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04.12.2020 •
Chemistry
Which of the following is NOT a chemical change?
A. Tarnishing silver
B. Melting butter
C. Digesting food
D. Baking a cake
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Ответ:
Melting butter
Explanation:
You can reverse the change of butter back to its original state but you can never reverse the rest back to there original state
Ответ:
The atom will gain three valence electrons.
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