Question

Does the following picture Obey the law of Conservation of Mass

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Answer 1

I can’t see the picture from the filename alone. Could you re‑upload the image or describe what it shows (a chemical equation, apparatus, reaction photo, etc.)?

Meanwhile, here are quick ways to decide whether the situation shown obeys the law of conservation of mass:

If it’s a chemical equation
- Count the atoms of each element on the reactant side and on the product side.
- If every element has the same total number of atoms on both sides, the equation obeys conservation of mass. If not, add integer coefficients to balance it.
- Example: 2 H2 + O2 → 2 H2O has 4 H and 2 O on both sides, so mass is conserved.

If it’s an experimental picture (reaction in a vessel)
- Conservation of mass always holds in a closed system: total mass of everything (solids, liquids, gases) stays constant.
- If gases escape or solids are removed from the system, measured mass of the remaining material can change even though total mass of universe is conserved.
- To test experimentally: perform the reaction in a sealed container and weigh before and after. If the mass changed, either the system wasn’t closed or measurement error occurred.

Other notes
- In ordinary chemical processes mass is conserved (atoms are rearranged). Only nuclear reactions convert mass to energy in a detectable way, so apparent non‑conservation there is explained by mass–energy equivalence.

If you upload the image or tell me the equation or setup shown, I’ll check it step by step.