College Chemistry Ii Phs 1035 Practice Exam 3 With Answer Key
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39College Chemistry II PHS 1035 Practice Exam 3
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) According to the Arrhenius concept, an acid is a substance that ________.
1)
A) is capable of donating one or more H +
B) causes an increase in the concentration of H + in aqueous solutions
C) can accept a pair of electrons to form a coordinate covalent bond
D) reacts with the solvent to form the cation formed by autoionization of that solvent
E) tastes bitter
2) A Br nsted-Lowry base is defined as a substance that ________.
2)
A) increases [H + ] when placed in H 2 O
B) decreases [H + ] when placed in H 2 O
C) increases [OH - ] when placed in H 2 O
D) acts as a proton acceptor
E) acts as a proton donor
3) A Br nsted-Lowry acid is defined as a substance that ________.
3)
A) increases K a when placed in H 2 O
B) decreases [H + ] when placed in H 2 O
C) increases [OH - ] when placed in H 2 O
D) acts as a proton acceptor
E) acts as a proton donor
4) Which one of the following is a Br nsted-Lowry acid?
4)
A) (CH 3 ) 3 NH +
B) CH 3 COOH
C) HF
D) HNO 2
E) all of the above
5) A substance that is capable of acting as both an acid and as a base is ________.
5)
A) autosomal
B) conjugated
C) ambiprotic
D) saturated
E) miscible
6) Which one of the following is a Br nsted-Lowry base?
6)
A) (CH 3 ) 3 N
B) CH 3 COOH
C) HF
D) HNO 2
E) none of the above
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