Answer:
Yes
Explanation:
All chemical processes must obey the Law of Conservation of Mass.
The burning of paper appears to disobey this law. The paper disappears in flame, leaving only a small amount of ash.
Paper(s) + O₂(g) ⟶ CO₂(g) + H₂O(g) + ash (s)
However, that’s because the main products, carbon dioxide and water vapour, are invisible gases.
Nevertheless,
mass of (paper + oxygen) = mass of (CO₂ + O₂ + ash)
