Question 1 Part A
? Question
Drag one of the white atoms to a different part of the screen. Which statement describes what happens?
The two white atoms repel one another and move back to opposite ends.
The two white atoms join in a new covalent bond, making a new molecule.
The bond angle changes from 180.0 degrees to 90.0 degrees permanently.
The second white atom moves so that it is no longer a part of the molecule.
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)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.