ABSTRACT
To help understand solutions, consider a simple experiment. Run some water from a faucet into a glass and examine it. Depending on the condition of the local water supply, it will probably appear clear. If tasted, it will probably not have any particularly strong avors. Now, add a teaspoon of sugar and stir the contents of the glass; you will notice that the sugar will begin to disappear, and the water around the sugar will start to appear cloudy or streaked. With continued stirring, the sugar will seem to disappear completely, and the water will look as clear as it did when it came out of the tap. However, it will have a sweet taste; some of its properties have therefore been changed by the addition of sugar.
