12. Students mixed two liquids in a beaker and listed their observations. O
The two liquids mix into a solution.
O
There is a change in volume.
Observations
Liquid 1 was colorless.
Liquid 2 was colorless.
The mixture of liquids 1 and 2 formed a colorless solution.
Small, solid particles formed and fell to the bottom of the beaker.
O
There is a change in shape.
0
O
The two liquids form a new substance.
Based on these observations, which statement contains the best evidence that a
chemical reaction occurred?
CLEAR ALL