Scientific Method: How can a causal question be answered?

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.

50 points! need answer asap. what type of organic compound contains the following functional group? (2 points)