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Latest updates

MC test: Superconducting metals & X-ray crystallography6 August 2018

Use the following 'quiz' to test your knowledge and understanding of this sub-topic. As this relates to a sub-topic on the options you may need access to the IB data booklet.If you get an answer wrong,... more

Superconducting metals & X-ray crystallography answers30 July 2018

Answers to Superconducting metals & X-ray crystallography questions.1. (a) i. The number of closest neighbouring atoms surrounding each atom.ii. The number of coordinate bonds formed by the ligand(s)... more

MC test: Environmental impact - plastics24 July 2018

If you get an answer wrong, read through the explanation carefully to learn from your mistakes. more

MC test: Nanotechnology5 July 2018

If you get an answer wrong, read through the explanation carefully to learn from your mistakes. more

AI deduces the periodic table26 June 2018

There is an interesting report from Professor Shoucheng Zhang, a professor of physics at Stanford University which claims that he has used artificial intelligence to recreate the periodic table. more

4 & 14. Chemical bonding & structure (1)31 May 2018

For each question choose the answer you consider to be the best.1. What are the correct formulas for magnesium sulfate and aluminium phosphide?A. Mg(SO4)2 and AlPO4B. MgSO4 and AlPO4 more

MC test: Catalysts31 May 2018

Use the following 'quiz' to test your knowledge and understanding of this sub-topic. As this relates to a sub-topic on the options you may need access to the IB data booklet.If you get an answer wrong,... more

MC test: Polymers23 May 2018

Use the following 'quiz' to test your knowledge and understanding of this sub-topic. As this relates to a sub-topic on the options you may need access to the IB data booklet.If you get an answer wrong,... more

MC test: Electrophilic addition & electrophilic substitution reactions4 May 2018

Use the following 'quiz' to test your knowledge and understanding of this sub-topic. You will need access to a periodic table (Section 6 of the IB data booklet). Note that this quiz covers both electrophilic... more

MC test: Liquid crystals26 April 2018

Use the following 'quiz' to test your knowledge and understanding of this sub-topic. As this relates to a sub-topic on the options you may need access to the IB data booklet.If you get an answer wrong,... more