Question

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7.NaOH+?→ Na2SO4 + H2O

8. BaCl2+?→ BaSo4+NaCl

9. ZnO+?→ ZnCl2+ H2O

10. ?+ KOH → Fe (OH)3+ KCl

11. AgNO3+ KCl → AgCl ↓+?

12. H2SO4+ CuS→ ?+ H2S

13. Na2CO3 + HCl→ ?+ H2O + CO2 ↑

14. Zn+ CuCl2→ ?+ Cu

15. Na2O+?→Na2SO4+H2O

16.?+ H3PO4 → AlPO4+ H2O

17. Fe2O3+?→ Fe+ H2O

18. Al2O3 + C→ CO2↑+?

Answer 1

7. 2NaOH + H₂SO₄ \(\rightarrow\) Na₂SO₄ + 2H₂O

8. BaCl₂ + Na₂SO₄ \(\rightarrow\) BaSO₄ + 2NaCl

9. ZnO + 2HCl \(\rightarrow\) ZnCl₂ + H₂O

10. FeCl₃ + 3KOH \(\rightarrow\) Fe(OH)₃ + 3KCl

11. AgNO₃ + KCl \(\rightarrow\) AgCl \(\downarrow\) + KNO₃

12. H₂SO₄ + CuS \(\rightarrow\) CuSO₄ + H₂S

13. Na₂CO₃ + 2HCl \(\rightarrow\) 2NaCl + CO₂ \(\uparrow\)+ H₂O

14. Zn + CuCl₂ \(\rightarrow\) ZnCl₂ + Cu

15. Na₂O + H₂SO₄ \(\rightarrow\) Na₂SO₄ + H₂O

16. Al(OH)₃ + H₃PO₄ \(\rightarrow\) AlPO₄ + 3H₂O

17. Fe₂O₃ + 3H₂ \(\rightarrow\) 2Fe + 3H₂O

18. 2Al₂O₃ + 9C \(\rightarrow\) Al₄C₃ + 6CO\(\uparrow\)