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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Physics

Nylah Meadows

1 July, 14:08

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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Kadyn Walter · 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.