一个二氧化碳分子的质量约为A．7×10－26kg B．7×10－23kg C．7×10

一个二氧化碳分子的质量约为

A．7×10^－26kg B．7×10^－23kg C．7×10²³kg D．7×10²⁶kg

答案

相关题目

Womenare questioning their t______ role in society, as wives and mothers.

质量相等的甲、乙两车从某点同时开始沿直线同方向运动，

质量相等的甲、乙两车从某点同时开始沿直线同方向运动，甲以一定的功率加速，乙做匀加速运动。经过t时间，甲、乙速度相同，设两车所受阻力相等

以下是四种微粒的结构示意图，下列有关各微粒的说法中，

以下是四种微粒的结构示意图，下列有关各微粒的说法中，错误的是（） A．①的化学性质比较稳定 B．③④属于同种元素 C．④是一种阴离子�

_______ was known to them that the boss had broken his promise______ he would g

_______ was known to them that the boss had broken his promise______ he would give them a rise. A. What; what B.It; which C.It; that

阅读下面材料，回答下列问题。目前”长三角”地区正处在

阅读下面材料，回答下列问题。目前”长三角”地区正处在两种产业转移并行的关键阶段，一是国际产业向这里的沿海、沿江、沿高速公路等交通优势

Poor as he is, he has a wife and six children________. A．to support

Poor as he is, he has a wife and six children________. A．to support B．to be supported C．support D．being supported

As I will be away for at least a year, I’d appreciate _____ from you now and t

As I will be away for at least a year, I’d appreciate _____ from you now and then so that I can know how everyone is getting along. A. having heard B. to hear �

小明的妈妈正在厨房炒菜，他一进门就闻到诱人的香气，这

小明的妈妈正在厨房炒菜，他一进门就闻到诱人的香气，这是因为( )。A. 分子间有间隙 B. 分子是由原子构成的C. 分子的质量很小 D. 分子在不停地运

一个二氧化碳分子的质量约为A．7×10－26kg B．7×10－23kg C．7×10

答案

相关题目

最新题目