When concentrated sulfuric acid is poured onto sugar in a beaker and stirred, a vigorous exothermic reaction eventually occurs. a lot of steam is produced, and a black 'snake' consisting mainly of carbon rises out of the beaker. as this reaction takes a while to really get going, which of the actions listed below might speed up this process?

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

)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.

How do you determine the percent yield of a chemical reaction