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Sagot :
Answer:
During a chemical change, the composition of matter always changes. Four possible clues to chemical change include a transfer of energy, a change in color, the production of a gas, or the formation of a precipitate.
Explanation:
The signs of a chemical change include color change, the production of an odor, a change in temperature, the formation of bubbles, and the formation of a precipitate. Hope this helps! ;)
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