[IB Chemistry SL + HL Topic 1 Revision] Percentage Composition

If you're in your first year of the IB Diploma programme or are about to start, you can get ready for the next school year with our online courses in July! Register here: Mid-IB: https://www.siriusrevision.com/mid-ib/ Pre-IB: https://www.siriusrevision.com/pre-ib/