Question

Fe + O2 → Fe3O4; Mg + TiCl4 → Ti + MgCl2; C + O2 → CO2; K + S → K2S AgBr → Ag + Br AgNO3 → Ag + NO2 + O2 Ba + O2 → BaO; CH4 → C2H2 + H2 ; N2O → N2 + O2; Al + Cr2O3 → Al2O3 + Cr Ca + HCl → CaCl2 + H2 ; Na + S → Na2S; Al + Cr2O3 → Al2O3 + Cr Li + N2 → Li3N K2S + CuCl2 → CuS↓ + KCl Fe2O3 + H2 → H2O + Fe NO2 + H2O + O2 → HNO3 AgNO3 → Ag + NO2 + O2 Cl2 + KI → KCl + I2 Na2SO4 + BaCl2 → BaSO4↓ + NaCl Zn + O2 → ZnO Al + HCl → AlCl3 + H2↑ Cu(OH)2 → CuO + H2O HCl + Zn → ZnCl2 + H2 Al + O2 → Al2O3 MnO2 + H2 → Mn + H2O H2O2 → H2 + O2 HNO3 + Fe(OH)3 → Fe(NO3)3 + H2O

Answer 1

3Fe + 2O2 → Fe3O4
2Mg + TiCl4 → Ti + 2MgCl2
C2 + 2 O2 = 2 CO2
4 K + S2 = 2 K2S
AgBr → Ag + Br
2AgNO3 → 2Ag + 2NO2 + O2
2BaO + O2 2BaO2
2CH4 → C2H2 + 3H2
2N2O → 2N2 + O2
Cr2O3 + 2Al → 2Cr + Al2O3
Ca + 2HCl → CaCl2 + H2
2Na + S → Na2S
6Li + N2 → 2Li3N
CuCl2+ K2S → CuS ↓+ 2KCl
Fe2O3 + 3H2 → 2Fe + 3H2O
4NO2 + O2 + 2H2O → 4HNO3
2KI + Cl2 → 2KCl + I2
4Fe + 12HNO3 + 3O2 → 4Fe(NO3)3 + 6H2O

Answer 2

Chemical Reactions:

1. Fe + O2 → Fe3O4 - This is a reaction between iron (Fe) and oxygen (O2) to form iron(II,III) oxide (Fe3O4), also known as magnetite. - The balanced equation for this reaction is: 4Fe + 3O2 → 2Fe3O4 [[1]].

2. Mg + TiCl4 → Ti + MgCl2 - This is a reaction between magnesium (Mg) and titanium(IV) chloride (TiCl4) to form titanium (Ti) and magnesium chloride (MgCl2). - The balanced equation for this reaction is: 2Mg + TiCl4 → Ti + 2MgCl2 [[2]].

3. C + O2 → CO2 - This is a combustion reaction between carbon (C) and oxygen (O2) to form carbon dioxide (CO2). - The balanced equation for this reaction is: C + O2 → CO2 [[3]].

4. K + S → K2S - This is a reaction between potassium (K) and sulfur (S) to form potassium sulfide (K2S). - The balanced equation for this reaction is: 2K + S → K2S [[4]].

5. AgBr → Ag + Br - This is a decomposition reaction of silver bromide (AgBr) into silver (Ag) and bromine (Br). - The balanced equation for this reaction is: 2AgBr → 2Ag + Br2 [[5]].

6. AgNO3 → Ag + NO2 + O2 - This is a decomposition reaction of silver nitrate (AgNO3) into silver (Ag), nitrogen dioxide (NO2), and oxygen (O2). - The balanced equation for this reaction is: 2AgNO3 → 2Ag + 2NO2 + O2 [[6]].

7. Ba + O2 → BaO - This is a reaction between barium (Ba) and oxygen (O2) to form barium oxide (BaO). - The balanced equation for this reaction is: 2Ba + O2 → 2BaO [[7]].

8. CH4 → C2H2 + H2 - This is a reaction between methane (CH4) to form acetylene (C2H2) and hydrogen (H2). - The balanced equation for this reaction is: CH4 → C2H2 + 2H2 [[8]].

9. N2O → N2 + O2 - This is a decomposition reaction of nitrous oxide (N2O) into nitrogen gas (N2) and oxygen gas (O2). - The balanced equation for this reaction is: 2N2O → 2N2 + O2 [[9]].

10. Al + Cr2O3 → Al2O3 + Cr - This is a reaction between aluminum (Al) and chromium(III) oxide (Cr2O3) to form aluminum oxide (Al2O3) and chromium (Cr). - The balanced equation for this reaction is: 2Al + Cr2O3 → Al2O3 + 2Cr [[10]].

