1.7.6
2021-04-27
Version 1.7.6
- Fix typos in some questions
1.7.5
2020-12-07
Version 1.7.5
- Fix some questions with wrong answers
1.7.4
2020-12-04
Version 1.7.4
- In Chapter 12 Patterns in the Chemical World section 12.3, The equation showing the amphoteric properties of aluminium oxide is not balanced, i.e. when aluminium oxide reacts with NaOH. There should also be a “3H2O” on the reactant side to make it balanced.
1.7.3
2020-11-18
Version 1.7.3
- Maintenance update
1.7.2
2020-08-08
Version 1.7.2
- Bug fixes
- Add interactive discussion for topic 1 to 3
1.7.1
2020-07-19
Version 1.7.1
- Bug fixes
1.7
2020-07-14
Version 1.7
- Added In-app Purchase for removing ads
1.6
2020-06-12
Version 1.6
- Added Multiple Choice Quiz for all compulsory chapters
1.5
2020-05-01
Version 1.5
- Added Multiple Choice Quiz for Chapter 5 Fossil Fuels and Carbon Compounds
1.4.1
2020-03-07
Version 1.4.1
- Fix typo
1.4.0
2020-02-26
Version 1.4.0
- Add Chinese translation to quiz.
1.3.0
2020-02-22
Version 1.3.0
- Add two very useful notes about the colour of ions and the colour of precipitates
- Added 6 types of questions for Topic: Metal
1.2.0
2020-01-28
Version 1.2.0
- Added 11 types of questions for Topic: Acid & Base, including calculations of Molarity and titrations.
1.1.2
2020-01-21
Version 1.1.2
- Fix typo
1.1.1
2019-12-31
Version 1.1.1
- Optimization
1.1.0
2019-12-22
Version 1.1.0
- Add all compulsory topics