The correct answer is Axial Position
Reason:
When axial groups lie on the opposite sides of the ring, they are capable of holding large molecule and are stable as there is less steric hindrance between those groups. Also the molecular distance between them is large.
The scale reads 3 so it is displacing 5 kg of water
find volume of rock using volume of water it displaces:
volume of rock = 5 kg(m^3 / 1000 kg) = .005 m^3
mass of rock = 8 kg
density = 8 / 0.005 (kg/m^3)
1600 Kg/ m^3
You would look for the chemical and physical properties because by identifying what properties those metals fit into it is easier to compare and contrast what metal they are