October 2021 0 4 Report
ПОЖАЛУЙСТА, РЕШИТЕ! CaO+SO3=
NaOH + ... = NaCl+...
H3PO4 + ZnO=
N2O5 + ... = HNO3
Zn + HBr =
Cu + HCl =
KOH+ Cu(NO3)2 =
Ag + H2SO4 =
H2SO4 + BaCl2 =
Na2O + H2O =
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