If it has a positive charge it is a cation if negative it is an anion .
I attached a chart that will help you know the charges of the elements
It's possible the answer is petrified fossil
Answer:
2M
Explanation:
M=mol/L
1. Find moles of CoCl2
mass of substance/molar mass = 130/129.833 = 1.001 mol
3. Substitute in molarity equation
M=(1.001/0.5)
M= around 2M