Chemical Change

Chemical Change - Science Dimensions 3 - Chapter 2

Knowledge & skills

• Relate the structure of the atom to the formation of ions and molecules.
• Relate strength, melting point and boiling point to the forces between particles in a substance.
• Describe metallic, covalent and ionic bonding and distinguish between metallic, covalent and ionic substances according to their properties.
• Write simple chemical formulae for ionic compounds when given electrovalencies.
• Know the structure of simple covalent compounds such as H₂,O₂, CO₂, H₂O, NH₃ and CH₄.
• Observe and explain the reactivity of different metals.
• Know what is meant by the terms oxidation and reduction, giving an example.
• Account for the electrical conductivity of a material by the presence of charged particles that are free to move.

Experiments Burning magnesium (Prac book) Electrical conductivity of substances (Prac book) metal reactivity(Prac book)	Worksheets Semester 2 worksheet booklet Worksheet answers
Cyberlab Dissolving ionic salts Electron flow	Class videos Atom Bond Structure of the atom
Extra resources Naming and writing chemical compounds Balancing equations Answers to chemistry questions List of ions and charges Periodic table Covalent bonding	Links ChemTutor