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.
In a chemical reaction, chemical equilibrium is the state in which both the reactants and products are present in concentrations which have no further tendency to change with time, so that there is no observable change in the properties of the system. This state results when the forward reaction proceeds at the same rate as the reverse reaction.
The periodic table, also known as the periodic table of the (chemical) elements, is a rows and columns arrangement of the chemical elements. It is widely used in chemistry, physics, and other sciences, and is generally seen as an icon of chemistry. It is a graphic formulation of the periodic law, which states that the properties of the chemical elements exhibit an approximate periodic dependence on their atomic numbers.
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.
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.