Chemistry! :]

So this week we did a lot of interesting labs involving bases and acids and trying to figure out the pH level of a certain solution. It was cool to see how ROY G. BIV applied to determining of what the pH was. Basically if the solution turned into any colors from red to yellow, it is an acid (pH 0-6). Colors green to purple meant the solution is basic (pH 8-14). Yellow usually is a neutral color, which means the pH level of that solution is 7. We also learned with litmus paper, if it was blue to red, its an acid, but if the color goes from red to blue, its a base-a-roo. ahhh! we have a test tomorrow!! The material is so confusing and i dont really understand the ionization stuff :[ I have to study tonight!!!

Like Dissolves Like

Dissolving means to mix two substances it together to create one solution. The solute combines with the solvent so the two substances become one (i.e. sugar and water)
There is a rule that goes along with this, and that is "like dissolves like":
"Like dissolves like" means that a solvent dissolves a solute with the same polarity; therefore a polar solvent will only dissolve with a polar solute and a non polar solvent will only dissolve with a non polar solute. In the example on the left, the oil and water do not dissolve because water is polar, but oil is non polar, therefore they will eventually separate even if you try and mix them.