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【简答题】
对于由电对MnO4-／Mn2+与Zn2+／Zn组成的原电池， (1)计算298K下，当C(MnO4-)=C(Mn2+)=c(Zn2+)=1．0molL-1，c(H+)=0．1molL-1时，该电池的电动势?该氧化还原反应的△rGΘm ，并说明该氧化还原反应进行的方向。 (2)计算该氧化还原反应在298K时的lgKΘ。 (3)当温度升高时，该反应的KΘ是增大还是减少?为什么?
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A.
Y
B.
N
C.
NG
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【单选题】Both amateur and _____ singers were invited to the Lunar New Year's Eve Gala.
A.
professor
B.
profession
C.
preferred
D.
professional
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A.
正确
B.
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A.
that you have learned
B.
how what you have learned
C.
that how you have learned
D.
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