Question

In which compound does the first element have an ion charge of 1+?

1.)
CoCl2
2.)
ClF3
3.)
ZnO
4.)
Au2S

Answer 1

#4 is the correct answer

Step-by-step explanation:

For #1, Cobalt has an ionic charge of +2

Chloride has a charge of -1, and Zinc has an ionic charge of +2. Therefore, Au has a charge of +1