Chemical Science Final A1
Which of the following will be spectator ions in the reaction in aqueous solution of barium nitrate and potassium phosphate?
K+ and NO3-
Which of the following will be spectator ions in the reaction in aqueous solution of lead(II) nitrate and potassium chloride?
K+ and NO3-
An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The molecular equation contains which one of the following terms (when balanced in standard form)?
KNO3(aq)
Which of the following will not be spectator ions in the reaction in aqueous solution of lead(II) nitrate and potassium chloride?
Pb2+ and Cl-
An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. Identify the solid in the balanced equation.
There is no solid formed when the two solutions are mixed.
The equation 2C2H6 + 7O2 → 4CO2 + 6H2O is an oxidation-reduction reaction. True or false, and why?
True; the carbon is oxidized, and the oxygen is reduced.
Which of the following statements is not true?
When two nonmetals react, the compound formed is ionic.
Which of the following is a strong acid?
hydrochloric acid Nitric acid sulfuric acid
Which of the following is NOT a strong acid or strong base?
magnesium hydroxide phosphoric acid
A reaction that involves a transfer of electrons is called a(n) ______________ reaction.
oxidation-reduction
The reaction 2K(s) + Br2(l) → 2KBr(s) is a(n) ______________ reaction.
oxidation-reduction
The equation 2Al(s) + 2Br2(l) → 2AlBr3(s) is a(n) ______________ reaction.
oxidation-reduction and synthesis
The reaction AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) is a(n) ______________ reaction.
precipitation
CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)
two of these
The equation 2Ag2O(s) → 4Ag(s) + O2(g) is a(n) ______________ reaction.
two of these
The scientist who discovered the essential nature of acids through solution conductivity studies is
Arrhenius
Which of the following will be spectator ions in the reaction in aqueous solutions of silver nitrate and potassium chloride?
K+ and NO3-
Which of the following will not be spectator ions in the reaction in aqueous solution of barium nitrate and potassium phosphate?
Ba2+ and PO43-
An aqueous solution of sodium carbonate is allowed to react with an aqueous solution of magnesium chloride. What is the coefficient of the solid in the balanced equation (in standard form)?
1
An aqueous solution of sodium sulfate is allowed to react with an aqueous solution of barium nitrate. What is the coefficient of the solid in the balanced equation (in standard form)?
1
When the following equation is balanced in standard form, what is the coefficient in front of the H2O? C8H18(g) + O2(g) CO2(g) + H2O(g)
18
How many electrons are transferred in the following oxidation-reduction reaction? Zn(s) + 2AgNO3(aq) → Zn(NO3)2(aq) + 2Ag(s)
2
An aqueous solution of sodium 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)?.
2Na+(aq)
An aqueous solution of sodium sulfide is allowed to react with an aqueous solution of magnesium chloride. The complete ionic equation contains which of the following species (when balanced in standard form)?
2Na+(aq)
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
4
When the following equation is balanced, what is the coefficient for H2O? Ca(OH)2(aq) + H3PO4(aq) → Ca3(PO4)2(s) + H2O(l)
6
Which of the following will not be spectator ions in the reaction in aqueous solutions of silver nitrate and potassium chloride?
Ag+ and Cl-
Which of the following ionic compounds is insoluble in water?
AgCl BaSO4 CaSO4 PbSO4 PbCl2 Hg2Cl2 (not BaCl2 or Fe2(SO4)3 ) If all else fails pick the last one
Which drawing best represents the mixing of aqueous calcium chloride with aqueous potassium sulfate when they are mixed in stoichiometric amounts (neither reactant is limiting)?
B. black bottom with 2 K+ and 2 Ci- floating around
An aqueous solution of ammonium carbonate is allowed to react with an aqueous solution of barium chloride. Identify the solid in the balanced equation.
BaCO3
An aqueous solution of ammonium carbonate is allowed to react with an aqueous solution of magnesium chloride. The complete ionic equation contains which of the following species (when balanced in standard form)?
CO32-(aq)
An aqueous solution of ammonium sulfate is allowed to react with an aqueous solution of calcium nitrate. The net ionic equation contains which of the following species (when balanced in standard form)?.
Ca2+(aq)
An aqueous solution of potassium sulfate is allowed to react with an aqueous solution of calcium nitrate. Identify the solid in the balanced equation.
CaSO4
An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The complete ionic equation contains which of the following species (when balanced in standard form)?
Cl-(aq)
Given the solubility rules from the book, which of the following metal hydroxides should be soluble in water?
LiOH
Which of the following ionic compounds is soluble in water?
Na2S Na2CO3 Na3PO4 K3PO4 (NH4)3PO4 (NH4)2CO3 (NH4)2S K2CO3 K2S CaSO4 K2S (Not MgCO3 or not CaS) choose A if all else fails
An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The net ionic equation contains which of the following species (when balanced in standard form)?
No net ionic equation exists for this reaction.
The factors that most commonly cause chemical reactions to occur are all the following except
a decrease in temperature
A substance that, when dissolved in water, produces a solution that conducts electric current very efficiently is called
a strong electrolyte
Classify the following reaction: 2Mg(s) + O2(g) → 2MgO(s)
a-c are all correct.
Classify the following reaction: HNO3(aq) + KOH(aq) → KNO3(aq) +H2O(l)
acid-base
In what type of reaction is water always a product?
acid-base
The reaction HNO3(aq) + KOH(aq) H2O(l) + KNO3(aq) is a(n) ________ reaction.
acid-base
When a precipitation reaction occurs, the ions that do not form the precipitate
are left dissolved in the solution