September 2021 0 7 Report
Срочно!!!! СРОЧНО!!! Срочно!!! Расставьте коэффициенты в уравнениях реакций:
Al + S = Al2 S3
Ba + O2 = BaO
Al + HCl = AlCl3 + H2
Fe2O3 + HCl = FeCl3 + H2O
MnO2 + Al = Al2O3 + Mn
P + S = P2S5
Mg + O2 = MgO
Ca + HCl = CaCl2 + H2
H2S + O2 = S + H2O
Fe(OH)3 +H2SO4 = Fe2(SO4)3 + H2O
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