化学实验报告:将镁,钠,钾,钙放入水中内个实验
A)purpose
use 1-3 short phrases to accurately decrible the purpose of lab
examples:
-to investigate ....-to measure....-to identify(no need for full sentence)
-to study ...-to find ....
化学实验报告:将镁,钠,钾,钙放入水中内个实验
A)purpose
use 1-3 short phrases to accurately decrible the purpose of lab
examples:
-to investigate ....-to measure....-to identify(no need for full sentence)
-to study ...-to find ....
a)目的
使用1-3短语准确decrible目的的实验室
例子:
对调查....-衡量....-确定(不完整句子的需要)
对研究...-找到....
2Na + 2H2O = 2NaOH + H2↑ 2K + 2(H2O) = 2KOH + H2↑
Ca+2(H2O)=Ca(OH)2+H2↑
镁在热水中反应,生成了氢氧化镁和氢气
Mg+2H2O(热水)=Mg(OH)2+H2↑
我只会方程式,不知道能不能帮上忙