Докончить уравнения химических реакции
Н2+О2=?
Zn + HCl=?
P + O2 =?
Na + H2O=?
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Zn+2HCl=ZnCl2+H2
4P+5O2=2P2O5
2Na+2H2O=2NaOH+H2
2)Zn+2HCl=ZnCl2+H2
3)5P+O2=P2O5
4)2Na+2H2O=NaOH+H2