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signs of a chemical reaction occurring include:

-formation of a gas (bubbles)

-change in color

-transfer of energy (change in temperature, giving off light)

-formation of a precipitate (if a solid forms out of solution)

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Q: How do you know that a chemical change is happening in the flask?
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A change in matter that produces new substances is called?

Chemical change. References: Intro to Matter book.


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You know a chemical change happened if: -A change in color -Formation of a precipate (a solid) -Formation of a gas


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A substance that undergoes a chemical change is still the same substance after the change?

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A change in matter that produces new substances is called?

Chemical change. References: Intro to Matter book.


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