(a) Account for formation of the following series of oxides in terms of the electron configurations of the elements and the discussion of ionic compounds in Section 2.7: K2O, CaO, Sc2O3, TiO2, V2O5, CrO3
(b) Name these oxides.
(c) Consider the metal oxides whose enthalpies of formation (in) are listed here.

Calculate the enthalpy changes in the following general reaction for each case:
Mn Om(s) + H2 (g) †’ nM(s) + mH2O (g)
(You will need to write the balanced equation for each case and then compute ΔHo.)
(d) Based on the data given, estimate a value of ΔHf° for Sc2O3(s).

Transcribed Image Text:

Oxide K20(s CaOs) Tio2(s)V205(s) 一363.2 一635.1 938.7 1550.6