Evidence of Chemical Reactions (8.5E) A group of students combined different substances together during several
experiments. Their observations are recorded on the chart below.
Experiment
Observations
A blue liquid and a yellow liquid were
1
mixed and it turned green.
A solid substance dissolved in a clear
2.
liquid.
3
Two room temperature liquids were mixed
and the temperature increased.
Two different liquids were mixed and
4
began to separate and layer in a beaker.
In which experiment did a chemical reaction likely occur?
A 1
B 2
с 3
D 4
Kestor Science and the Science Duo