Question 1
The energy profile diagram is for a reaction that, once started at room temperature, goes essentially to completion. Which statement best explains why the reverse reaction does not occur to any noticeable extent?
WACE Chemistry: the course and the exam
Units 3 and 4 cover equilibrium, acids and bases, redox, organic materials and chemical synthesis. The ATAR examination is one paper of ten minutes reading and three hours working, in three sections, with a data booklet provided.
26 weeks, 104 hours in all
Start with Topic 2
Acids and bases: 23 of your hours. It is 6 of the 25 questions on our timed multiple-choice checks, 24%.
| Topic | Your hours | Share of the checks |
|---|---|---|
| Topic 2: Acids and bases | 23 | 24% |
| Topic 1: Chemical equilibrium systems | 19.2 | 20% |
| Topic 3: Oxidation and reduction | 19.2 | 20% |
| Topic 4: Properties and structure of organic materials | 19.2 | 20% |
| Topic 5: Chemical synthesis | 15.4 | 16% |
Week by week
- Week 1Topic 2: Acids and bases
- Week 2Topic 2: Acids and bases
- Week 3Topic 2: Acids and bases
- Week 4Topic 2: Acids and bases
- Week 5Topic 2: Acids and bases
- Week 6Topic 2: Acids and bases, Topic 1: Chemical equilibrium systems
- Week 7Topic 1: Chemical equilibrium systems
- Week 8Topic 1: Chemical equilibrium systems
- Week 9Topic 1: Chemical equilibrium systems
- Week 10Topic 1: Chemical equilibrium systems
- Week 11Topic 1: Chemical equilibrium systems, Topic 3: Oxidation and reduction
- Week 12Topic 3: Oxidation and reduction
- Week 13Topic 3: Oxidation and reduction
- Week 14Topic 3: Oxidation and reduction
- Week 15Topic 3: Oxidation and reduction
- Week 16Topic 3: Oxidation and reduction, Topic 4: Properties and structure of organic materials
- Week 17Topic 4: Properties and structure of organic materials
- Week 18Topic 4: Properties and structure of organic materials
- Week 19Topic 4: Properties and structure of organic materials
- Week 20Topic 4: Properties and structure of organic materials
- Week 21Topic 4: Properties and structure of organic materials, Topic 5: Chemical synthesis
- Week 22Topic 5: Chemical synthesis
- Week 23Topic 5: Chemical synthesis
- Week 24Topic 5: Chemical synthesis
- Week 25A timed multiple-choice check and a set of short and extended answer questions, then review every lost mark
- Week 26A timed multiple-choice check and a set of short and extended answer questions, then review every lost mark
| The examination | One paper on Units 3 and 4: ten minutes reading, three hours working |
|---|---|
| Section One | 25 multiple-choice questions, 25%, about 50 minutes |
| Section Two | 8 to 12 short answer questions, 35%, about 60 minutes |
| Section Three | 5 to 7 extended answer questions, 40%, about 70 minutes |
| Provided | A Chemistry data booklet; up to three non-programmable calculators allowed |
The five topics
Unit 3 covers chemical equilibrium systems, acids and bases, and oxidation and reduction. Unit 4 covers the properties and structure of organic materials and chemical synthesis. The course takes these five headings as its topics, and Units 1 and 2 are assumed knowledge.
The ATAR examination
- Section One: 25 multiple-choice questions, worth 25% of the examination, with about 50 minutes suggested.
- Section Two: 8 to 12 short answer questions, worth 35%, with about 60 minutes suggested. Answers can be equations, descriptions, short calculations, diagrams, tables, graphs or flow charts.
- Section Three: 5 to 7 extended answer questions, worth 40%, with about 70 minutes suggested. Each has parts built on a scenario, such as a passage or a set of experimental data.
Try 2 questions
Question 2
Four standard reduction potentials are Ag⁺/Ag +0.80 V, Cu²⁺/Cu +0.34 V, Fe²⁺/Fe −0.44 V and Zn²⁺/Zn −0.76 V. Which species is the strongest oxidising agent?
Next step
Questions people ask
What is in the ATAR examination?
A representative sample of Units 3 and 4: chemical equilibrium systems, acids and bases, oxidation and reduction, the properties and structure of organic materials, and chemical synthesis.
Are Units 1 and 2 in the exam?
The exam is set on Units 3 and 4, and Year 11 content is assumed knowledge, so moles, stoichiometry, gas volumes and intermolecular forces appear inside questions on Units 3 and 4.
Can I use a calculator?
Yes, up to three calculators that cannot store programmes or text, and the data booklet is provided.