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Which two observations below can be evidence that a chemical change has occurred A. Production of bubbles (a gas) B. melting C. vaporization D. production of heat

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asked May 18, 2020 65.8k views

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Which two observations below can be evidence that a chemical change has occurred

A. Production of bubbles (a gas)
B. melting
C. vaporization
D. production of heat

Chemistry
middle-school

Rajan Lagah asked

by Rajan Lagah

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1 Answer

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Vaporization and Production of bubbles. Production of heat and melting are physical changes

Ornithopter answered May 22, 2020

by Ornithopter

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Which two observations below can be evidence that a chemical change has occurred A. Production of bubbles (a gas) B. melting C. vaporization D. production of heat

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