Aqa As Level Chemistry Paper 1 Actual Final Exams With Answers 2023!!

Give the general formulae for Kc [1] {Ans: }Describe the shape of a molecule with 3 bonding pairs and 2 lone pairs, and draw its structure, where both lone pairs are equatorial[3] {Ans: T-shaped Bond angle: 89°}Describe the melting and boiling point of an ionic compound. [3] {Ans: - Strong electrostatic attraction between ions. - This requires a lot of energy to overcome. - Giving ionic compounds high melting and boiling points.}Describe how permanent Dipole-Dipole forces form. [2] {Ans: Occur between any two molecules with dipole moments (not necessarily same molecule) The end of a molecule with a slight positive charge is attracted to the end of another molecule with a slight negative charge.}Give the meaning of "dynamic equilibrium" [2] {Ans: 1. The conentration of reactants and products remain constant 2. The rate of the forward reaction is equal to the rate of the reverse reaction.}What is an ionic bond? [1] {Ans: The strong electrostatic attraction between oppositely charged ions.}Define standard enthalpy of formation. [3] {Ans: - Enthalpy change when one mole of a substance is formed - From its constituent elements - Under standard conditions.}Define Relative Atomic Mass (Ar) [1] {Ans: