Помогите Пж ХІМІЯ CaO + HNO3 =
KOH + HCl =
Na2O + HSCu =
Zn + H2SO4 =
Ca + H2O =
Na2S + HBr =
KOH + CO2 =
NaOH + SO3 =
K2SO3 + CaCl2 =
Cr(NO3)2 + KOH =
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