Which of the following represents a double-displacement reaction? A. 2 H2(g) + O2(g) ® 2 H2O(l) B. CaBr2(aq) + H2SO4(aq) ® CaSO4(s) + 2 HBr(g) C. 2 KNO3(s) ® 2 KNO2(s) + O2(g) D. 2 KBr(aq) + Cl2(g) ® 2 KCl(aq) + Br2(l) E. 2 Al(s) + 3H2SO4(aq) ® Al2(SO4)3(aq) + 3 H2(g)
Which of the following represents a double-displacement reaction? A. 2 H2(g) + O2(g) ® 2 H2O(l) B. CaBr2(aq) + H2SO4(aq) ® CaSO4(s) + 2 HBr(g) C. 2 KNO3(s) ® 2 KNO2(s) + O2(g) D. 2 KBr(aq) + Cl2(g) ® 2 KCl(aq) + Br2(l) E. 2 Al(s) + 3H2SO4(aq) ® Al2(SO4)3(aq) + 3 H2(g)
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter7: Reactions In Aqueous Solutions
Section: Chapter Questions
Problem 51QAP
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Which of the following represents a double-displacement reaction?
A. 2 H2(g) + O2(g) ® 2 H2O(l)
B. CaBr2(aq) + H2SO4(aq) ® CaSO4(s) + 2 HBr(g)
C. 2 KNO3(s) ® 2 KNO2(s) + O2(g)
D. 2 KBr(aq) + Cl2(g) ® 2 KCl(aq) + Br2(l)
E. 2 Al(s) + 3H2SO4(aq) ® Al2(SO4)3(aq) + 3 H2(g)
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