carbon-absorbing

郜甄璐1916由+4价碳元素与 - 1价氢元素形成化合物的化学式为 -
吕雷孙18512635295 ______[答案] 应该是碳-4价 氢+1价 H除了遇到活泼金属,总是+1价 CH4

郜甄璐1916《碳和碳的氧化物》一,碳的几种单质 -
吕雷孙18512635295 ______[答案] 第一课中有讲到,金刚石,石墨,C60

郜甄璐1916“立方烷”是一种新合成的烃,其分子为正方体结构,其碳架结构如图所示:(1)“立方烷”的分子式是______;“立方烷”有多种同分异构体,其中一种... -
吕雷孙18512635295 ______[答案] (1)该烃的每一个碳原子均和三个碳原子成键,剩余的一个键是和氢原子成键,所以该烃的分子式为:C8H8,比饱和的烷烃少10个氢原子,所以不饱和度是5,属于芳香烃则含有苯环,占4个不饱和度,另一个不饱和度在碳碳双键上,所以于芳香烃的...

郜甄璐1916求解这句英语有语病吗,As the demand for environment - friendly and high - efficiency energy sources increases,the exploration of carbon materials used in ... -
吕雷孙18512635295 ______[答案] 合适啊,是形容carbon materials的后置定语the exploration (of carbon materials (used in energy storage)) has become a hot spot in recent years后半句的主干是exploration has become a hot spotexploratio...

郜甄璐1916单句改错:it is pretty well understood how control the flow of carbon dioxide答案是how→what请问为什么是这个答案?how后面加to,请详细说明. -
吕雷孙18512635295 ______[答案] it is pretty well understood what( control the flow of carbon dioxide) ( control the flow of carbon dioxide)作为补足语修饰what

郜甄璐1916Carbon - neutral by: 2017 这是什么意思啊,求大神求解答 -
吕雷孙18512635295 ______ carbon neutral 碳中和;碳平衡 carbon-neutral Carbon-Neutral Travel 无碳旅游 carbon-neutral wedding 抵消掉碳排放的婚礼 Carbon-neutral economy 低碳经济 是不是一本书或者协议

郜甄璐1916carbon - zinc battery是什么意思 -
吕雷孙18512635295 ______ carbon-zinc battery 碳锌电池 双语对照 词典结果: carbon-zinc battery 炭锌电池; 以上结果来自金山词霸

郜甄璐1916Carbon - arc 是什么意思? -
吕雷孙18512635295 ______ In the valve repair welding procedure

郜甄璐1916carbon - based chemical是什么 -
吕雷孙18512635295 ______ 直译为以碳为基础的化学,其实就是指有机化学