Answer:
a chemical reaction
Explanation:
The fact that you are combining two different elements together makes this a chemical reaction. (hope that helps)
Answer: What is the mass of disulfur pentoxide (S2O5)?
Explanation:144.14g/mol
The balanced chemical equation is :

Moles of
,

Now, by given chemical equation , we can see 2 mole of
react with 1 mole of
.
So , 2.27 mole react with :

Mass of oxygen is :

Therefore, mass of oxygen in grams produced is 18.16 g.
Hence, this is the required solution.
Answer:
both the substances will evaporate
Explanation:
Answer would be A)the atom