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(3) There is no cha a
q n
3 6
1 R
e 9
24 An oxidation-reduction reaction involves the
(1) sharing of electrons
(2) sharing of protons
(4) A l
(3) transfer of electrons
29 Which reactio
(1) 235 92
(2) 21H
(3) 14N 7
(4) 226 88
30 Which
(1) Fe- (2) Sr-
Sample Regents Questions
(4) transfer of protons
26 Which compound is an electrolyte?
Jan 2011 #25
(1) butene (3) dimethyl ether (2) propane (4) methanoic acid
Choice #1
25 Which energy change occurs in an operating voltaic cell?
(1) chemical to electrical (2) electrical to chemical (3) chemical to nuclear (4) nuclear to chemical
with an acid to produce
Explanation: A voltaic cell changes chemical energy to electrical energy.
(4) water and a salt
Answer
27 According to the Arrhenius theory, a base reacts
(1) ammonia and methane
(2) ammonia and a salt
(3) water and methane
rge amount
balanced e ?
+ 1n → 9 03
+ 31 H → 42 H
+ 42 H e →
a → 222Rn 86
radioisotop
53 0
U
UNIT 10: OXIDATION & REDUCTION © 388
