October 2021 0 8 Report
Расставте коэффициентыв схемах,выберите химические уравнения процессов разложения Na+Cl2=NaCl
Na+H2O=NaOH+H2
Fe(OH)3=Fe2O3+H2O
CaCO3=CaO+CO2
C+H2=CH4
CH4=C2H2+H2
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