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Sagot :
Vaporization totally overcomes intermolecular attractions. Water has an enthalpy of vaporization (energy required to boil) of 40.7 kJ/mol.
A is the ideal answer.
Which of the following best explains why CaF2 dissolves in water with a positive value for H?
Which of the following best exemplifies how the positive value of H° for CaF2 dissolving in water is explained? In the crystal lattice, Ca2+ ions and F- ions have very potent ion-ion interactions.
Which of the following best justifies the claim and accurately determines whether Cl or Ar has the higher first-ionization energy?
Due of its greater effective nuclear charge, Ar. The atomic radius and initial ionization energy of several elements are displayed in the table above.
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