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Natalka [10]
3 years ago
5

An experiment is performed in which a crystalline substance is added to a beaker filled with room-temperature water. The followi

ng observations were made:
1. The crystals dissolve.
2. A precipitate forms.
3. The bottom of the beaker feels warm to the touch.
4. Bubbles begin to form in the water.
Which observations are evidence that a chemical reaction took place?
Give a explanation.
Social Studies
1 answer:
Alika [10]3 years ago
8 0

Answer:

Explanation:

I think it is a precipitate because that is when two solutions react to make a solid. I am not sure of this answer, however, so please correct me if I am wrong. Everybody makes mistakes sometimes. Hope this helped!

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