2Zn + O₂ -> 2ZnO
ZnO + 2HNO₃ -> Zn(NO₃)₂ + H₂O
Zn(NO₃)₂ + 2NaOH -> Zn(OH)₂↓ + 2NaNO₃
Zn(OH)₂ + 2NaOH -(t°)-> Na₂ZnO₂ + 2H₂O
Na₂ZnO₂ + 4HCl -> ZnCl₂ + 2NaCl + 2H₂O
CaCO3 + 2HNO3 = Ca(NO3)2 + CO2 + H2O
1)<span>Н2SO4+H2O не взаимодействуют</span>
<span>2Zn + O2->2ZnO </span><span>ZnO+H2 --->Zn+H2O </span><span>Zn +2HCl->ZnCl2+ H2 </span><span>ZnCl2 + 2NaOH->Zn(OH)2 </span>