Question

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

Answer 1

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

Answer 2

I'm sorry, but the chemical equations you provided are incorrect or incomplete. Let me help you correct them:

1. Fe(OH)2 + HCl → FeCl2 + H2O Iron(II) hydroxide reacts with hydrochloric acid to form iron(II) chloride and water.

2. Fe(OH)2 + NaOH → Fe(OH)2 + NaOH This equation is already balanced and shows no chemical reaction occurring.

3. N2O5 + NaOH → NaNO3 + HNO3 Dinitrogen pentoxide reacts with sodium hydroxide to form sodium nitrate and nitric acid.

4. H3BO3 + NaOH → Na[B(OH)4] Boric acid reacts with sodium hydroxide to form sodium tetrahydroxyborate.

5. Cu(NO3)2 + 2NaOH → Cu(OH)2 + 2NaNO3 Copper(II) nitrate reacts with sodium hydroxide to form copper(II) hydroxide and sodium nitrate.

Please note that chemical equations must be balanced to accurately represent the reactants and products involved in a chemical reaction. If you need further assistance, feel free to ask!