16.4—The features of the standard hydrogen electrode and understand why a reference electrode is necessary

Know the features of the standard hydrogen electrode and understand why a reference electrode is necessary.

Use —the features of the standard hydrogen electrode and understand why a reference electrode is necessary to connect the rule to the data and decision in the question.

This matters because —the features of the standard hydrogen electrode and understand why a reference electrode is necessary determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —the features of the standard hydrogen electrode and understand why a reference electrode is necessary to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —The features of the standard hydrogen electrode and understand why a reference electrode is necessary is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.