Due to lava which heats water where water vapour is comes
I think it’s Object 3
Hopefully this helps
The symbolic representation of its compound and its composition.
or a chemical formula that indicates the kinds of atoms and the number of each kind in a molecule of a compound.
ANSWER IS B
(16.3 L) / (22.414 L/mol) x (4.0026 g He/mol) = 2.91 g