13. Dana is trying to determine if an unknown sample is a pure substance or not. The sample has a cloudy white color, and it seems evenly mixed throughout. The sample is a
liquid with high viscosity. Dana tried separating the sample with a magnet with no
effect. When Dana filtered the sample, larger granules of the sample were left behind in the
filter.
What evidence allowed Dana to conclude that the sample is not a pure substance?
A. It is a cloudy white.
B. The liquid has high viscosity.
C. Dana tried separating the sample with a magnet with no effect.
D. Dana filtered the sample and larger granules of the sample were left behind.