Singapore · MOE Syllabus Outcomes
Secondary 3 Chemistry
This course explores the fundamental principles governing the composition and behavior of matter. Students investigate how atomic structure influences chemical bonding and reactions while developing mastery in quantitative calculations and chemical thermodynamics.
Atomic Structure and the Particle Model
Students explore the subatomic world to understand how the arrangement of protons, neutrons, and electrons defines an element's identity and properties.
An investigation into the kinetic particle theory and how energy changes affect the physical state of substances.
Examining the evolution of the atomic model and the significance of subatomic particles and isotopic abundance.
Understanding how the arrangement of electrons in shells dictates the chemical behavior of elements.
Chemical Bonding and Structure
This unit examines how atoms interact to form stable structures and how these microscopic bonds manifest as macroscopic properties.
Analyzing the electrostatic attraction between ions and the resulting properties of giant ionic lattices.
Distinguishing between simple molecular structures and giant covalent networks like diamond and graphite.
Exploring the sea of delocalized electrons and its impact on the physical characteristics of metals.
Stoichiometry and the Mole Concept
A quantitative look at chemistry focusing on the mole concept, empirical formulas, and reaction yields.
Bridging the gap between the microscopic number of atoms and macroscopic measurable mass.
Determining the simplest and actual ratios of elements in a chemical compound.
Using balanced equations to predict the outcomes of chemical reactions and identify limiting reagents.
Chemical Energetics and Thermodynamics
Students investigate energy changes during reactions and the fundamental laws governing heat transfer.
Classifying reactions based on energy exchange with the surroundings.
Calculating the net enthalpy change based on the energy required to break and form bonds.
Exploring the energy barrier of reactions and how catalysts provide alternative pathways.
Patterns in the Periodic Table
Analyzing trends across periods and down groups to predict the behavior of elements.
Identifying repeating patterns in physical and chemical properties across Period 3.
Comparing the reactivity and properties of Alkali Metals and Halogens.
Examining the unique characteristics of d-block elements and the stability of Group 18.
Chemical Reactions and Solutions
An exploration of acids, bases, salts, and the qualitative analysis of aqueous solutions.
Investigating the properties of proton donors and acceptors in aqueous environments.
Understanding the methods of salt preparation based on solubility rules.
Using chemical tests to identify unknown cations, anions, and gases.