Fe(OH)2 + HCl =
Fe(OH)2 =
NaOH + N2O5 =
NaOH + H3BO3 =
NaOH + Cu(NO3)2 =
Срочно!!!!!!!!!! ​

Fe(OH)₂ + 2HCl =  FeCl₂ + 2H₂O

Fe(OH)₂ =  FeO + H₂O

2NaOH + N₂O₅ =  2NaNO₃ + H₂O

3NaOH + H₃BO₃ =  Na₃BO₃ + 3H₂O

2NaOH + Cu(NO₃)₂ = Cu(OH)₂↓ + 2NaNO₃