ANYONE GOOD AT CHEMISTRY?? :))
If the formula for a compound is represented by X2Y3 and the charge on the Y ion is -2, what is the charge in the X ion?

Answer choices:

+1

+2

+3

+4

Question

ANYONE GOOD AT CHEMISTRY?? :))
If the formula for a compound is represented by X2Y3 and the charge on the Y ion is -2, what is the charge in the X ion? 

Answer choices:
		
+1
		
+2
		
+3
		
+4

jfraser · Answer

Compound X2Y3 MUST BE neutral (it's a rule). If each ion of Y has a -2 charge, that's a total of -6 "pieces" of negative charge.

The X ions MUST HAVE the same total charge, only positive, if the comound is going to be electrically neutral. That means the 2 X ions have to add up to a +6 charge. What's the easiest way for two identical ions to add up to +6?

anonymous · Answer

Two positive threes?

jfraser · Answer

correct

anonymous · Answer

thank you!!!!! :) you're amazing, I understand now