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b) 2Fe + O₂ - > 2FeO
c) S + 2Na -> Na₂S
Pozdrawiam,
matteushq;)
chlor+chrom --->chlorek chromu(III)
3Cl₂ + 2Cr ---> 2CrCl₃
żelazo+tlen--->tlenek żelaza(II)
2Fe + O₂ ---> 2FeO
siarka+sód--->siarczek sodu
S + 2Na ---> Na₂S