The picture shows an experiment in which a student mixed two clear liquids together.
The student can conclude that a chemical change occurred because
A.
the temperature of the substances was constant throughout the experiment.
B.
the total mass of the substances was constant throughout the experiment.
C.
some of the mixture formed a material with different properties.
D.
some of the mixture changed into a different physical state.
C. some of the mixture formed a material with different properties.
When two clear liquids are mixed together and form a substance with different properties, it is a clear indicator that a chemical change has occurred. This is because the chemical structure of the substances has changed, leading to the formation of a new substance with distinct properties.