Chemistry 7405/1 June 2021

AQA A Level Chemistry (7405) Jun 2021

معلم موافق رایگان بودن است.

The exam evaluates inorganic and physical chemistry concepts, including thermodynamics, atomic structure, and equilibrium. Key topics include Born–Haber cycles, enthalpy calculations, lattice energy, and hydration. Atomic structure is assessed through isotope abundance, electron configurations, and Period 3 trends. Equilibrium sections analyze Kp expressions, SO3 production, and the effect of pressure on reaction yields. Additional areas cover transition metal catalysis, redox mechanisms, pH calculations, and lithium cell reactions. The paper emphasizes problem-solving, quantitative reasoning, and practical applications of theoretical chemistry in real-world contexts.