please do all of them!

3. Complete the following table for BrF3. (4 Marks) Molecule Lewis Diagram VSEPR Family VSEPR Shape Polar or Non-Polar BrF3 4. Consider the reaction: C3H2(g) + O2(g) CO2(g) + H2O(l). Determine the heat of combustion for propane from the following enthalpies of formation. (5 Marks) , for C3H8 = -104.7 kJ/mol AHfor CO2 (g) = -393.5 kJ/mol AHf for 02 (g) = 0 kJ/mol AH; for H20 (1) = -285.5 kJ/mol