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Chapter 4: (Reactions in Aqueous Solutions) Review Questions: Attempt review
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Chapter 4: (Reactions in Aqueous Solutions) Review Questions
Started on Saturday, 19 March 2022, 6:57 PM
State Finished
Completed on Saturday, 19 March 2022, 7:05 PM
Time taken 8 mins 56 secs
Marks 13.0/15.0
Grade 17.3 out of 20.0 (87%)
Question 1
Complete
Mark 1.0 out of 1.0
By analogy with the oxoacids of sulfur, H2TeO3 would be named
a. pertelluric acid.
b. telluric acid.
c. tellurous acid.
d. hydrotellurous acid.
The correct answer is: tellurous acid.
Question 2
Complete
Mark 0.0 out of 1.0
What are the coefficients in front of Fe(s) and O3(g) when the following equation is balanced in a basic solution?
_____ Fe(s) + _____ O3(g) → _____ Fe2O3(s) + _____ O2(g)
a. 2, 2
b. 2, 3
c. 3, 4
d. 3, 2
The correct answer is: 2, 3
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Chapter 4: (Reactions in Aqueous Solutions) Review Questions: Attempt review
Question 3
Complete
Mark 1.0 out of 1.0
What is the oxidation half reaction in the following chemical reaction?
Cr2O72-(aq) + 6 Cl-(aq) + 14 H+(aq) → 2 Cr3+(aq) + 3 Cl2(aq) + 7 H2O(l)
a. Cr2O72-(aq) + 14 H+(aq) → 2 Cr3+(aq) + 7 H2O(l) + 6eb. 2 Cl-(aq) → Cl2(aq) + 2ec. Cl2(aq) + 2e- → 2 Cl-(aq)
d. Cr2O72-(aq) + 14 H+(aq) + 6e- → 2 Cr3+(aq) + 7 H2O(l)
The correct answer is: 2 Cl-(aq) → Cl2(aq) + 2e-
Question 4
Complete
Mark 1.0 out of 1.0
Write a net ionic equation for the neutralization reaction of HCN(aq) with NaOH(aq).
a. HCN(aq) + NaOH(aq) → NaCN(aq) + H2O(l)
b. HCN(aq) + OH-(aq) → CN-(aq) + H2O(l)
c. H+(aq) + OH-(aq) → H2O(l)
d. HCN(aq) + Na+(aq) + OH-(aq) → Na+(aq) + CN-(aq) + H2O(l)
The correct answer is: HCN(aq) + OH-(aq) → CN-(aq) + H2O(l)
Question 5
Complete
Mark 1.0 out of 1.0
Predict the products of a reaction between AgNO3(aq) and KBr(aq).
a. AgNO3(aq) and KBr(aq)
b. AgBr(s) and KNO3(aq)
c. Ag(s) and Br2(l)
d. Ag(s) and NO(g)
The correct answer is: AgBr(s) and KNO3(aq)
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Chapter 4: (Reactions in Aqueous Solutions) Review Questions: Attempt review
Question 6
Complete
Mark 0.0 out of 1.0
What is true when the following equation is balanced in basic solution?
P(s) + PO43-(aq) → HPO32-(aq)
a. OH- appears on the left side of the equation.
b. H+ appears on the right side of the equation.
c. H+ appears on the left side of the equation.
d. OH- appears on the right side of the equation.
The correct answer is: OH- appears on the left side of the equation.
Question 7
Complete
Mark 1.0 out of 1.0
What is the oxidation number change for the manganese atom in the following unbalanced reduction half
reaction?
MnO4-(aq) + H+(aq) → Mn2+(aq) + H2O(l)
a. -7
b. -5
c. +7
d. +5
The correct answer is: -5
Question 8
Complete
Mark 1.0 out of 1.0
Which species functions as the oxidizing agent in the following reduction-oxidation reaction?
Zn(s) + Cu2+(aq) → Cu(s) + Zn2+(aq)
a. Cu(s)
b. Zn2+(aq)
c. Zn(s)
d. Cu2+(aq)
The correct answer is: Cu2+(aq)
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Chapter 4: (Reactions in Aqueous Solutions) Review Questions: Attempt review
Question 9
Complete
Mark 1.0 out of 1.0
Which one of the following compounds is insoluble in water?
a. NaNO3
b. K2SO4
c. PbSO4
d. Rb2CO3
The correct answer is: PbSO4
Question 10
Complete
Mark 1.0 out of 1.0
What is the oxidation number of the sulfur atom in H2SO4?
a. -2
b. +2
c. +4
d. +6
The correct answer is: +6
Question 11
Complete
Mark 1.0 out of 1.0
Based on the balanced chemical equation shown below, determine the molarity of a solution containing Fe2+(aq), if
40.00 mL of the Fe2+(aq) solution is required to completely react with 30.00 mL of a 0. 250 M potassium bromate,
KBrO3(aq), solution. The chemical equation for the reaction is:
6 Fe2+(aq) + BrO3-(aq) + 6 H+(aq) → 6 Fe3+(aq) + Br-(aq) + 3 H2O(l).
a. 1.12 M
b. 0. 0312 M
c. 2.00 M
d. 0. 188 M
The correct answer is: 1.12 M
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Chapter 4: (Reactions in Aqueous Solutions) Review Questions: Attempt review
Question 12
Complete
Mark 1.0 out of 1.0
Write a net ionic equation for the neutralization reaction of CH3CO2H(aq) with CsOH(aq).
a. CH3CO2H(aq) + OH-(aq) → CH3CO2-(aq) + H2O(l)
b. CH3CO2-(aq) + H+(aq) + Cs+(aq) + OH-(aq) → CH3CO2-(aq) + Cs+ + H2O(l)
c. CH3CO2H(aq) + CsOH(aq) → CH3CO2Cs(aq) + H2O(l)
d. CH3CO2H(aq) + Cs+(aq) + OH-(aq) → CH3CO2Cs(s) + H2O(l)
The correct answer is: CH3CO2H(aq) + OH-(aq) → CH3CO2-(aq) + H2O(l)
Question 13
Complete
Mark 1.0 out of 1.0
The mixing of which pair of reactants will result in a precipitation reaction?
a. HCl(aq) + Ca(OH)2(aq)
b. NaNO3(aq) + NH4Cl(aq)
c. CsI(aq) + NaOH(aq)
d. K2SO4(aq) + Ba(NO3)2(aq)
The correct answer is: K2SO4(aq) + Ba(NO3)2(aq)
Question 14
Complete
Mark 1.0 out of 1.0
The reaction
Na3PO4(aq) + 3 AgNO3(aq) → Ag3PO4(s) + 3 NaNO3(aq)
is best classified as a(n)
a. single replacement reaction.
b. acid-base neutralization reaction.
c. precipitation reaction.
d. oxidation-reduction reaction.
The correct answer is: precipitation reaction.
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Chapter 4: (Reactions in Aqueous Solutions) Review Questions: Attempt review
Question 15
Complete
Mark 1.0 out of 1.0
What reagent could not be used to separate Cl- from OH- when added to an aqueous solution containing both?
a. AgNO3(aq)
b. Cu(NO3)2(aq)
c. Fe(NO3)3(aq)
d. Ca(NO3)2(aq)
The correct answer is: AgNO3(aq)
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