Be+2 Cl-1 ------> these are the ions and their charges Be+2 Cl-1 Cl-1 -------> make the charges add up to zero by adding a negative Cl atom to cancel out the +2 positive Be atom BeCl2 ------> simplify Name is Beryllium chloride

In neurons, ________ ions are at higher concentration inside the cell and ________ ions are at higher concentration in the extracellular fluid. A) Cl; organically bound B) Cl; K C) K; Na D) Cl; Na E) Na; K

52.45% K. Because: The formula for Potassium Chloride is KCl because K+ + Cl- --> KCl Atomic weight of K: 39.0983 Atomic weight of Cl: 35.4527 total: 74.551 39.0983/74.551 = .52445 so in percent form rounded it is 52.45% approx.

KCl, K is potassium which has a +1 charge and Cl is Chloride which has a -1 unless by itself because it is a diatomic but in this formula it remains a -1 charge.