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.
Raoult's law
Enthalpy rule
Trouton’s rule
Entropy rule
6 The temperature at which the vapor pressure of a liquid equals the external pressure is called its _____________.
Boiling point
freezing point
Melting point
Condensation point
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?
Gay-Lussac’s Law
Raoult's law
Henry's law
Dalton's law
1
Expert's answer
2015-05-06T10:34:03-0400
4. Compounds and mixtures can be separated into its constituents by chemical methods. 5. Trouton’s rule 6. Boiling point 7. Raoult's law
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