mole ratios of hydrazine should be 1:2. I could be wrong. Are there any options to choose from?
Answer:

Explanation:
The formula for tin(IV) sulfide is SnS
33233728793278237876548742787874578378572098-2932-=93788784787489
mass (m) = ? , volume = 18.0 ml , density = 1.42 g/ml .

I hope I helped you^_^