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Cel mai inteligent răspuns!
2014-04-24T17:46:39+03:00
1) Fe + S = FeS
2)2Ca+O2=2CaO
3)2H2+O2=2H2O
4)AlCl3+3NaOH=Al(OH)3+3NaCl
5)2K + 2H2O = 2KOH + H2↑
6)3Fe+2O2=Fe3O4

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