4. When ______ is dissolved in ______, solution is formed.
5. When we salt to water until no more salt can be dissolved, the solution is said to be a _________ solution.
6. Big glucose crystal can be obtained from saturated glucose solution, which contains sucrose as the impurity, by the separation method -__________ .
7. Test for carbon dioxide - it turns ________ milky.
更新1:
這說明了投第一位回答者的是垃圾 -v-...
