15.21—Chromatography separates components of a mixture using a mobile phase and a stationary phase

Know that chromatography separates components of a mixture using a mobile phase and a stationary phase.

Use —chromatography separates components of a mixture using a mobile phase and a stationary phase to connect the rule to the data and decision in the question.

This matters because —chromatography separates components of a mixture using a mobile phase and a stationary phase determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —chromatography separates components of a mixture using a mobile phase and a stationary phase to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —Chromatography separates components of a mixture using a mobile phase and a stationary phase is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.