皮皮学，免费搜题
登录
搜题
【简答题】
（16分 ）镁可与其他金属构成合金。镁铝合金的强度高，机械性能好。有“国防金属”的美誉。自然界中的镁元素主要存在中。海水中镁的总储量约为1.8×10 15 t。从海水中（主要含含Na + ，Cl — ，Mg 2+ 等离子）提取镁的工艺流程图如下： （1）A物质的化学式为 。操作1的名称为 。 （2）试写出向固体A中加入足量盐酸的离子方程式 。 （3）该反应的副产物主要有 等。 （4）若开始得到的固体A的质量为116g，不考虑物质的损失，则最后生成的Mg的物质的量为 mol。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】A.Milder weather in recent years. B.An increase in gasoline prices. C.Construction of bicycle paths. D.The invention of sturdy bicycles.
【简答题】阅读填空 (2019 年 省实初三一模 ) ★★★ Climate change could make food less healthy As levels of carbon dioxide — CO2 — in the atmosphere have been rising in recent years , the Earth has been warming. 1 That warmin...
【简答题】根据粗车的特点，对粗车刀应有什么要求？
【单选题】SKV Co has paid the following dividends per share in recent years: Year 20X4 20X3 20X2 20X1 Dividend ($ per share) 0.360 0.338 0.328 0.311 T...
A.
$4.67
B.
$5.14
C.
$5.40
D.
$6.97
【简答题】American public education has changed in recent years. One change is that increasing numbers of American parents and teachers are starting independent public schools called charter schools. In 1991, t...
【单选题】Text 3 In recent years, railroads have been combining with each other, mergingsintossuper systems, causing heightened concerns about monopoly. As recently as 1995,the top four railroads accounted for ...
A.
cost reduction is based on competition.
B.
services call for cross-trade coordination.
C.
outside competitors will continue to exist.
D.
shippers will have the railway by the throat.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
