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11 Oct 2026
The 2026 Nobel Prize for Chemistry
The Nobel prize for Chemistry this year celebrates the pioneering work of Henri Kagan and Kenso Soai on homochirality - the synthesis of just the required enantiomer of chiral compounds and not the mirror...
11 Sep 2026
The importance of using clear English in IB chemistry
Why using clear English is important when communicating in chemistry. This blog gives examples of two past IB questions where the language used to phrase the questions can lead to different interpretations...
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Beijing Dulwich International School
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Hello, In this MCQ, is it A or D? Consider the following system at equilibrium: ...
R2.3 (AHL) Reaction quotient & equilibrium law -
UPDATE! This is now possible! See the page "More than one teacher" as to how to...
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Thank you very much.
R2.2 Rate of reaction & collision theory
Paul
Site authorHello ManiYour images have not uploaded. You'll need to write the question, or if it's from a May paper, give us the TZ and question number.
R2.3 (AHL) Reaction quotient & equilibrium law