Deck 4: Reactions in Aqueous Solutions

Question 1

Identify the major ionic species present in an aqueous solution of C₆H₁₂O₆ (glucose).

A)6 C^-, 12 H⁺, 6 O^-
B)6 C⁺, 12 H⁺, 6 O^2-
C)6 CH²⁺, 6 O^2-
D)C₆⁺, 12 H⁺, 6 O^2-
E)no ions are present

Answer 1

no ions are present

Question 2

Identify the major ionic species present in an aqueous solution of NH₄ClO₄.

A)NH₄⁺, Cl^-, 4O^2-
B)N^3-, 4H⁺, Cl^-, 4O^2-
C)4NH⁺, 4ClO^-
D)NH₄⁺, ClO₄^-
E)NH₄Cl⁺, O₄^-

Answer 2

NH₄⁺, ClO₄^-

Question 3

Based on the solubility rules, which of the following should be soluble in water?

A)Hg₂Cl₂
B)Na₂S
C)Ag₂CO₃
D)Ag₂S
E)BaSO₄

Answer 3

Na₂S

Question 4

Which of the following compounds is a weak electrolyte?

A)HCl
B)NH₃
C)C₆H₁₂O₆ (glucose)
D)N₂
E)KCl

Question 5

Identify the major ionic species present in an aqueous solution of C₁₂H₂₂O₁₁ (sucrose).

A)12 C^-, 22 H⁺, 11 O^-
B)12 C⁺, 22 H⁺, 11 O^2-
C)12 CH²⁺, 11 O^2-
D)C₁₂⁺, 22 H⁺, 11 O^2-
E)no ions are present

Question 6

Which of the following compounds is a strong electrolyte?

A)H₂O
B)CH₃OH
C)CH₃CH₂OH
D)HF
E)NaF

Question 7

Based on the solubility rules, which of the following should be soluble in water?

A)(NH₄)₃PO₄
B)Ca₃(PO₄)₂
C)AlPO₄
D)Ag₃PO₄
E)Mg₃(PO₄)₂

Question 8

Based on the solubility rules, which of the following compounds should be insoluble in water?

A)CaCO₃
B)(NH₄)₂CO₃
C)Na₂CO₃
D)K₂CO₃
E)KNO₃

Question 9

Which of the following compounds is a nonelectrolyte?

A)NaF
B)HNO₃
C)CH₃COOH (acetic acid)
D)NaOH
E)C₆H₁₂O₆ (glucose)

Question 10

Based on the solubility rules, which of the following compounds should be insoluble in water?

A)Na₂SO₄
B)BaSO₄
C)CuSO₄
D)MgSO₄
E)Rb₂SO₄

Question 11

Based on the solubility rules, which of the following should be soluble in water?

A)AgBr
B)AgCl
C)Ag₂CO₃
D)AgNO₃
E)Ag₂S

Question 12

Which of the following compounds is a nonelectrolyte?

A)NaOH
B)HNO₃
C)C₂H₆O (ethanol)
D)KF
E)CH₃COOH (acetic acid)

Question 13

The distinguishing characteristic of all electrolyte solutions is that they

A)contain molecules.
B)conduct electricity.
C)react with other solutions.
D)always contain acids.
E)conduct heat.

Question 14

Which of the following compounds is a weak electrolyte?

A)HNO₃
B)NaNO₃
C)HNO₂
D)NaNO₂
E)NaOH

Question 15

Which of the following compounds is a strong electrolyte?

A)H₂O
B)N₂
C)CH₃COOH (acetic acid)
D)CH₃CH₂OH (ethanol)
E)KOH

Question 16

Identify the major ionic species present in an aqueous solution of K₂SO₄.

A)K²⁺, S⁶⁺, O₄^8-
B)K²⁺, S⁶⁺, 4O^2-
C)2K⁺, S⁶⁺, O₄^8-
D)2K⁺, S⁶⁺, 4O^2-
E)2K⁺, SO₄^2-

Question 17

Which of the following compounds is a weak electrolyte?

A)HCl
B)CH₃COOH (acetic acid)
C)C₆H₁₂O₆ (glucose)
D)O₂
E)NaCl

Question 18

Identify the major ionic species present in an aqueous solution of FeCl₃.

