Chapter 8 : Practice Test HONORS CHEMISTRY
An aqueous solution of ammonium sulfate is allowed to react with an aqueous solution of lead(II) nitrate. What is the coefficient of the solid in the balanced equation (in standard form)?
A.) 1
When the equation Fe2(SO4)3(aq) + Ba(OH)2(aq) --> is completed and balanced, a term in the balanced molecular equation is
A.) 2Fe(OH)3(s)
An aqueous solution of ammonium sulfate is allowed to react with an aqueous solution of lead(II) nitrate. The complete ionic equation contains which of the following species (when balanced in standard form)?
A.) 2NH4(aq)
Identify the solid product that forms when the following aqueous solutions are mixed: Na2S(aq) + AgNO3(aq) -->
A.) Ag2S
AgNO3(aq) + NH4Cl(aq) -->
A.) AgCl(s)
Identify the solid product that forms when the following aqueous solutions are mixed: Na2CrO4(aq) + BaCl2(aq) -->
A.) BaCrO4
An aqueous solution of sodium carbonate is reacted with an aqueous solution of calcium chloride. Identify the solid in the balanced equation.
A.) CaCO3
How many electrons are transferred in the following oxidation-reduction reaction? Zn(s) + 2AgNO3(aq) --> Zn(NO3)2(aq) + 2Ag(s)
B.) 2
Identify the solid product that forms when the following aqueous solutions are mixed: AgNO3(aq) + BaCl2(aq) -->
B.) AgCl
The scientist who discovered the essential nature of acids through solution conductivity studies is
B.) Arrhenius
Identify the solid product that forms when the following aqueous solutions are mixed: KNO3(aq) + BaCl2(aq) -->
B.) No solid forms.
Which of the following statements is not true?
B.) When two nonmetals react, the compound formed is ionic.
In what type of reaction is water always a product?
B.) acid-base
The _____ equation contains only those substances directly involved in reactions in aqueous solutions.
B.) net ionic
A reaction that involves a transfer of electrons is called a(n) _____ reaction.
B.) oxidation-reduction
The reaction AgNO3(aq) + NaCl(aq) --> AgCl(s) + NaNO3(aq) is a(n) _____ reaction.
B.) precipitation
When an acid reacts with a base, which product always forms?
B.) water
When a precipitation reaction occurs, the ions that do not form the precipitate
B.) Are left dissolved in the solution
An aqueous solution of sodium carbonate is reacted with an aqueous solution of calcium chloride. What is the coefficient of the solid in the balanced equation (in standard form)?
C.) 1
How many of the following are oxidation-reduction reactions? I. reaction of a metal with a nonmetal II. synthesis III. combustion IV. precipitation V. decomposition
C.) 4
When the following equation is balanced, what is the coefficient in front of the underlined substance? C2H2(g) + O2(g) --> CO2(g) + H2O(l)
C.) 5
Classify the following reaction: HNO3(aq) + KOH(aq) --> KNO3(aq) + H2O(l).
C.) acid-base
The reaction 2K(s) + Br2(l) --> 2KBr(s) is a(n) _____ reaction.
C.) oxidation-reduction
The equation 2Al(s) + 2Br3(l) --> 2AlBr3(s) is a(n) _____ reaction.
C.) oxidation-reduction and synthesis
A substance that, when dissolved in water, produces a solution that conducts electric current very efficiently is called
C.) A strong electrolyte
When the equation NaOH(aq) + H2SO4(aq) --> is completed and balanced in standard form, one of the terms in the balanced equation is
D.) 2H2O(l)
When the following equation is balanced, what is the coefficient for H2O? Ca(OH)2(aq) + H3PO4(aq) --> Ca3(PO4)2(s) + H2O(l)
D.) 6
Which of the following is a salt?
D.) MgC2
True or False: The equation 2C2H6 + 7O2 --> 4CO2 + 6H2O is an oxidation-reduction reaction.
D.) True, the carbon is oxidized and the oxygen is reduced.
The reaction HCl(aq) + KOH(aq) --> H2O(l) + KCl(aq) is a(n) _____ reaction.
D.) acid-base
The most common factors that cause chemical reactions to occur are all of the following except
D.) A decrease in temperature
The net ionic equation contains which of the following species (when balanced in standard form)?
E.) 2-(aq)CO3
The complete ionic equation contains which of the following species (when balanced in standard form)?
E.) 2Na+(aq)
Classify the following reaction: 2Mg(s) + O2(g) --> 2MgO(s).
E.) Oxidation-reduction, combustion, and synthesis are all correct.
The net ionic equation contains which of the following species (when balanced in standard form)?
E.) Pb2+(aq)
An aqueous solution of ammonium sulfate is allowed to react with an aqueous solution of lead(II) nitrate. Identify the solid in the balanced equation.
E.) PbSO4
An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. Identify the solid in the balanced equation.
E.) There is no solid formed when the two solutions are mixed.
The equation CH4(g) + 2O2(g) --> CO2(g) + 2H2O(g) is a(n) _____ reaction.
E.) two of these
The equation 2Ag2O(s) --> 4Ag(s) + O2(g) is a(n) _____ reaction.
E.) two of these
