While creating a piece of artwork, lupita becomes curious about the ink she using to create her art. she wonders if the ink is pure substance or a mixture. the ink separates when a chromatography experiment is performed on it , leaving multiple marks of different colors along the chromatography paper. when the ink is left out for twenty four hours, the ink settles into individual components. using her observations of the properties of the ink, the student can classify it as a

mixture

Explanation:

Chromatography separates components of a material based on their difference in polarity. Since the chromatography experiment resulted in more than one mark appearing, there must be more than one component in the material.

Upon standing for 24 hours, the liquid ink separates into its different components based on their differing properties, such as density or solubility. Since a pure substance is homogeneous and has the same properties throughout, the ink cannot be a pure substance.

10 years is the answer