What is the formula for copper(II) chloride? A. CuCl B. CuCl3 C. Cu2C D. CuCl2 E. CoCl2
The copper(II) means that the copper ion has a +2 charge. The symbol for copper is Cu, so that eliminates choice E. Since the symbol for chlorine is Cl and chlorine ions almost always have a -1 charge, and since the charges of the positive and negative ions have to balance out to be zero, that means CuCl2 would be the right answer (letter D).
This Site Might Help You. RE: What is the formula for copper(II) chloride? which one? What is the formula for copper(II) chloride? A. CuCl B. CuCl3 C. Cu2C D. CuCl2 E. CoCl2
Copper Ii Chloride Formula
D. CuCl2 is the right answer because copper(II) means that it has a 2+ charge on it and this is balanced in D by the two chlorine atoms each having a 1- charge. As for the other ones, A. CuCl is called copper(I) chloride with a 1+ charge being balanced by the 1- charge on the chlorine B. CuCl3 would be copper(III) chloride C. Cu2C this won't exist because carbon likes 4 things to bind to and here it only has 2 leaving it with a 2+ charge which is very unstable E. CoCl2 is not even a copper compound but is rather a cobalt compound so that one is eliminated.
