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Physics, 08.11.2019 09:31 joannegrace869

When an effervescent tablet is dropped in water, what indicates that a chemical change is occurring?
a. the evolution of a gas
b. the condensation of a gas
c. the melting of a solid
d. the subliming of a solid

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When an effervescent tablet is dropped in water, what indicates that a chemical change is occurring?...
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