Chemistry questions. In need of help?

Posted on 1970-01-01 00:00:00 in Chemistry by DEV

I'm not sure if my tables on pages 1-3 are correct. If you could help me, that would be great 

Page 1 is titled “Solutions of Liquid” 
Page 2 is titled “Solutions of Solids in Water” 
Page 3 is titled “Iodine in Water and in Cyclohexane & NaCl in Water and in Cyclohexane” 

Questions: 

1. Solutions of gases in water. Is carbon dioxide more soluble in hot water or in cold water? 

2. Are all ionic compounds soluble in water? 

3. Food coloring in hot and cold water. Explain the difference between dispersion of food coloring in the beaker of hot water and the beaker of cold water. 

4. Sugar in hot water and in cold water. How does temperature affect the solubility of a solid in water? 

5. What conclusion can you make from the above table on pg.3 about the type of solute that best dissolves in a certain type of a solvent? 

6. Which ionic substances dissolve in water? 

7. Which molecular substances dissolve in water? Why? 

8. Which molecular substances do not dissolve in water? Why?

9. How can many solids be made more soluble in water? 

10. How can gases be made more soluble in water? 

11. What are the factors that influence how a substance dissolves in water?

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