Chemistry P2 - 2023 Exam Revision

Chemistry P2 - 2023 Exam Revision Advantage and disadvantage of the Haber process. - correct answersAdvantage = 100% atom economy and more sustainable. Disadvantage = Expensive and a finite resource - from natural gas. Amino acid - correct answersTwo different functional groups in a molecule. Amino acids react by condensation polymerisation reaction to make polypeptides. Carbonates - correct answers- Add dilute HCl - CO2 is produced with salt + water - Bubble into limewater - if CO2 is presents it'll turn cloudy Equilibrium - correct answersThe rate of the forward reaction and reverse reaction have reached a net movement. Equilibrium - temperature. - correct answersreactants to product = exothermic products to reactants = endothermic Explain the collision theory. - correct answersReactions only take place between particles that collide with sufficient energy. Unsuccessful collisions need more activation energy to also form a new product. Particles are always moving. Flame emmission spectroscopy - correct answersExample of an instrumental method used to analyse metal ions in solutions. Flame test - correct answersA method of identifying a metal cation by the colour it produces in a non-luminous Bunsen flame. Flame test colours - correct answersLithium - crimson Calcium - orange-red Potassium - lilac Copper - green Sodium - yellow Formulae for Alkanes. - correct answersCnH2n+2 Formulae for alkenes. - correct answersCnH2