The student demonstrated a strong understanding of relevant chemical principles and applied them effectively in their research, particularly in reaction kinetics and ligand substitution reactions. The essay provided a clear explanation of the chosen techniques and apparatus, with appropriate source material to support the investigation. However, the student failed to incorporate source material effectively in the main body of the essay and lacked proper citations for the methodologies described. At the same time, the student used credible scientific sources and maintained an academic tone throughout; however, inconsistencies in the use of balanced chemical equations and SI units that needed to be addressed. Overall, the student's work demonstrated a solid grasp of the subject matter, but some areas needed improvement for greater clarity and adherence to scientific standards.