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【单选题】
Listen to the news again and choose the correct answer What's the warning given by the head of IMF?A.
The EU should keep to its austerity measures
B.
The future of the global economy might be jeopardized
C.
The austerity programs will endanger EU's economy
D.
The recovery plan of EU should be carried out immediately
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【单选题】The pH at the equivalence point for titration of 0.10 M HCl versus 0.10 M NH 3 is
A.
5.28
B.
6.28
C.
7.28
D.
8.28
【简答题】在0.10 mol·dm -3 NH 3 ·H 2 O溶液中加入NH 4 Cl固体，则NH 3 ·H 2 O的浓度______，解离度______，pH将______，解离常数______。
【单选题】Unless we leave now there ’ s no ------- we ’ ll arrive on time.
A.
way
B.
road
C.
aa
D.
bb
【简答题】求0.10m01/L [Ag(NH 3 ) 2 ] + 溶液中含有0.10m01/L氨水时的Ag + 离子浓度。若在此体系中加入KCN固体(忽略体积变化)，反应[Ag(NH 3 ) 2 ] + +2CN====[Ag(CN) 2 ] - +2NH 3 能否发生?
【单选题】Unless we leave now there’s no ____________ we’ll arrive on time.
A.
way
B.
road
C.
path
D.
street
相关题目：
【简答题】在0.10 mol·dm -3 NH 3 ·H 2 O溶液中加入NH 4 Cl固体，则NH 3 ·H 2 O的浓度______，解离度______，pH将______，解离常数______。