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How can you tell that a chemical change has occurred?

User Jpinelo
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Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change
User Montooner
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Answer: Some signs in a chemical change are a change in color and the formation of bubbles.

Step-by-step explanation:

User Geowar
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