CH3-O-CH3 是写作 methyl methyl ether 还是 dimethyl ether?

CH3(CH2)2CH3 和(CH3)2CHCH3 是同种物质还是同分异构体 CH3CH(CH3)CH3和CH(CH3)3 是同分异构体还是同种物质 where the ether children are linolelaidic acid methyl (CH3)2-CH2-O-CH3是什么物质 (CH3)2CHCH(CH3)(CH2)3CH3的名称是? 8,11-Octadecadienoic acid,methyl Cyclopropylidene-acetic acid methyl ester 怎么重排反应?像+CH2 CH3| |CH3-C-CH2-CH-CH3|CH3重排后为什么是CH3 CH3| |CH3C where the ether children are的意思 一氯乙烷CH2Cl-CH3可以写作CH3-CH2Cl吗? 求教此物质分子式4-O-Methylphenylhydrazono-3-methyl-2-pyrazolin-5-one