第一题N2H4称为肼或联氨，N2H4和NH3的关系有如H2O2和H2O的关系。1．N2H4是几元碱，比较N2H4和NH3的碱性．还原性及热稳定性的大小。2．指出N2H4中N原子的杂化方式，已知该分子具有极性，最多会有几个原子共一平面。3．25℃时水溶液中讲与强磋反应结合一个质子的平衡常数为3．0 The first question N2H4 is called hydrazine or hydrazine. The relationship between N2H4 and NH3 is like the relationship between H2O2 and H2O. 1. N2H4 is a few-membered base and compares the alkalinity of N2H4 and NH3. Reducibility and thermal stability. 2. The method of hybridization of the N atom in N2H4 is pointed out. The molecule is known to have polarity, and there are at most a few atoms in one plane. The equilibrium constant of a proton in the aqueous solution at 3.25°C is 3.0