This week students learnt theÃ‚Â concept of salts in their theory classes and attended practicals on determination of cation and anion in unknown salts. They also understood the concept of using calcium carbonate for treating acidic soil. A unit test was also conducted on C3 and C9 chapters.
This week SL and HL students revisited the concept ofÃ‚Â chemical bonding, especially the concept of polarity in a molecule, shape of covalent molecules using VSEPR theory and determination of electronegativity values were dealt with. The students solved worksheet on the same with the misconception and correct concept behind each being highlighted and discussed. Overall, they found the sessions productive and gained lots of confidence in a rather difficult chapter. They also solved worksheets on spectrometry.