Water has a density of 1.0 g/mL. Which of these objects will float in water .. Object A: mass 50.Og; volume 60.8 ml. Object B: mass 65.2g ; volume
42.1 mL. Object C: mass 100.0g: volume 20.0 mL *

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