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The experiment described in the question given above supports the law of conservation of mass.
In chemistry, decomposition may be defined as a type of chemical reaction through which one reactant molecule significantly breaks down into two or more product molecules.
The same concept is applied in the question as well where the heating of mercuric oxide produces mercury and oxygen. According to the question, the mass of the reactant is equal to 2.16g, while the mass of the product is equal to 2.00 g plus 0.16 g which is togetherly 2.16 g.
Therefore, the experiment described in the question given above supports the law of conservation of mass.
To learn more about the Law of conservation of mass, refer to the link:
https://brainly.com/question/19038178
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