Energy arrives from the Sun and is distributed around Earth by which processes? A tectonic plates

B radiation and convection

C solar flares

D subduction and rift zones

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

)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 type of organic molecule comprises the majority of a potato?