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nting a closed system
28 Which substance yields H􏰀(aq) as the only positive ion in an aqueous solution?
H2O(g) H2O( )
k
bes this sys
equals the mass of
equals the vo
of H2O(l) eq O(g).
n of H2O(l n of H2O(g).
(1) charge (2) energy
(3) isomers (4) volume
tem at
into
June 2012 #29
(1) CH3CHO (3) CH3COOH
(2) CH CHSaOmHple Regen(t4s) QCuHestOioCnHs 3233
29 Compared to the mass and the penetrating power of an alpha particle, a beta particle has
(1) less mass and greater penetrating power (2) less mass and less penetrating power
(3) more mass and greater penetrating power (4) more mass and less penetrating power
30 During a nuclear reaction, mass is converted
lume of Answer uals the
Answer: Choice #1
) equals
Explanation:
Reffy, Table O (p. 7) shows that a beta particle has less mass (0) than an
alpha particle (4). We also know that the beta particle has more penetrating power than the alpha particle.
2
o o
UNIT 12: NUCLEAR CHEMISTRY © 482