2(g) + H2O(g)
d) Propanol is burned completely in air.
2C3H7OH(l) + 9O2(g) ( 6CO2(g) + 8H2O(g)
e) Equal volumes of 0.1 M sulfuric acid and 0.1 M potassium hydroxide are mixed.
H+(aq) + OH-(aq) ( HOH(l)
f) An excess of sodium hydroxide solution is added to a solution of magnesium nitrate.
2OH-(aq) + Mg2+(aq) ( Mg(OH)2(s)
g) Solid lithium hydride is added to water.
LiH(s) + HOH(l) ( Li+(aq) + OH-(aq) + H2(g)
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