SAT2化学题(在线等解答)
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SAT2化学题(在线等解答)
1. The molecule SO2 has a net dpole
net dipole 是什么?请详细解释一下.
2. oxygen has higher electronegativity than sulfer
答案说这句话错了,为什么错了?氧元素电负性难道不是比硫大吗?
谢谢!
1. The molecule SO2 has a net dpole
net dipole 是什么?请详细解释一下.
2. oxygen has higher electronegativity than sulfer
答案说这句话错了,为什么错了?氧元素电负性难道不是比硫大吗?
谢谢!
![SAT2化学题(在线等解答)](/uploads/image/z/16946744-32-4.jpg?t=SAT2%E5%8C%96%E5%AD%A6%E9%A2%98%EF%BC%88%E5%9C%A8%E7%BA%BF%E7%AD%89%E8%A7%A3%E7%AD%94%EF%BC%89)
我知道第一个,第二个就不懂,我也觉得应该是对的,net dipole means that there are multiple dipoles in given molecules,eg.SO2.Because oxygen is more electronegative than sulfur,a dipole is formed,which is a vector,pointing towards oxygen.When you considered the Lewis structure,there are two dipoles with a lone pair,the lone pair pushes more than S-O bonding,so it is a bent shape,therefore SO2 is polar.P.S.都考SATII了,我就发英文了