how many chloride (CL negative two) ions are needed to balance a positive charge of Barium positive two?
The formula for barium chloride is BaCl2. Cl ion has a -1 charge, not -2.
To determine the number of chloride ions needed to balance a positive charge of barium, we need to consider the charges of the ions involved.
Barium has a positive charge of +2 (Ba2+).
Chloride ions have a negative charge of -1 (Cl-).
Since opposite charges attract, the number of chloride ions needed will depend on their charge relative to the charge of the barium ion. In this case, we need to balance the +2 charge of barium with negative charges from chloride ions.
The charge of barium (+2) needs to be balanced by negative charges from chloride ions (-1). Therefore, two chloride ions are needed to balance the charge of one barium ion.
So, to balance the positive charge of a barium ion (+2), we need two chloride ions (-1) as the charges will cancel each other out.
In summary, two chloride ions (Cl-) are needed to balance the positive charge of a barium ion (Ba2+).