Question

C + O₂ =? Si + O₂=? Ca +C = ?Al + C =? Fe + O₂ =? Zn + H₂SO4 (pоб.)=? Al + H₂O =? Li+ H2O =? Au + HCl =?Ba + HCl =?​

Answer 1

Ответ:

C + O₂ = CO₂

Si + O₂ = SiO₂

Ca + C = CaC₂

Al + C = AlC

Fe + O₂ = FeO₂ (or Fe₂O₃)

Zn + H₂SO₄ = ZnSO₄ + H₂

Al + H₂O = Al(OH)₃ + H₂

Li + H₂O = LiOH + H₂

Au + HCl = AuCl₃ + H₂

Ba + HCl = BaCl₂ + H₂

Answer 2

Here are the chemical reactions for the given combinations:

1. C + O₂ → CO₂ (Carbon reacts with oxygen to form carbon dioxide)
2. Si + O₂ → SiO₂ (Silicon reacts with oxygen to form silicon dioxide)
3. Ca + C → CaC₂ (Calcium reacts with carbon to form calcium carbide)
4. 2Al + 3C → 2Al4C3 (Aluminum reacts with carbon to form aluminum carbide)
5. 4Fe + 3O₂ → 2Fe₂O₃ (Iron reacts with oxygen to form iron(III) oxide, also known as rust)
6. Zn + H₂SO₄ (pоб.) → ZnSO₄ + H₂ (Zinc reacts with sulfuric acid to form zinc sulfate and hydrogen gas)
7. 2Al + 6H₂O → 2Al(OH)₃ + 3H₂ (Aluminum reacts with water to form aluminum hydroxide and hydrogen gas)
8. 2Li + 2H₂O → 2LiOH + H₂ (Lithium reacts with water to form lithium hydroxide and hydrogen gas)
9. 2Au + 6HCl → 2AuCl₃ + 3H₂ (Gold reacts with hydrochloric acid to form gold(III) chloride and hydrogen gas)
10. Ba + 2HCl → BaCl₂ + H₂ (Barium reacts with hydrochloric acid to form barium chloride and hydrogen gas)

Please note that these are simplified representations of the reactions, and in reality, reaction conditions and stoichiometry may vary.