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Sample Regents Question
50 Given the diagram representing a reaction:
According to one acid-base theory, the water acts as
(1) a base because it accepts an H􏰀 (3) an acid because it accepts an H􏰀
(2) a base because it donates an H􏰀 (4) an acid because it donates an H􏰀
Jan 2013 #50
Answer
Choice #1
Explanation: H2O is the base and accepts H because it has fewer H’s than H3O. H3O is the acid and donates H because it has more H’s.
P.S./Chem.–Jan. ’13 [8]
–
Cl +
+ + Cl H
OHO HHH
H
UNIT 9: ACIDS AND BASES © 340