August 2021 1 19 Report
определите валентность и степень окисления азота в веществе (nh4)2co3:a) lll. N-1. b)ll. N+3 C)v. N-3 d) l. N+4 F)lll. N0 G) l N+1 H)lv N +5 K) ll N+2
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