Chemistry, 04.04.2020 12:22, TheOriginalMeyah
An experiment is performed in which a crystalline substance is added to a beaker filled with room-temperature water. The following observations were made: 1. The crystals dissolve. 2. A precipitate forms. 3. The bottom of the breaker feels warm to the touch. 4. Bubbles begin to form in the water. Which observations are evidence that a chemical reaction took place?
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An experiment is performed in which a crystalline substance is added to a beaker filled with room-te...
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