**50 points** asap a few times a month, janice described the moon she saw in the sky. her observations are recorded in the following table below. date appearance of moon august 10 full sunlit circle august 18 left half lit circle august 23 less than half lit part 1: use complete sentences to explain why the appearance of the moon changes from august 10 to august 23. what is the name for each phase she saw? part 2: which two phases of the moon are expected to come immediately after the phase on august 23?

)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.

What is the correct name for the compound cocl3? a) cobalt(i) chloride b) cobalt(i) chlorate c) cobalt(ii) chlorate d) cobalt(iii) chloride

The bohr model of the atom explained why emission spectra are discrete. it could also be used to explain the photoelectric effect. which is a correct explanation of the photoelectric effect according to the model?