Question

How can you prove experimentally the law of conservation of mass?

Answer 1

Experimental Proof:

Burn wood in a controlled enviroment

Explanation:Measure the gases and the charred wood. The mass will be the same as before, only if it is a controlled experiment

Answer 2

Answer:

1. Take copper sulphate solution and dissolve it in  water in a conical flask.
2. Now take solution of sodium carbonate in the  ignition tube and hang it carefully so that the  two do not get mixed. Put a cork on the flask.
3. Weigh the flask with its contents carefully.
4. Now tilt and shake the flask so that the solutions of  copper sulphate and sodium carbonate get mixed
5. Weigh again
6. The chemical reaction takes place in flask.
7. Put cork on the mouth of the flask so that  reactants and products do not spill out of flask.
8. The mass of flask and its contents remain the  same before as well as after the reaction that  proves the law of conservation of mass.