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Webpoint and chemical reactivity of group 1 elements with wa ter. 2A.D1 . Explain the trends in chemical properties of group 1 and 7 elements in terms of electronic structure. For . 2A.D1, learners should . explain. the trend in chemical properties that they have described for 2A.M1 using their understanding of electronic structure. WebAug 31, 2024 · Compared to compound 1, it can be clearly seen from the 1 H-NMR spectra of chitosan derivatives 2a and 2b in Figure 2 that the characteristic resonance at 4.4 ppm for –COC H 2 Cl weakens greatly while new signals appear at 1.2-2.7 ppm in compound 2a, which are assigned to the protons of methyl and methylene moieties, and the … romance in misfit of demon king academy