Chemistry /YEAR 11 · UNITS 1 & 2

Build the explanation.

Learn with an interactive model, work through an example, or go straight to practice.

Start learning Review practice

– / 18 lessons explored54 original questions

UNIT 1

Chemical fundamentals — structure, properties and reactions

01Properties and structure of atomsSame element, different mass.0/3 practice questions passed Practise

02Properties and structure of atomsAn element’s light signature.0/3 practice questions passed Practise

03Properties and structure of atomsElectron structure explains the pattern.0/3 practice questions passed Practise

04Properties and structure of atomsMake the charges balance.0/3 practice questions passed Practise

05Properties and structure of materialsStructure explains what a material does.0/3 practice questions passed Practise

06Chemical reactions — reactants, products and energy changeCount particles by weighing.0/3 practice questions passed Practise

07Chemical reactions — reactants, products and energy changeThe coefficients set the recipe.0/3 practice questions passed Practise

08Chemical reactions — reactants, products and energy changeRead reaction energy from warming water.0/3 practice questions passed Practise

09Chemical reactions — reactants, products and energy changeBreaking bonds costs energy.0/3 practice questions passed Practise

UNIT 2

Molecular interactions and reactions

01Intermolecular forces and gasesA bond dipole is only part of the story.0/3 practice questions passed Practise

02Intermolecular forces and gasesSeparate molecules without breaking them.0/3 practice questions passed Practise

03Intermolecular forces and gasesDifferent attractions, different journeys.0/3 practice questions passed Practise

04Intermolecular forces and gasesPressure comes from collisions.0/3 practice questions passed Practise

05Aqueous solutions and acidityConcentration counts amount per volume.0/3 practice questions passed Practise

06Aqueous solutions and acidityWhen dissolved ions form a solid.0/3 practice questions passed Practise

07Aqueous solutions and acidityStrong and concentrated are different.0/3 practice questions passed Practise

08Aqueous solutions and acidityUse the products to identify the reaction.0/3 practice questions passed Practise

09Rates of chemical reactionsMore successful collisions per second.0/3 practice questions passed Practise

QCAA Chemistry 2025 v1.3 ↗ · Original explanations, models and questions. Follow your teacher’s program for practical and assessment requirements.

Loading progress…