Chemistry Unit 3 and 4


In Unit 3 students compare and evaluate different chemical energy resources, including fossil fuels, biofuels, galvanic cells and fuel cells. Students will also learn how to perform stoichiometric calculations relating to gases and the energy produced during the combustion of fuels. Students will analyse the manufacturing processes with reference to factors that influence their reaction rates and the equilibrium law and Le Chatelier’s principle to different reaction systems.

In Unit 4 students will study instrumental analyses of organic compounds to confirm or deduce organic structures, and perform volumetric analyses to determine the concentrations of organic chemicals in mixtures. Students investigate organic reaction pathways and the role of organic chemicals. Students will learn chemical structure and hydrolytic reactions for food molecules and will explore the roles of enzymes and coenzymes in facilitating chemical reactions. Students use calorimeter as an investigative tool to determine the energy released in the combustion of foods.

Both Units involve the use of the language and symbols of chemistry, chemical formulas and equations, the design and performance of experiments / practical investigations, as well as collection and evaluation of experimental data.

Who is it for?

Chemistry is fun – and ideal for every student who loves Science. There are lots of interesting experiments you can do using common everyday materials.

Basic mathematical calculations are absolutely necessary to explore important concepts in Chemistry. Without some basic mathematics skills, these calculations, and therefore Chemistry itself, will be difficult.

What do you do?

Activities include:

  • completing five school-based assessment tasks including design and undertaking a practical investigation and development of a structured scientific poster
  • conducting investigations / practical activities that include collecting, processing, recording and analysing qualitative and quantitative data; drawing conclusions consistent with the question under investigation and the information collected; evaluating procedures and reliability of data.
  • attending compulsory practical activities, revision seminar and regular online lessons
  • keeping logbook entries, online interactives, class forum and online lesson, weekly quizzes and written exercises.

What skills do you need?

You must complete either Chemistry Unit 1 or Unit 2 as prerequisite for Year 12 Chemistry. You also need to have some basic mathematical skills.

What skills do you develop?

By taking Chemistry you develop some very useful skills that can be applied well outside of the subject discipline, including:

  • problem solving
  • numeracy
  • practical skills
  • developing a broad scientific background.




You must have access to the internet in order to access this course. All weekly work will be completed and submitted online.

Students choosing this course must have access to a scientific calculator, access to a computer and the internet is required to complete the weekly work in this subject.

We also recommend students attempt the pretest before enrolling into this subject.

Students require access to laboratory facilities to complete this Unit satisfactorily. We are conducting all practical activities at DECV. If you are unable to use a laboratory at your school or workplace you will need to attend the DECV laboratory in Thornbury on one designated day in each of term.

The required minimum study time is 7-8 hours per week.

The required textbook is Heinemann Chemistry 2 Student Book + Pearson eBook 3.0, fifth edition, Hogendoorn, Bob et al, Pearson Australia

Things to think about

Before attempting this study, students should have some knowledge of how to design, conduct and report on practical investigations including the ability to design hypotheses and analyse data.

Things you can do now

To help you understand what is expected in Year 12 Chemistry, you can attempt our pretest:

  • do the Chemistry Pretest (You can refer to chemistry notes and texts, but the test should not take more than about an hour.)
  • time how long it takes
  • correct your answers and work out your score (Pretest Answers)
  • see what our recommendation is.

To refresh your knowledge of Year 11, you can attempt on the following activities during the summer holiday:

Go to the VCAA website for more information about this subject.





Things to have a look at

Chemistry Lab Day

Chemistry lab day in 2016 at DECV.

Mahjong Chem

Free game to practice your chemistry knowledge. It is available for your Apple or Android device. Download from iTunes or Google Play.

General Chemistry

Refresh your knowledge of chemistry in Year 11.