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【判断题】
党的十八大进一步明确了决胜全面建成小康社会的战略安排。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】已知298.15 K时，φy (I2/I－)=0.535 V，φy (Fe3+/Fe2+) = 0.771 V，则反应2Fe3+ + 2I－=2Fe2+ + I2 的标准平衡常数为 （ ）
A.
9.4×10 7
B.
9.4×10 － 7
C.
9.4×10 10
D.
9.4×10 5
【单选题】已知下列反应在标准状态下,皆正向自发进行: 则有关 φ y 的大小顺序正确的是( )
A.
Fe 3+ /Fe 2+ ＞ I 2 /I - ＞ Br 2 /Br -
B.
I 2 /I - ＞ Fe 3+ /Fe 2+ ＞ Br 2 /Br -
C.
Br 2 /Br - ＞ I 2 /I - ＞ Fe 3+ /Fe 2+
D.
Br 2 /Br - ＞ Fe 3+ /Fe 2+ ＞ I 2 /I -
【简答题】已知 φ y ( Fe3+/ Fe2+ )=0.771V , φ y (Cu2+ / Cu)=0.24V ,计算当 c(Fe2+)= c(Cu2+) = 1.0 mol·L-1 , Fe3+ 的浓度至少大于多少时下列反应才能进行:
【单选题】听力原文：M: Since it's the rush hour, let's take the subway. W: OK. It's not as direct as the bus, but it's faster, and there will be less chance of a traffic jam. Q: Why did the man and woman decide to t...
A.
It's more direct.
B.
There's a traffic jam.
C.
It' s faster.
D.
It' s cheaper.
【简答题】计算并将相关结果数据填入相应空格,pH=2.0,[Y 4- ]=0.10 mol/L的溶液中Fe 3+ /Fe 2+ 电对的条件电位____V并判断此时Fe 3+ ____[填:能、不能]氧化I - 。 已知:[pH=2,lg α[(H] =13.51, φ θ Fe3+/Fe2+ =0.77V, φ θ I2/I- =0.545V, lgK [FeY-] =25.1, lgK [FeY-] =1...
【单选题】'Let's go to the museum this afternoon. There's a wonderful exhibition.' 'OK.___________ we meet at the bus stop?'
A.
Will
B.
Shall
C.
Can
D.
Should
【单选题】已知 : Fe 3 + + e - == = Fe 2 + φ y = 0.77 V Cu 2 + + 2e - = == Cu j φ y = 0.34 V Fe 2 + + 2e - == = Fe φ y = - 0.44 V Al 3 + + 3e - == = Al j φ y = - 1.66 V 则最强的还原剂是 ( )
A.
Al 3 +
B.
Fe 2 +
C.
Fe
D.
Al
【单选题】听力原文：M: It's a fine day today, isn't it? W: Yes. Let's go to the park, OK? M: That's great! Q: Where do they plan to go? (17)
A.
Park.
B.
Market.
C.
School.
【单选题】听力原文：W: Since it's the rush hour, let's take the subway. M: Ok. It's not as direct as tile bus, but it's faster and there will be less chance of a traffic: jam. Q: Why do the man and woman decide to t...
A.
It's more direct.
B.
It's faster.
C.
It's less crowded.
D.
It's less expensive.
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