Energy Transformations Sraphic Organizer: Use the terms in the word bank to complete the graphic organizer below. Word Bank thermal electrical Law of Conservation of Energy mechanical Energy chemical light energy transformation forms include TYPE HERE 1. cannot be created or destroyed according to 2. TYPE HERE from reactions that occur between substances sum of motion and position 7. TYPE HERE 3. TYPE HERE

)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 typical rotational frequency frot for a molecule like n2 at room temperature (25∘c)? assume that d for this molecule is 1å=10−10m. take the total mass of an n2 molecule to be mn2=4.65×10−26kg. you will need to account for rotations around two axes (not just one) to find the correct frequency. express frot numerically in hertz, to three significant figures.

The decimals you found in part b are called repeating decimals. in the gizmo, repeating decimals are rounded to two places. how does the gizmo show you that a decimal has been rounded?