Twig Learning Centre
Chemistry Tuition with Mr. Donnell Koh
Master A-Level Chemistry with ex-RJC lecturer Mr. Donnell Koh. Join engaging physical or livestream lessons focused on building strong foundations and exam success.
Lay a strong foundation in Science with engaging lessons that spark curiosity and build essential skills for future learning.
Master key concepts and problem-solving techniques to excel in O-Level Chemistry with a focus on clarity and exam readiness.
Navigate the rigorous IP and IB Chemistry syllabi with structured lessons tailored to deepen understanding and boost performance.
Achieve A-Level success with comprehensive lessons that break down complex topics and prepare students for demanding exams.
Excel in advanced Chemistry with specialized coaching for H3 and Olympiad levels, designed to challenge and inspire top-performing students.
$150.00
An electrochemical cell is a device that can generate electrical energy from the chemical reactions occurring in it, or use the electrical energy supplied to it to facilitate chemical reactions in it.
Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions. It is to be contrasted with chemical thermodynamics, which deals with the direction in which a reaction occurs but in itself tells nothing about its rate. Chemical kinetics includes investigations of how experimental conditions influence the speed of a chemical reaction and yield information about the reaction’s mechanism and transition states, as well as the construction of mathematical models that also can describe the characteristics of a chemical reaction.
Atomic structure refers to the structure of an atom comprising a nucleus (centre) in which the protons (positively charged) and neutrons (neutral) are present. The negatively charged particles called electrons revolve around the centre of the nucleus.
Solubility equilibrium is a type of dynamic equilibrium that exists when a chemical compound in the solid state is in chemical equilibrium with a solution of that compound. The solid may dissolve unchanged, with dissociation, or with chemical reaction with another constituent of the solution, such as acid or alkali. Each solubility equilibrium is characterized by a temperature-dependent solubility product which functions like an equilibrium constant. Solubility equilibria are important in pharmaceutical, environmental and many other scenarios.
Stoichiometry of redox reactions means calculations of the quantities of the oxidizing and reducing agents and their products in oxidation reduction reactions. Redox, on the other hand, is a type of chemical reaction in which the oxidation states of substrate change. Oxidation is the loss of electrons or an increase in the oxidation state, likewise, reduction is the gain of electrons or a decrease in the oxidation state.