Online Videos –
JC 2 Prelims 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 Prelims Review – 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 Prelims Review – The Periodic Table
J2A-30 Prelims Review - The Periodic Tab
Video 1-1
  • Overview of the periodic trends of Period 3 oxides and chlorides

  • Reactions of the Period 3 oxides with water (Q1)

J2A-30 Prelims Review - The Periodic Tab
Video 1-2
  • Acid-base reactions of the Period 3 oxides and hydroxides (Q2)

J2A-30 Prelims Review - The Periodic Tab
Video 1-3
  • Reactions of the Period 3 chlorides with water (Q3)

J2A-30 Prelims Review - The Periodic Tab
Video 1-4
  • Periodic trends of Period 3 hydroxides (Q4)

  • Group trends of the Group 14 dioxides (Q5)

J2A-30 Prelims Review - The Periodic Tab
Video 1-5
  • Group 2 reducing agents (Q6)

  • Group 17 oxidising agents (Q7)

J2A-30 Prelims Review - The Periodic Tab
Video 1-6
  • Thermal stability of Group 2 carbonates (Q8)

  • Thermal stability of Group 17 hydrides (Q9)

JC2 Prelims Review – 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.

Prelims Review – Chemical Equilibria
J2A-33 Prelims Review - Chemical Equilib
Video 1-1
  • Q1: Kc and ICE in mol and mol dm^-3

J2A-33 Prelims Review - Chemical Equilib
Video 1-4
  • Q4: Kp and ICE table in mol

J2A-33 Prelims Review - Chemical Equilib
Video 1-2
  • Q2: Kp and ICE table in atm

J2A-33 Prelims Review - Chemical Equilib
Video 1-3
  • Q3: Kp and Le Chatelier's Principle

J2A-33 Prelims Review - Chemical Equilib
Video 1-5
  • Q5: Heterogeneous systems and applying LCP

Prelims Review – Solubility Equilibria
J2A-24_Mid-Year_Review_–_Solubility_Eq
Video 1-1
  • Overview

  • Calculating solubility and solubility products (Q1, Q2, Q3, Q4)

J2A-24_Mid-Year_Review_–_Solubility_Eq
Video 1-2
  • Ionic products and precipitation (Q5, Q6)

J2A-24_Mid-Year_Review_–_Solubility_Eq
Video 1-3
  • Common ion effect on solubility (Q7, Q8, Q9)

J2A-24_Mid-Year_Review_–_Solubility_Eq
Video 1-4
  • Complex ion effect on solubility (Q10)

J2A-24_Mid-Year_Review_–_Solubility_Eq
Video 1-5
  • Separation of ions utilising solubilities (Q11, Q12)

Prelims Review – 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

Prelims Review – Electrochemistry
J2A-35 Prelims Review - Electrochemistry
Video 1-1
  • Q1: Electrochemical cells

J2A-35 Prelims Review - Electrochemistry
Video 1-4
  • Q5, Q6: Electrolytic cells

J2A-35 Prelims Review - Electrochemistry
Video 1-2
  • Q2: Cell diagrams with SHE, and effects of non-standard conditions

  • Q3: Electrochemical cell practice

J2A-35 Prelims Review - Electrochemistry
Video 1-3
  • Q4: Ecell and Feasibility of reactions

J2A-35 Prelims Review - Electrochemistry
Video 1-5
  • Q7: Electrolytic cell practice