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26 Which compounds are electrolytes? 29 Which nuclear e
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(1) C2H5OH and H2SO4
(2) C2H5OH and CH4
(3) KOH and H2SO4
(4) KOH anSdamCpHle Regents Question 4
penetrating pow
(1) proton
(2) beta particle
30 Thedatingofgeo of a beneficial us
(1) isomers
(2) electrolytes (3) organic comp (4) radioactive n
27 Which compounds yield hydrogen ions as the only positive ions in an aqueous solution?
(1) H2CO3 and HC2H3O2 (2) H2CO3 and NaHCO3 (3) NH3 and HC2H3O2 (4) NH3 and NaHCO3
JAN 2013 #27
Answer
Choice #1
Explanation: Acids yield hydrogen ions as the only positive ions in a solution. Reffy, Table K (p. 6) shows that both compounds in choice 1 are acids.
337 © UNIT 9: ACIDS AND BASES