1. The problem statement, all variables and given/known data 1. What is the molecular shape of Hydrazine N2H4 w.r.t. N atom? 2. H2S and H2O, which one has a larger bond angle? 2. The attempt at a solution 1. Trigonal Pyramidal is the answer given. But Hydrazine has 5 atoms around its central atom and I'm unable to fathom why is it in trigonal pyramidal. 2. H2O is the answer as O is more electronegative. But why is this the case? I've checked the internet and nothing tells me why an electronegative central atom could cause a larger bond angle. Thank you for your time.