How would isopropanol behave when poured out of its container onto a table

Which of these is a physical property

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

Ireally need ! calcium metal reacts with a potassium chloride solution to form calcium chloride and potassium ions. balance this reaction. (s) + (aq) → cacl2(s) + +(aq) a) 1, 2, 1, 2 b) 1, 2, 1, 1 c) 1, 1, 1, 1 d) 2, 1, 2, 1