Question

Li + O 2 → Li 2 O Al + Br 2 → AlBr 3 Cu + S → CuS CaCO 3 → CaO + CO 2 Zn + O 2 → ZnO FеО + НNО 3 → Fе(NО 3 ) 2 + Н 2 О; Аl + СuSО 4 → Аl 2 (SО 4 ) 3 + Сu; Zn + Cl 2 → ZnCl 2 H 2 O → H 2 + O 2 Fе + СІ 2 → FеСІ 3 . K + Cl 2 → KCl Сг + Вг 2 → СгВг 3 Аl + НСl → АІСl 3 + H 2 ; C + O 2 → CO

Answer 1

4Li + O 2 =2Li 2 O
2Al + 3Br 2 =2AlBr 3
Cu + S =CuS
CaCO 3 =CaO + CO 2
2Zn + O 2 =2ZnO
FеО + 2НNО 3 =Fе(NО 3 ) 2 + Н 2 О;
2Аl + 3СuSО 4 =Аl 2 (SО 4 ) 3 + 3Сu;
Zn + Cl 2 =ZnCl 2
2H 2 O =2H 2 + O 2
2Fе + 3СІ 2 =2FеСІ 3 .
2K + Cl 2 =2KCl
2Сг + 3Вг 2 =2СгВг 3
2Аl + 6НСl =2АІСl 3 + 3H 2 ;
2C + O 2 =2CO

Answer 2

The given chemical equations represent various chemical reactions. Here is a breakdown of each reaction:

1. Li + O2 → Li2O: This equation represents the reaction between lithium (Li) and oxygen (O2) to form lithium oxide (Li2O).

2. Al + Br2 → AlBr3: This equation represents the reaction between aluminum (Al) and bromine (Br2) to form aluminum bromide (AlBr3).

3. Cu + S → CuS: This equation represents the reaction between copper (Cu) and sulfur (S) to form copper(II) sulfide (CuS).

4. CaCO3 → CaO + CO2: This equation represents the decomposition reaction of calcium carbonate (CaCO3) into calcium oxide (CaO) and carbon dioxide (CO2).

5. Zn + O2 → ZnO: This equation represents the reaction between zinc (Zn) and oxygen (O2) to form zinc oxide (ZnO).

6. FeO + HNO3 → Fe(NO3)2 + H2O: This equation represents the reaction between iron(II) oxide (FeO) and nitric acid (HNO3) to form iron(II) nitrate (Fe(NO3)2) and water (H2O).

7. Al + CuSO4 → Al2(SO4)3 + Cu: This equation represents the reaction between aluminum (Al) and copper(II) sulfate (CuSO4) to form aluminum sulfate (Al2(SO4)3) and copper (Cu).

8. Zn + Cl2 → ZnCl2: This equation represents the reaction between zinc (Zn) and chlorine (Cl2) to form zinc chloride (ZnCl2).

9. H2O → H2 + O2: This equation represents the decomposition of water (H2O) into hydrogen gas (H2) and oxygen gas (O2) through electrolysis.

10. Fe + Cl2 → FeCl3: This equation represents the reaction between iron (Fe) and chlorine (Cl2) to form iron(III) chloride (FeCl3).

11. K + Cl2 → KCl: This equation represents the reaction between potassium (K) and chlorine (Cl2) to form potassium chloride (KCl).

12. Cr + B2 → CrB3: This equation represents the reaction between chromium (Cr) and boron (B2) to form chromium boride (CrB3).

13. Al + HCl → AlCl3 + H2: This equation represents the reaction between aluminum (Al) and hydrochloric acid (HCl) to form aluminum chloride (AlCl3) and hydrogen gas (H2).

14. C + O2 → CO: This equation represents the combustion reaction between carbon (C) and oxygen (O2) to form carbon monoxide (CO).

If you have any specific questions about these reactions or need further explanations, feel free to ask!