1.http://www.4shared.com/document/YhnUm1Zk/C3_31_Water__Solubility.html
2.http://answers.yahoo.com/question/index?qid=20081015194801AANXWRZ
3.The Water Cycle
The Sun supplies rivers, lakes and oceans with energy, allowing the water there to evaporate. The water vapour formed rises into the atmosphere, where is cools and condenses to form droplets which clouds are made of. Eventually the water droplets fall as rain, replenishing the water sources they originally came from. This is the water cycle. Water covers around two thirds of the Earth’s surface, and is absolutely essential to all life.
Solubility
We call the amount of solute which we can dissolve in a certain amount of solvent the solubility of that substance. This is usually measured in grams (of solute) per 100g (of solvent). The most common solvent used is water. Generally speaking, solubility of solid solutes increases with temperature. A saturated solution is a solution in which as much solute as possible has been dissolved. Heating the solution will allow more of the solvent to be dissolved until it becomes saturated again. Of course, this means when the hot saturated solution cools, some of the solute will have to come back – so it crystallises back out of the solution.
2.http://answers.yahoo.com/question/index?qid=20081015194801AANXWRZ
3.The Water Cycle
The Sun supplies rivers, lakes and oceans with energy, allowing the water there to evaporate. The water vapour formed rises into the atmosphere, where is cools and condenses to form droplets which clouds are made of. Eventually the water droplets fall as rain, replenishing the water sources they originally came from. This is the water cycle. Water covers around two thirds of the Earth’s surface, and is absolutely essential to all life.
Solubility
We call the amount of solute which we can dissolve in a certain amount of solvent the solubility of that substance. This is usually measured in grams (of solute) per 100g (of solvent). The most common solvent used is water. Generally speaking, solubility of solid solutes increases with temperature. A saturated solution is a solution in which as much solute as possible has been dissolved. Heating the solution will allow more of the solvent to be dissolved until it becomes saturated again. Of course, this means when the hot saturated solution cools, some of the solute will have to come back – so it crystallises back out of the solution.
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