A)Fe⁺, Cl₃^-
B)Fe³⁺, Cl₃^3-
C)Fe³⁺, 3 Cl^-
D)Fe²⁺, 3 Cl^-
E)Fe⁺, 3 Cl^-

Question 19

Identify the major ionic species present in an aqueous solution of Na₂CO₃.

A)Na₂⁺, CO₃^2-
B)Na₂⁺, C^{2 -}, O₃
C)Na⁺, C⁴⁺, O₃^2-
D)Na⁺, C⁺, O^2-
E)Na⁺, CO₃^2-

Question 20

Based on the solubility rules, which one of the following compounds should be insoluble in water?

A)NaCl
B)MgBr₂
C)FeCl₂
D)AgBr
E)ZnCl₂

Question 21

Identify the precipitate(s)formed when solutions of Pb(NO₃)₂(aq), Mg(ClO₄)₂(aq), and (NH₄)₂SO₄(aq)are mixed.

A)PbSO₄
B)MgSO₄
C)NH₄ClO₄
D)NH₄NO₃ and NH₄ClO₄
E)PbSO₄ and MgSO₄

Question 22

Which of the following ions is a weak acid?

A)SO₄^2-
B)H₂SO₄
C)HSO₄^-
D)HNO₃
E)NO₃^-

Question 23

Identify the major ions present in an aqueous LiOH solution.

A)Li²⁺, O^-, H^-
B)Li⁺, OH^-
C)LiO^-, H⁺
D)Li⁺, O^2-, H⁺
E)Li^-, OH⁺

Question 24

Identify the correct net ionic equation for the reaction that occurs when solutions of Ba(ClO₄)₂ and K₂SO₄ are mixed.

A)Ba²⁺(aq)+ SO₄^2-(aq) $\rarr$ BaSO₄(s)
B)2K⁺(aq)+ 2ClO₄^-(aq) $\rarr$ K₂(ClO₄)₂(s)
C)K⁺(aq)+ ClO₄^-(aq) $\rarr$ KClO₄(s)
D)Ba(ClO₄)₂(aq)+ K₂SO₄(aq) $\rarr$ BaSO₄(s)+ 2KClO₄(s)
E)Ba²⁺(aq)+ K⁺(aq)+ SO₄^2-(aq) $\rarr$ KBaSO₄(s)

Question 25

Identify the precipitate(s)formed when solutions of Na₂SO₄(aq), Ba(NO₃)₂(aq), and NH₄ClO₄(aq)are mixed.

A)Ba(ClO₄)₂
B)BaSO₄ and (NH₄)₂SO₄
C)NH₄NO₃ and NaClO₄
D)BaSO₄
E)NaClO₄

Question 26

Identify the major ions present in an aqueous HNO₃ solution.

A)HN⁺, O^2-
B)OH^-, NO₃^-
C)OH^-, NO
D)H⁺, N^3-, O^2-
E)H⁺, NO₃^-

Question 27

Which of the following compounds is a strong acid?

A)HF
B)HI
C)HClO₂
D)H₂SO₃
E)HNO₂

Question 28

Which of the following compounds is a weak acid?

A)HF
B)HCl
C)HBr
D)HI
E)HClO₄

Question 29

Identify the correct net ionic equation for the reaction that occurs when solutions of Pb(NO₃)₂ and NH₄Cl are mixed.

A)Pb(NO₃)₂(aq)+ 2NH₄Cl(aq) $\rarr$ NH₄NO₃(aq)+ PbCl₂(s)
B)Pb²⁺(aq)+ 2Cl^-(aq) $\rarr$ PbCl₂(s)
C)Pb²⁺(aq)+ 2NO₃^- (aq)+ 2NH (aq)+ 2Cl^-(aq) $\rarr$ 2NH (aq)+ 2NO₃^- (aq)+ PbCl₂(s)
D)NH₄⁺(aq)+ NO₃^- (aq) $\rarr$ 2NH₄NO₃(s)
E)No reaction occurs when the solutions are mixed.

Question 30

Which of the following will occur when solutions of ZnSO₄(aq)and MgCl₂(aq)are mixed?

A)A precipitate of ZnCl₂ will form; Mg²⁺ and SO₄^2- will be spectator ions.
B)A precipitate of ZnSO₄ will form ; Mg²⁺ and Cl^- will be spectator ions.
C)A precipitate of MgSO₄ will form ; Zn²⁺ and Cl^- will be spectator ions.
D)A precipitate of MgCl₂ will form ; Zn²⁺ and SO₄^2- will be spectator ions.
E)No precipitate will form.

