Assess students' understanding of chemical equilibrium and Le Chatelier’s principle for reversible reactions: define dynamic equilibrium, interpret equilibrium position and the equilibrium constant (Kc), predict qualitative shifts due to changes in concentration, pressure (for gaseous systems), and temperature, and perform basic quantitative analysis using Kc and simple ICE table calculations. Include conceptual reasoning, short calculations, and application to a familiar system (e.g., Haber process).