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reticentrobbie
24.06.2019 •
Chemistry
Describe the ways you can know that a chemical reaction has occurred. enter your answer in the space provided.
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Ответ:
A chemical reaction is one in which rearrangement of atoms take place. A chemical reaction is characterized by following changes:
1) Absorption or release of heat. Example: Combustion reaction
2) formation of gas bubbles
3) Formation of precipitate
4) Change in color
Colorless
changes to white ![MgO](/tpl/images/0013/1478/5d4bd.png)
Ответ:
Hope I helped:D