Question 31

Which of the following will occur when solutions of CuSO₄(aq)and BaCl₂(aq)are mixed?

A)A precipitate of CuCl₂ will form; Ba²⁺ and SO₄^2- are spectator ions.
B)A precipitate of CuSO₄ will form; Ba²⁺ and Cl^- are spectator ions.
C)A precipitate of BaSO₄ will form; Cu²⁺ and Cl^- are spectator ions.
D)A precipitate of BaCl₂ will form; Cu²⁺ and SO₄^2- are spectator ions.
E)No precipitate will form.

Question 32

Based on the solubility rules, which of the following should be soluble in water?

A)CaSO₄
B)BaSO₄
C)PbSO₄
D)K₂SO₄
E)AgCl

Question 33

Which of the following compounds is a weak base?

A)KOH
B)Sc(OH)₃
C)NH₃
D)NH₄⁺
E)CO₂

Question 34

Identify the correct net ionic equation for the reaction that occurs when solutions of AgNO₃ and NH₄Cl are mixed.

A)AgNO₃(aq)+ NH₄Cl(aq) $\rarr$ AgCl(s)+ NH₄Cl(aq)
B)NH₄⁺(aq)+ NO₃^-(aq) $\rarr$ NH₄NO₃(s)
C)AgNO₃(aq)+ NH₄Cl(aq) $\rarr$ AgCl(s)+ NH₄Cl(s)
D)Ag⁺(aq)+ Cl^-(aq) $\rarr$ AgCl(s)
E)AgNO₃(aq)+ NH₄⁺(aq) $\rarr$ NH₄AgNO₃(s)

Question 35

Identify the precipitate(s)formed when solutions of NH₄Cl(aq), AgClO₃(aq), and NaCl(aq)are mixed.

A)AgCl
B)AgCl and NH₄ClO₃
C)NH₄Cl and NaClO₃
D)NH₄ClO₃
E)AgNH₄

Question 36

The common constituent in all acid solutions is

A)H₂
B)H⁺
C)OH^-
D)H₂SO₄
E)Cl^-

Question 37

Identify the major ionic species present in an aqueous solution of H₂SO₄.

A)S⁶⁺, O₃^6- (plus H₂O as a neutral species)
B)H⁺, OH^-, S⁶⁺, 3O^2-
C)2H⁺, S⁶⁺, 4O^2-
D)H⁺, HSO₄^-
E)2H⁺, SO₄^2-

Question 38

Which of the following will occur when a solution of Pb(NO₃)₂(aq)is mixed with a solution of KI(aq)?

A)A precipitate of KNO₃ will form; Pb²⁺ and I^- are spectator ions.
B)No precipitate will form.
C)A precipitate of Pb(NO₃)₂ will form; K⁺ and I^- are spectator ions.
D)A precipitate of PbI₂ will form; K⁺ and NO₃^- are spectator ions.
E)A precipitate of PbI₂ will form; Pb²⁺ and I^- are spectator ions.

Question 39

Identify the correct net ionic equation for the reaction that occurs when solutions of Na₃PO₄ and Ca(NO₃)₂ are mixed

A)Ca²⁺ + PO₄^2-(aq) $\rarr$ CaPO₄(s)
B)3Ca²⁺(aq)+ 2PO₄^3-(aq) $\rarr$ Ca₃(PO₄)₂(s)
C)Na⁺(aq)+ NO₃^- $\rarr$ NaNO₃(s)
D)Na⁺(aq)+ Ca²⁺(aq)+ PO₄^3-(aq) $\rarr$ NaCaPO₄(s)
E)2 Na₃PO₄(aq)+ 3Ca(NO₃)₂(aq) $\rarr$ 6NaNO₃(s)+ Ca₃(PO₄)₂(s)

Question 40

Identify the precipitate(s)formed when solutions of Ca(ClO₄)₂(aq), K₂CO₃(aq), and NaNO₃(aq)are mixed.

A)CaCO₃
B)Na₂CO₃
C)Ca(NO₃)₂ and NaClO₄
D)CaCO₃ and Na₂CO₃
E)KClO₄ and Ca(NO₃)₂

Question 41

The oxidation number of N in N₂H₄ is

A)+4
B)-4
C)+2
D)-2
E)0

Question 42

For which one of the following acids is chlorine in the +5 oxidation state?

