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zmey [24]
3 years ago
10

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

ng observations are made:
I. The crystals dissolve
II. A precipitate is formed.
III. The bottom of the beaker feels warm to the touch.
IV. Bubbles begin forming within the water. All of the observations are evidence of a chemical change EXCEPT -
A.observation I
B.observation II.
C.observation III.
D.observation IV.
Chemistry
1 answer:
Dafna1 [17]3 years ago
3 0
A i think....don't take my word for it ompletely
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