【判断题】John Milton's Paradise Lost is written in blank verse.
【单选题】Paradise Regained Was written in blank verse.
【多选题】下列离子反应不能发生的是:
B.
AgNO3+NaCl====NaNO3+AgCl↓
C.
Na2CO3+Ca(OH)2====CaCO3↓+2NaOH
D.
2NaCl+Ca(NO3)2====CaCl2+2NaNO3
【判断题】凡是具有4n+2个π电子的共轭体系均具有芳香性。
【单选题】下列离子反应不能发生的是 ( )
B.
AgNO 3 +NaCl = AgCl↓+NaNO 3
C.
Na 2 CO 3 +Ca(OH) 2 = CaCO 3 ↓+2NaOH
D.
CaCO 3 +H 2 O+CO 2 = Ca(HCO 3 ) 2
【判断题】John Milton's Paradise Lost is writen in blank verse.
【单选题】依你现有知识分析判断,下列各离子反应不能发生的是 [ ]
B.
AgNO 3 +HCl=AgCl↓ +HNO 3
C.
Na 2 CO 3 +Ca(OH) 2 =2NaOH+CaCO 3 ↓
D.
BaCO 3 +2HNO 3 =Ba(NO 3 ) 2 +H 2 O+CO 2 ↑