A student compiled data in a table to compare pure substances and mixtures.

Pure Substances

Mixtures

elements and compounds

contains two or more substances

. cannot be separated using physical means

are chemically combined

.

Which statement BEST describes the mistake the student made on their table?

( 1 point)

Mixtures contain at least three or more substances.

Elements and compounds are considered mixtures.

Mixtures are substances that are not chemically combined.

Pure substances can be separated using physical means.