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Unit 2: Molecular interactions and reactions Chemistry

In this unit, students develop their understanding of the physical and chemical properties of materials including gases, water and aqueous solutions, acids and bases. Students explore the characteristic properties of water that make it essential for physical, …

Unit 2 | Chemistry | Science | Senior secondary curriculum

ACSCH055

Observable properties, including vapour pressure, melting point, boiling point and solubility, can be explained by considering the nature and strength of intermolecular forces within a substance

ACSCH056

The shapes of molecules can be explained and predicted using three-dimensional representations of electrons as charge clouds and using valence shell electron pair repulsion (VSEPR) theory

ACSCH057

The polarity of molecules can be explained and predicted using knowledge of molecular shape, understanding of symmetry, and comparison of the electronegativity of elements

ACSCH058

The shape and polarity of molecules can be used to explain and predict the nature and strength of intermolecular forces, including dispersion forces, dipole-dipole forces and hydrogen bonding

ACSCH060

The behaviour of gases, including the qualitative relationships between pressure, temperature and volume, can be explained using kinetic theory

ACSCH062

The unique properties of water can be explained by its molecular shape and hydrogen bonding between molecules

ACSCH065

The solubility of substances in water, including ionic and molecular substances, can be explained by the intermolecular forces between species in the substances and water molecules, and is affected by changes in temperature

ACSCH070

Collision theory can be used to explain and predict the effect of concentration, temperature, pressure and surface area on the rate of chemical reactions by considering the structure of the reactants and the energy of particles

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