Question

Which one of the following compounds contains an ion with a 3+ charge?

Na2O

CuCl

MgCl2

KCl

FeCl3

Answer 1

It will be a metal, as gases have negative charges.
Na has 1+
Cu has 2+/1+
K has 1+
Fe how ever has 3+/2+
Mg has 2+
So your answer is?

Answer 2

You can also look at your compound and tell right away which one it is, as Cl has a charge of 1-, and you have to balance compounds as well.

Answer 3

so it would be Cucl?

Answer 4

Read what I've said and look at what your question is asking.

Answer 5

i am so confused. i suck at this

Answer 6

the writing in pink represents the charge