Will mark as brainliest. which statement correctly explains how magnesium and chlorine combine to form magnesium chloride? a) a cl atom donates two electrons to a mg atom b) an mg atom donates two electrons to a cl atom. c) a cl atom donates one electron to each of the two mg atoms. d) an mg atom donates one electron to each of the two cl atoms.

What happens when the temperature of a solution increases?

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.

)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.