Hydrogen & Hydroxide ions

[Buffy31]

Hey

I need to know the differences between Hydrogen Ions & Hydroxide Ions...I know a lot (I think) about Hydroxide Ions, but ahve yet to find much on Hydrogen Ions??

Hydroxide ions: produced when water molecules H2O ionize to become hydronium & hydroxide ions

water molecules that carry NEG charge, because they LOST a pos. charged hydrogen ion

is a base ?

pH of 7 or lower

SO..is that all correct??? and if so, hydrogen ions must be an acid?? examples?

thanks

[sharkdiver]

All aqueous solutions of compounds are in their ionic state. Whille water is called H2O, in reality it is a combination of the hydrogen cation H+ and hydroxyl or hydroxide ion OH-.

pH is the measurement of the acidity or alkalinity of a solution. The term "p" represents -log10, so pH is the negative logarithm of the hydrogen ion concentration of a solution. A neutral solution (pH 7) has equal numbers of hydrogen and hydroxyl ions (H+=1x10-7, OH-=1x10-7). As the hydrogen ion concentration increases, the pH decreases and the solution becomes more acidic. Conversely, as the hydrogen ion concentration decreases, the pH increases and the solution becomes more basic (alkaline).

Pure water has a theoretical pH of 7.0, although in reality it is often a little off due to the effects of dissolved gases.

Hope this helps!