Irish nationalism climaxed in().in which an Irish Republic was proclaimed.
A、the massacre of Drogheda
B、the Easter Uprising of 1916
C、the battle of the Borne(1690)
D、the Chartist Movement
A、the massacre of Drogheda
B、the Easter Uprising of 1916
C、the battle of the Borne(1690)
D、the Chartist Movement
A、在二硫化碳溶液中,以碘为催化剂,氯苯与氯发生如下平行反应: B、C6H5Cl+Cl2→HCl+邻-C6H4Cl2 k1 C、C6H5Cl+Cl2→HCl+对-C6H4Cl2 k2 D、在温度和碘的浓度一定的条件下,C6H5Cl和Cl2的起始浓度均为0.5mol.dm-3,30min后C6H5Cl有15%转变为邻-C6H4Cl2,而有25%转变为对-C6H4Cl2,求k1和k2。
A、A. We should lower national flag when the sun sets. B、B. We should lower national flag when the ship is in port. C、C. We should lower national flag when loading and unloading. D、D. We should lower national flag when the sun rises.
A、On board national flags should be hoisted when the sun sets. B、On board national flags should be hoisted when the sun rises. C、On board national flags should be lowered when the ship is in port. D、On board national flags should be hoisted flag when loading and discharging
A、NO+NO+Cl2=2NOCl B、Cl2=2Cl(慢)NO+Cl=NOCl(快) C、Cl2=2Cl(快)NO+Cl=NOCl(慢) D、2NO= N2O2(快)Cl2+ N2O2= 2NOCl(慢)