What is the lewis structure for h2se

Basically since there’s 2 hydrogen’s there will be two H’s on either side of your other element. And Se is in group 6 which means it has 6 valence electrons. When you combine 6 and 2 from the hydrogen you get 8. You then should place 8 dots around Se two on each side.

So something like H Se(with 8 dogs around it) H

C) the increase in atmospheric pressure pushes the walls of the balloon outward thus making it  is the answer.hope i you.