A)HCl
B)HClO
C)HClO₂
D)HClO₃
E)HClO₄

Question 43

The oxidation number of Fe in K₃Fe(CN)₆ is

A)+3
B)+2
C)+1
D)-3
E)-4

Question 44

Identify the correct net ionic equation for the reaction that occurs when solutions of HClO₄ and Ba(OH)₂ are mixed.

A)H⁺(aq)+ 2OH^-(aq) $\rarr$ H₂O(l)
B)H⁺(aq)+ OH^-(aq) $\rarr$ H₂O(l)
C)2HClO₄(aq)+ Ba(OH)₂(s) $\rarr$ 2H₂O(l)+ Ba(ClO₄)₂(aq)
D)2HClO₄(aq)+ Ba(OH)₂(s) $\rarr$ 2H₂O(l)+ Ba(ClO₄)₂(s)
E)2H⁺(aq)+ Ba(OH)₂(s) $\rarr$ 2H₂O(l)+ Ba²⁺(aq)

Question 45

For the perchlorate ion ClO₄^- , what are the oxidation states of the Cl and O, respectively?

A)- 1, - 2
B)+8, - 2
C)+7, - 2
D)+6, - 2
E)+2, - 1

Question 46

The oxidation number of N in NaNO₃ is

A)+6
B)+5
C)+3
D)-3
E)None of the above.

Question 47

The oxidation number of S in K₂SO₄ is

A)+6
B)+4
C)+2
D)-1
E)None of the above.

Question 48

The oxidation number of Mn in KMnO₄ is

A)+8
B)+7
C)+5
D)-7
E)-8

Question 49

Identify the correct net ionic equation for the reaction that occurs when solutions of HF and KOH are mixed.

A)H⁺(aq)+ OH^-(aq) $\rarr$ H₂O(l)
B)HF(aq)+ OH^-(aq) $\rarr$ H₂O(l)+ F^-(aq)
C)H⁺(aq)+ KOH(aq) $\rarr$ H₂O(l)+ K⁺(aq)
D)HF(aq)+ KOH(aq) $\rarr$ H₂O(l)+ KF(s)
E)HF(aq)+ KOH(s) $\rarr$ H₂O(l)+ KF(aq)

Question 50

Select the compound in which sulfur has its highest possible oxidation number.

A)H₂S
B)SO₂
C)SCl₂
D)H₂SO₃
E)Na₂SO₄

Question 51

For the chlorate ion, ClO₃^- , what are the oxidation states of the Cl and O, respectively?

A)- 1, - 2
B)+5, - 2
C)+6, - 2
D)+7, - 2
E)+2, - 1

Question 52

The highest possible oxidation number of nitrogen is

A)+8
B)+5
C)+3
D)+1
E)-3

Question 53

Determine the correct oxidation numbers for all three elements in Ca(ClO)₂ in the order that the elements are shown in the formula?

A)+2, +1, -2
B)+2, -2, +1
C)+2, -3, +2
D)-2, +2, -1
E)-2, +3, -2

Question 54

Using the redox reaction below determine which element is oxidized and which is reduced. 4NH₃ + 3Ca(ClO)₂ $\rarr$ 2N₂ + 6H₂O + 3CaCl₂

A)H is oxidized and N is reduced
B)N is oxidized and Cl is reduced
C)N is oxidized and O is reduced
D)Cl is oxidized and O is reduced
E)Cl is oxidized and N is reduced

Question 55

The highest possible oxidation number of carbon is

A)+8
B)+6
C)+4
D)+2
E)-4

Question 56

How many total electrons are transferred in the following reaction?
4 P(s)+ 5O₂(g) $\rarr$ 2P₂O₅(s)

A)5
B)10
C)15
D)20
E)25

Question 57

Determine the correct oxidation numbers for all three elements in Rb₂SO₃ in the order that the elements are shown in the formula.

A)-2, +6, -2
B)-1, +4, -3
C)+2, +4, -2
D)+1, +4, -2
E)+1, +6, -6

Question 58

The oxidation number of Cr in Cr₂O₇^2- is

A)-12
B)-7
C)-2
D)+6
E)+7

Question 59

Identify the correct net ionic equation for the reaction that occurs when solutions of HNO₃ and KOH are mixed?

