posted by Maria .
balance the chemical equation:
Al(OH)2-- Al^2+ +OH^-
Al(OH)2 ==>Al^+2 + 2OH^- but that doesn't tell me much. I don't know what Al(OH)2 is. There is a Al(OH)3; i.e., aluminum oxide.
No! It Al(OH) with the subindex of 2 ==> Al to the power+ plus OH with a negative sign on the top!
Then it is balanced correctly if the -- you have is an arrow --> and not two minus signs.