2020

L" 2020 General Certificate (Adv. Level) Examination, 2020 Chemist hours 09 1 50 (l), (3), (4), (5) (x) 8.314J mor IVA = 6.022 X 1023 = 6.626 x J s c 3 x 10B m l. Il 3. M MC13 ... (P3) + 3HOCl t 02 - - 2020 | $ t www.alevelapi.com (iii) 1. PI aeoNaOH(aq) Si02 + 2NaOH ll. P3 Mg 3Mg + 2NH3 111. 3(S02 + 2H20 Cr2072- + 3S02 + Cr2072-+ ................
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