Answer:
Step-by-step explanation:
This question is showing a stoichiometric reaction. But the out put is Helium and nitrogen. while the input has Hydrogen and something else. Hydrogen doesn't turn into different elements. So I think the question is wrong. But, He is missing , and so is the nitrogen, but since that's not a choice, maybe they hope you'll put He ?? :/ But like I said , the question is just wrong.