Gen Chem Question

[vash429]

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When finding something like Ksp of BaCl2. BaCl2-->[Ba^2+] [Cl]^2

How do I know when the 2 on the Cl stays in or goes out of parenthesize. Sorry I know its a noob question . I just have been reviewing everything so in depth starting to forget the basics. The day is coming soon 🙁

I have issues with the net ionic equation problems usually any tips.

 

[joeeeey3]

BaCl2 will dissociate to Ba2+ and Cl-, but you need to balance the equation like so:

BaCl2 -> Ba2+ + 2Cl-

the coefficient (number infront of the ion like in Cl) will be out of the parenthesis,
while the charge (like 2+ in Ba) will be inside the parenthesis