Object a has a mass of 500g and a density of 5.00 g/cm3 object b has a mads of 650. g and a density of6.5 g/cm3 which object would displace the most liquid? explain

We have to calculate the volume of these objects.

Density=mass/ volume            ⇒volume=mass/ Density.

1)Object a
Data:
mass=500 g
density=5 g/cm³

Volume=500 g/ (5g/cm³)=100 cm³

2)volume of object b
Data:
mass=650 g
density=6.5 g/cm³

Volume=650 g /(6.5 g/cm³)=100 cm³

Therefore, the volume of these objects is the same.

both objects would displace the same amount of liquid, because the volume would be the same.

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na