What items are you separating? Please be more specific with your answer!
Let's write the equation

According to law of conservation of mass .
- Mass of products=Mass of reactants
Let required value be x




Solving part-1 only
#1
KMnO_4
- Transition metal is Manganese (Mn)
#2
Actually it's the oxidation number of Mn
Let's find how?




- x is the oxidation number
#3
- Purple as per the color of potassium permanganate
#4

Answer:
The answer is C.
"The atomic number and mass number."
Explanation:
Got it right on Edge!
Have a good day!