A)HNO₃(aq)+ KOH(aq) $\rarr$ H₂O(l)+ KNO₃(aq)
B)K⁺(aq)+ NO₃^-(aq) $\rarr$ KNO₃(aq)
C)HNO₃(aq)+ KOH(aq) $\rarr$ H₂O(l)+ KNO₃(s)
D)H⁺(aq)+ OH^-(aq) $\rarr$ H₂O(l)
E)HNO₃(aq)+ OH^-(aq) $\rarr$ H₂O(l)+ NO₃^-(aq)

Question 60

How many total electrons are transferred in the following reaction?
B₂H₆(g)+ 3O₂(g) $\rarr$ ?₂?₃(s)+ 3H₂O(l)

A)2
B)3
C)4
D)6
E)12

Question 61

Identify the oxidizing agent in the following chemical reaction.
2MnO₄^- + 5H₂SO₃ $\rarr$ 2Mn²⁺ + 5SO₄^2- + 4H⁺ + 3H₂O

A)MnO₄^-
B)H₂SO₃
C)Mn²⁺
D)SO₄^2-
E)H⁺

Question 62

Predict the products of the following single replacement reaction.
Fe(s)+ CuSO₄(aq) $\rarr$

A)Cu(s)+ FeSO₄(aq)
B)Fe(s)+ Cu(s)+ SO₄(aq)
C)CuS(s)+ Fe₂SO₄(aq)
D)FeCuSO₄(aq)
E)FeO(s)+ CuSO₃(aq)

Question 63

In the following chemical reaction the oxidizing agent is
5S + 6KNO₃ + 2CaCO₃ $\rarr$ 3K₂SO₄ + 2CaSO₄ + CO₂ + 3N₂

A)S
B)N₂
C)KNO₃
D)CaSO₄
E)CaCO₃

Question 64

What element is oxidized in the following chemical reaction?
NiO₂ + Cd + 2H₂O $\rarr$ Ni(OH)₂ + Cd(OH)₂

A)Ni
B)Cd
C)O
D)H
E)This is not a redox reaction.

Question 65

Predict the products of the following single replacement reaction.
Zn(s)+ CoCl₂(aq) $\rarr$

A)No reaction occurs
B)Co(s)+ ZnCl₂(aq)
C)CoCl(aq)+ ZnCl(aq)
D)ZnCo(aq)+ Cl₂(g)
E)ZnCoCl₂(aq)

Question 66

Which of the following is NOT a redox reaction?

A)2KBr(aq)+ Cl₂(g) $\rarr$ 2KCl(aq)+ Br₂(l)
B)2Na(s)+ 2H₂O(l) $\rarr$ 2NaOH(aq)+ H₂(g)
C)V₂O₅(s)+ 5 Ca(l) $\rarr$ 2 V(l)+ 5 CaO(s)
D)2KNO₃(s) $\rarr$ 2KNO₂(s)+ O₂(g)
E)2LiOH(aq)+ H₂SO₄(aq) $\rarr$ Li₂SO₄(aq)+ 2H₂O(l)

Question 67

Which one of the following is a redox reaction?

A)2Al(s)+ 3H₂SO₄(aq) $\rarr$ Al₂(SO₄)₃(aq)+ 3H₂(g)
B)2KBr(aq)+ Pb(NO₃)₂(aq) $\rarr$ 2KNO₃(aq)+ PbBr₂(s)
C)CaBr₂(aq)+ H₂SO₄(aq) $\rarr$ CaSO₄(s)+ 2HBr(g)
D)H⁺(aq)+ OH^- (aq) $\rarr$ H₂O(l)
E)CO₃^2- (aq)+ HSO₄^-(aq) $\rarr$ HCO₃^- (aq)+ SO₄^2- (aq)

Question 68

In the following chemical reaction the oxidizing agent is
5H₂O₂ + 2MnO₄^- + 6H⁺ $\rarr$ 2Mn²⁺ + 8H₂O + 5O₂

A)H₂O₂
B)MnO₄^-
C)H⁺
D)Mn²⁺
E)O₂

Question 69

Which of the following is an example of a disproportionation reaction?

A)2C₂H₆(g)+ 7O₂(g) $\rarr$ 4CO₂(g)+ 6H₂O(l)
B)2KBr(aq)+ Cl₂(g) $\rarr$ 2KCl(aq)+ Br₂(l)
C)2H₂O₂(aq) $\rarr$ 2H₂O(l)+ O₂(g)
D)CaBr₂(aq)+ H₂SO₄(aq) $\rarr$ CaSO₄(s)+ 2HBr(g)
E)2Al(s)+ 3H₂SO₄(aq) $\rarr$ Al₂(SO₄)₃(aq)+ 3H₂(g)

Question 70

Which of the following equations does not represent an oxidation-reduction reaction?

