Question

CaO+HCl= Na2O+HNO3=LiOH+HCI=Fe2(SO4)3+NaOH=Ba(NO3)2+HCI=K2O+H2O=Fe(OH)3+H2SO4 =Mg+HCI=​

Answer 1

Ответ:

CaO+2HCl=CaCl2+H2(стрелка вверх, газ)

Na2O+2HNO3=2NaNO3+H2O

LiOH+HCl=LiCl+H2O

Fe2(SO4)3+6NaOH=3Na2SO4+2Fe(OH)3(стрелка вниз, осадок)

Ba(NO3)2+2HCl=(перечеркивай =, реакция не идет, нет осадка, газа или воды)

K2O+H2O=2KOH

2Fe(OH)3+3H2SO4=Fe2(SO4)3+ 6H2O

Mg+2HCl=MgCl2+H2(стрелка вверх)

Answer 2

I see you've listed several chemical reactions. Let's balance each of them:

1. CaO + HCl → CaCl2 + H2O (Balanced: 1 Ca, 2 Cl, 2 H, 1 O)

2. Na2O + HNO3 → 2 NaNO3 + H2O (Balanced: 2 Na, 3 O, 2 H, 2 N)

3. LiOH + HCl → LiCl + H2O (Balanced: 1 Li, 1 Cl, 2 H, 1 O)

4. Fe2(SO4)3 + 6 NaOH → 3 Na2SO4 + 2 Fe(OH)3 (Balanced: 2 Fe, 3 Na, 3 S, 12 O, 6 H)

5. Ba(NO3)2 + 2 HCl → BaCl2 + 2 HNO3 (Balanced: 1 Ba, 2 Cl, 2 H, 2 N, 6 O)

6. K2O + H2O → 2 KOH (Balanced: 2 K, 2 O, 2 H)

7. Fe(OH)3 + 3 H2SO4 → 3 Fe(SO4)3 + 3 H2O (Balanced: 3 Fe, 3 S, 12 O, 12 H)

8. Mg + 2 HCl → MgCl2 + H2 (Balanced: 1 Mg, 2 Cl, 2 H)

These equations should now be balanced, indicating the number of each type of atom on both sides of the reaction arrow.