Â­The most common type of bank account, and probably the first account you'll ever have (after a checking account), is a savings account. Savings accounts allow you to keep your money in a safe place while it earns a small amount of interest each month. These accounts usually require either a low minimum balance, like $25, or may require no minimum balance at all. This depends on the bank and the type of account.
Hydrogen peroxide is a chemical compound with the formula H 2O 2. In its pure form it is a colourless liquid, slightly more viscous than water; however, for safety reasons it is normally used as an aqueous solution.
How is hydrogen peroxide used to whiten teeth? Teeth contain organic molecules in their enamel and the dentin. These molecules reflect light and are responsible for their coloration. The more complex these molecules, the more light they reflect and the more teeth appear stained or discoloured.