Online Videos –

JC 2 Mid-Year Review

These videos of our regular classes are available to our regular class students.

Each lesson is broken up into a few videos. In the description below each video, you can look for the content or question that you would like to view or revisit.

JC2 Mid-Year Review (1) – Atomic Structure and Chemical Bonding
2020-J2A-20_JCT_Review_–_Atomic_Struct
Video 1-1
  • Physical property trends of Period 3 elements: atomic radius, ionic radius, 1st IE

2020-J2A-20_JCT_Review_–_Atomic_Struct
Video 1-2
  • Q1: 2nd IE trends

  • Q2: Successive ionisation energies

2020-J2A-20_JCT_Review_–_Atomic_Struct
Video 1-3
  • Dot-and-cross diagrams and VSEPR shapes

  • Q3: drawing dot-and-cross diagrams, and application of VSEPR theory

2020-J2A-20_JCT_Review_–_Atomic_Struct
Video 1-4
  • Q4, Q5: Shortcut method of drawing Lewis structures

2020-J2A-20_JCT_Review_–_Atomic_Struct
Video 1-7
  • Q9: explaining melting point trends

  • Q10: question applying van der Waals (VDW) forces

2020-J2A-20_JCT_Review_–_Atomic_Struct
Video 1-5
  • Q6: determining intermolecular forces

2020-J2A-20_JCT_Review_–_Atomic_Struct
Video 1-8
  • Q11: answering solubility questions

2020-J2A-20_JCT_Review_–_Atomic_Struct
Video 1-6
  • Q7, Q8: Analysis of, and strategy for answering chemical bonding questions

2020-J2A-20_JCT_Review_–_Atomic_Struct
Video 1-9
  • Physical property trends of Period 3 elements: melting points, and electrical conductivities

JC2 Mid-Year Review (2) – Chemical Energetics
2020-J2A-21_Mid-Year_Review_–_Chemical
Video 1-1
  • Overview

  • Experimental determination of enthalpy changes (Q1, Q2)

2020-J2A-21_Mid-Year_Review_–_Chemical
Video 1-2
  • Shortcut equations for calculating enthalpy changes (Q4, Q5)

2020-J2A-21_Mid-Year_Review_–_Chemical
Video 1-3
  • Bond energy method to calculate enthalpy changes (Q6, Q7)

  • Algebraic method to calculate enthalpy changes (Q8, Q9)

2020-J2A-21_Mid-Year_Review_–_Chemical
Video 1-4
  • Drawing energy cycles and Hess' Law (Q10, Q11)

2020-J2A-21_Mid-Year_Review_–_Chemical
Video 1-5
  • Calculating enthalpy change of atomisation from bond energies (Q12)

2020-J2A-21_Mid-Year_Review_–_Chemical
Video 1-6
  • Born-Haber cycles (Q13, Q14)

2020-J2A-21_Mid-Year_Review_–_Chemical
Video 1-7
  • Qualitative discussions of the feasibility of reactions based on Gibbs free energy (Q15, Q16, Q17)

JC2 Mid-Year Review (3) – Reaction Kinetics
2020-J2A-22 Mid-Year Review – Kinetics (
Video 1-1
  • Overview

  • Shapes of conc-time graphs and rate-conc graphs

  • Design of experiments to determine orders of reactions

2020-J2A-22 Mid-Year Review – Kinetics (
Video 1-2
  • Q1: Determining orders of reaction from conc-time graph; Drawing reaction profile diagrams

2020-J2A-22 Mid-Year Review – Kinetics (
Video 1-3
  • Q2: Determining orders of reaction from volume-time graph; Proposing mechanisms

2020-J2A-22 Mid-Year Review – Kinetics (
Video 1-4
  • Q3: Determining orders of reaction from product-time graph

2020-J2A-22 Mid-Year Review – Kinetics (
Video 1-5
  • Q4: Determining order of reaction of reactant in excess

2020-J2A-22 Mid-Year Review – Kinetics (
Video 1-6
  • Q5: Initial rates method

  • Q6: Iodine clock experiment with initial rates table of volumes

2020-J2A-22 Mid-Year Review – Kinetics (
Video 1-7
  • Q7: Rates-conc graphs; Determination of activation energy.

JC2 Mid-Year Review (4) – Acid-Base Equilibria
J2A-23 Mid-Year Review – Acid-Base Equil
Video 1-1
  • Overview

  • Q1: basic pH calculations

J2A-23 Mid-Year Review – Acid-Base Equil
Video 1-4
  • Q6: titration graph and pH calculations

  • Q7: titration graph and indicators

J2A-23 Mid-Year Review – Acid-Base Equil
Video 1-2
  • Q2, Q3: buffer solutions

J2A-23 Mid-Year Review – Acid-Base Equil
Video 1-3
  • Q4: buffer solutions

  • Q5: blood buffer system

J2A-23 Mid-Year Review – Acid-Base Equil
Video 1-5
  • Q8: pH calculations and sketching a titration graph

J2A-23 Mid-Year Review – Acid-Base Equil
Video 1-6
  • Q9: polyprotic titration graph and pH calculations

J2A-23 Mid-Year Review – Acid-Base Equil
Video 1-7
  • Q10: Shortcut method for sketching polyprotic titration graph