During an investigation, a scientist heated 123.6 g of copper carbonate till it decomposed to form a black residue. The total mass of the black residue formed was 79.6 g. Does the law of conservation of mass hold true in this case? Use complete sentences to justify your answer based on numerical calculations.

Question

Maximilian Barton

Physics

24 September, 16:44

During an investigation, a scientist heated 123.6 g of copper carbonate till it decomposed to form a black residue. The total mass of the black residue formed was 79.6 g. Does the law of conservation of mass hold true in this case? Use complete sentences to justify your answer based on numerical calculations.

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Jaydan · Answer 1

The answer is no. The law of conservation of mass does not hold true in this case because it says that the mass remains constant through change. As you can see, the mass was 123.6 grams and it is now 79.6 grams.