расставьте коэфициэнты пж,даю 25 баллов,
NH3 + O2 = N2 + H20
Fe 2O3 + C = Fe + CO
Zn Cl2 + Na OH = Zn (OH)2+Na Cl
Al (OH)3 + H3 PO4 = Al PO4+H2O
SO2 + O2 = SO3
C3 H8 + O2 = CO2 + H2O
C8 H18 + O2 = CO2 = CO2 + H2O
C7 H16 + O2 + H2O
Буду очень благодарен))
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