November 2021 0 16 Report
Укажи уравнения реакций замещения. Может быть несколько вариантов ответа.
HCl+Zn=ZnCl2+H2↑
2Al+6H2O=3H2+2Al(OH)3
AgNO3+HCl=AgCl↓+HNO3
4NO2+O2+2H2O=4HNO3
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