Complete and balance the following equations, and identify the oxidizing and reducing agents. (Recall that the O atoms in hydrogen peroxide, H2O2, have an atypical oxidation state.)

(a) NO2⁻¹(aq) + Cr2O7⁻²(aq) → Cr³⁺(aq) + NO3⁻¹(aq) [acidic solution]
(b) S(s) + HNO3(aq) → H2SO3(aq) + N2O(g) [acidic solution]
(c) H2O2(aq) + ClO2(aq) → ClO2⁻¹(aq) + O2(g) [basic solution]

1) a. water molecule breaks up into hydrogen and oxygen on passing electricity. does this involve breaking intermolecular or intramolecular forces of attraction. explain b. on boiling water changes to water vapor. does this involve breaking intermolecular or intramolecular forces of attraction. explain methanol evaporates faster than water. contrast the intermolecular forces and the vapor pressures of methanol and water?