Question

Are the following statements true or false? (a) Formal charges represent an actual separation of charges. true false (b) ΔH o rxn can be estimated from the bond enthalpies of reactants and products. true false (c) All second-period elements obey the octet rule in their compounds. true false (d) The resonance structures of a molecule can be separated from one another in the laboratory. true false

Answer 1

Answer:

Explanation:

A) Formal charges represent an actual separation of charges.(FALSE)

(B) ΔHo rxn can be estimated from the bond enthalpies of reactants and products.(TRUE)

C)All second-period elements obey the octet rule in their compounds(FALSE).

(D)The resonance structures of a molecule can be separated from one another in the laboratory.(FALSE)

Bond enthalpy which is also reffered to as bond energy is the amount of energy that is required to break one mole of a bond.

taking the single bond between Oxygen and Hydrogen into considerationthe bond energy between their single bond is 463 kJ/mol.

formal charge is used for the comparison of the number of electrons present around an atom in a particular molecule with the number of electrons present around a neutral