Question

41. When solutions of potassium chloride and sodium chloride are mixed a. nothing happens b. water forms c. a gas forms d. a gas and water forms e. a precipitate forms 42. Which of these chemical equations describes a halogen displacement reaction? a. 2KBr(aq) + Cl2(g) --> 2KCl(aq) + Br2(l) b. 2Na(s) + 2H2O(l) --> 2NaOH(aq) + H2(g) c. CaBr2(aq) + H2SO4(aq) --> CaSO4(s) + 2HBr(g) d. 2KNO3(s) --> 2KNO2(s) + O2(g) e. 2LiOH(aq) + H2SO4(aq) --> Li2SO4(aq) + 2H2O(l)

          41. When solutions of potassium chloride and sodium chloride are mixed
a. nothing happens
b. water forms
c. a gas forms
d. a gas and water forms
e. a precipitate forms

42. Which of these chemical equations describes a halogen displacement reaction?
a. 2KBr(aq) + Cl2(g) --> 2KCl(aq) + Br2(l)
b. 2Na(s) + 2H2O(l) --> 2NaOH(aq) + H2(g)
c. CaBr2(aq) + H2SO4(aq) --> CaSO4(s) + 2HBr(g)
d. 2KNO3(s) --> 2KNO2(s) + O2(g)
e. 2LiOH(aq) + H2SO4(aq) --> Li2SO4(aq) + 2H2O(l)

41. When solutions of potassium chloride and sodium chloride are mixed
a. nothing happens
b. water forms
c. a gas forms
d. a gas and water forms
e. a precipitate forms

42. Which of these chemical equations describes a halogen displacement reaction?
a. 2KBr(aq) + Cl2(g) –> 2KCl(aq) + Br2(l)
b. 2Na(s) + 2H2O(l) –> 2NaOH(aq) + H2(g)
c. CaBr2(aq) + H2SO4(aq) –> CaSO4(s) + 2HBr(g)
d. 2KNO3(s) –> 2KNO2(s) + O2(g)
e. 2LiOH(aq) + H2SO4(aq) –> Li2SO4(aq) + 2H2O(l)

Added by Ricardo H.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Sri K

10/01/2023

Step 1

A halogen displacement reaction occurs when a more reactive halogen displaces a less reactive halogen from its compound. In the given options, the only reaction that fits this description is: 2KBr(aq) + Cl2(g) → 2KCl(aq) + Br2(l) Show more…

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41. When solutions of potassium chloride and sodium chloride are mixed a. nothing happens b. water forms c. a gas forms d. a gas and water forms e. a precipitate forms 42. Which of these chemical equations describes a halogen displacement reaction? a. 2KBr(aq) + Cl2(g) --> 2KCl(aq) + Br2(l) b. 2Na(s) + 2H2O(l) --> 2NaOH(aq) + H2(g) c. CaBr2(aq) + H2SO4(aq) --> CaSO4(s) + 2HBr(g) d. 2KNO3(s) --> 2KNO2(s) + O2(g) e. 2LiOH(aq) + H2SO4(aq) --> Li2SO4(aq) + 2H2O(l)