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SIZIF [17.4K]
3 years ago
8

A Student notes that a chunk of wood is much lighter after it has been burned. He concludes that burning a substance destroyed s

ome of the mass in that substance. Doi you agree or disagree explain why or why not.
Chemistry
1 answer:
denpristay [2]3 years ago
6 0

Answer:

No.

Explanation:

When mass is destroyed, it has to have been transformed into something else. Otherwise that would violate the Law of Conversion of Mass. In this case, the wood converted some of its mass in chemical energy to thermal (or heat) energy.

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We must note that gas evolution is one of the signs that a chemical reaction has taken place. Hence, we must consider the options and look out for an option in which reaction with HCl does not lead to a gaseous product. This is the option that does not lead to evolution of a gas.

Let us consider the reaction; NaNO3(s) + HCl(aq) ---> NaCl(s) + HNO3(aq), there is no gaseous product hence NaNO3 does not result in gas evolution upon addition of 6M HCl.

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Learn more about evolution of gas: brainly.com/question/2186340

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