4. You learned in lecture that trends in M-C bond strengths generally parallel those found in H C bond strengths. Provide explanations for the following 3 phenomena. (a) M-OR bonds in early transition metals are too strong relative to H-OR bond strengths. (b) Metal alkoxide (i.e. M-OR) bonds are much stronger in high oxidation state, early transition metal complexes as opposed to low oxidation state, late transition metal complexes. Explain this trend in increasing bond dissociation energies. (c) M-S and M-Si bonds in late transition metals are too strong relative to HS and HSi