Which of the following explains why elements in column 17 (the halogens) are very reactive?Kat is investigating a compound and sees that it has even stronger hydrogen bonds than water. What can Kat conclude is most likely true about the specific heat of this compound?

What is the mass of each element in a 324.8 sample of co2

)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 know when a chemical reaction has occurred