Which of the following statements is true about compounds and mixtures?
Both mixtures and compounds always contain a fixed proportion of elements by mass.
Unlike compounds, very little or no exchange of energy occurs during the formation of mixtures.
A mixture cannot be easily separated into its constituents while constituents of a compound can be easily separated.
Compounds and mixtures can be separated into its constituents by chemical methods.
5 __________ is the ratio of molar enthalpy of a liquid to its boiling point.
6 The temperature at which the vapor pressure of a liquid equals the external pressure is called its _____________.
7 What law states that the vapor pressure of a solution containing a non-volatile solute is equal to the vapor pressure of pure solvent times the mole fraction of the solvent?
4. Compounds and mixtures can be separated into its constituents by chemical methods. 5. Trouton’s rule 6. Boiling point 7. Raoult's law