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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
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Jul 13, 2017
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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
Physics
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Lukaszkorecki
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I think it is a. the evolution of a gas
Alejorivera
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Jul 17, 2017
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