The Lewis structure of N2H2 shows __________.
A、anitrogen-nitrogentriplebond
B、anitrogen-nitrogensinglebond
C、eachnitrogenhastwonon-bindingelectronpairs
D、eachhydrogenhasonenon-bondingelectronpair
E、eachnitrogenhasonenon-bindingelectronpair
发布时间：2025-11-20 14:48:42