A)3Al + 6HCl $\rarr$ 0 3H₂ + AlCl₃
B)2H₂O $\rarr$ 2H₂ + O₂
C)2NaCl + Pb(NO₃)₂ $\rarr$ PbCl₂ + 3NaNO₃
D)2NaI + Br₂ $\rarr$ 2NaBr + I₂
E)Cu(NO₃)₂ + Zn $\rarr$ Zn(NO₃)₂ + Cu

Question 71

What element is oxidized in the following chemical reaction?
3Cu + 8HNO₃ $\rarr$ 3Cu(NO₃)₂ + 2NO + 4H₂O

A)Cu
B)H
C)N
D)O
E)H₂O

Question 72

Identify the reducing agent in the following chemical reaction.
Cd + NiO₂ + 2H₂O $\rarr$ Cd(OH)₂ + Ni(OH)₂

A)Cd
B)NiO₂
C)H₂O
D)Cd(OH)₂
E)Ni(OH)₂

Question 73

Identify the reducing agent in the following chemical reaction.
5Fe²⁺(aq)+ MnO₄^-(aq) + 8H⁺(aq) $\rarr$ 5Fe³⁺(aq)+ Mn²⁺(aq)+ 4H₂O(l)

A)Fe²⁺
B)MnO₄^-
C)H⁺
D)Mn²⁺
E)Fe³⁺

Question 74

Which of the following is NOT a redox reaction?

A)2NaN₃(s) $\rarr$ 2Na(s)+ 3N₂(g)
B)Fe₂O₃(s)+ 2Al(s) $\rarr$ 2Fe(s)+ Al₂O₃(s)
C)3NO₂(g)+ H₂O(l) $\rarr$ 2HNO₃(aq)+ NO(g)
D)NH₄Cl(aq)+ AgNO₃ $\rarr$ NH₄NO₃(aq)+ AgCl(s)
E)2ZnS(s)+ 3O₂(g) $\rarr$ 2ZnO(s)+ 2SO₂(g)

Question 75

Which of the following represents a precipitation reaction?

A)2H₂(g)+ O₂(g) $\rarr$ 2H₂O(l)
B)CaBr₂(aq)+ H₂SO₄(aq) $\rarr$ CaSO₄(s)+ 2HBr(g)
C)2KNO₃(s) $\rarr$ 2KNO₂(s)+ O₂(g)
D)2KBr(aq)+ Cl₂(g) $\rarr$ 2KCl(aq)+ Br₂(l)
E)2Al(s)+ 3H₂SO₄(aq) $\rarr$ Al₂(SO₄)₃(aq)+ 3H₂(g)

Question 76

What element is oxidized in the following chemical reaction?
H₂SO₄ + Cd(OH)₂ $\rarr$ 2H₂O + CdSO₄

A)H
B)S
C)O
D)Cd
E)this is not a redox reaction

Question 77

What element is reduced in the following chemical reaction?
Cu + 2H₂SO₄ $\rarr$ CuSO₄ + SO₂ + 2H₂O

A)Cu
B)H
C)S
D)O
E)H₂O

Question 78

How many total electrons are transferred in the following reaction?
2Na(s)+ Cl₂(g) $\rarr$ 2NaCl(s)

A)1
B)2
C)3
D)4
E)5

Question 79

Identify the elements that are oxidized and reduced in the following reaction. KClO₃(aq)+ 6HBr(aq) $\rarr$ KCl(aq)+ 3Br₂(l)+ 3H₂O(l)

A)Br is oxidized and Cl is reduced
B)Cl is oxidized and H is reduced
C)H is oxidized and O is reduced
D)O is oxidized and Cl is reduced
E)Cl is oxidized and Br is reduced

Question 80

Predict the products of the following single replacement reaction.
Ni(s)+ Cu(NO₃)₂(aq) $\rarr$

A)No reaction occurs
B)NiNO₃(aq)+ CuNO₃(aq)
C)NiCu(aq)2 NO₃^-(aq)
D)Ni(NO₃)₂(aq)+ Cu(s)
E)Ni(NO₃)₂(aq)+ Cu²⁺(aq)