What happens to the mass of substances during a chemical reaction? A Mass is lost. B Mass is gained. C Mass is not gained or lost. D Mass is both gained and lost.

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asked Oct 16, 2019 135k views

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What happens to the mass of substances during a chemical reaction? A Mass is lost. B Mass is gained. C Mass is not gained or lost. D Mass is both gained and lost.

Geography
college

Walery Strauch asked

by Walery Strauch

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1 Answer

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its (d) i know that for a fact because i am smart? i am a fifth grader !!!!!!!1

Rui Costa answered Oct 22, 2019

by Rui Costa

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