11. Ca + HCl → CaCl2 + H2 - This is a reaction between calcium (Ca) and hydrochloric acid (HCl) to form calcium chloride (CaCl2) and hydrogen gas (H2). - The balanced equation for this reaction is: Ca + 2HCl → CaCl2 + H2 [[11]].

12. Na + S → Na2S - This is a reaction between sodium (Na) and sulfur (S) to form sodium sulfide (Na2S). - The balanced equation for this reaction is: 2Na + S → Na2S [[12]].

13. Li + N2 → Li3N - This is a reaction between lithium (Li) and nitrogen gas (N2) to form lithium nitride (Li3N). - The balanced equation for this reaction is: 6Li + N2 → 2Li3N [[13]].

14. K2S + CuCl2 → CuS + KCl - This is a reaction between potassium sulfide (K2S) and copper(II) chloride (CuCl2) to form copper(II) sulfide (CuS) and potassium chloride (KCl). - The balanced equation for this reaction is: K2S + CuCl2 → CuS + 2KCl [[14]].

15. Fe2O3 + H2 → H2O + Fe - This is a reaction between iron(III) oxide (Fe2O3) and hydrogen gas (H2) to form water (H2O) and iron (Fe). - The balanced equation for this reaction is: Fe2O3 + 3H2 → 3H2O + 2Fe [[15]].

16. NO2 + H2O + O2 → HNO3 - This is a reaction between nitrogen dioxide (NO2), water (H2O), and oxygen (O2) to form nitric acid (HNO3). - The balanced equation for this reaction is: 4NO2 + 2H2O + O2 → 4HNO3 [[16]].

17. Cl2 + KI → KCl + I2 - This is a reaction between chlorine gas (Cl2) and potassium iodide (KI) to form potassium chloride (KCl) and iodine (I2). - The balanced equation for this reaction is: Cl2 + 2KI → 2KCl + I2 [[17]].

18. Na2SO4 + BaCl2 → BaSO4 + 2NaCl - This is a reaction between sodium sulfate (Na2SO4) and barium chloride (BaCl2) to form barium sulfate (BaSO4) and sodium chloride (NaCl). - The balanced equation for this reaction is: Na2SO4 + BaCl2 → BaSO4 + 2NaCl [[18]].

19. Zn + O2 → ZnO - This is a reaction between zinc (Zn) and oxygen (O2) to form zinc oxide (ZnO). - The balanced equation for this reaction is: 2Zn + O2 → 2ZnO [[19]].

20. Al + HCl → AlCl3 + H2↑ - This is a reaction between aluminum (Al) and hydrochloric acid (HCl) to form aluminum chloride (AlCl3) and hydrogen gas (H2). - The balanced equation for this reaction is: 2Al + 6HCl → 2AlCl3 + 3H2 [[20]].

21. Cu(OH)2 → CuO + H2O - This is a decomposition reaction of copper(II) hydroxide (Cu(OH)2) into copper(II) oxide (CuO) and water (H2O). - The balanced equation for this reaction is: Cu(OH)2 → CuO + H2O [[21]].

22. HCl + Zn → ZnCl2 + H2 - This is a reaction between hydrochloric acid (HCl) and zinc (Zn) to form zinc chloride (ZnCl2) and hydrogen gas (H2). - The balanced equation for this reaction is: 2HCl + Zn → ZnCl2 + H2 [[22]].

23. Al + O2 → Al2O3 - This is a reaction between aluminum (Al) and oxygen (O2) to form aluminum oxide (Al2O3). - The balanced equation for this reaction is: 4Al + 3O2 → 2Al2O3 [[23]].

24. MnO2 + H2 → Mn + H2O - This is a reaction between manganese(IV) oxide (MnO2) and hydrogen gas (H2) to form manganese (Mn) and water (H2O). - The balanced equation for this reaction is: MnO2 + 4H2 → Mn + 4H2O [[24]].

25. H2O2 → H2 + O2 - This is a decomposition reaction of hydrogen peroxide (H2O2) into water (H2O) and oxygen gas (O2). - The balanced equation for this reaction is: 2H2O2 → 2H2O + O2 [[25]].

26. HNO3 + Fe(OH)3 → Fe(NO3)3 + H2O - This is a reaction between nitric acid (HNO3) and iron(III) hydroxide (Fe(OH)3) to form iron(III) nitrate (Fe(NO3)3) and water (H2O). - The balanced equation for this reaction is: 6HNO3 + Fe(OH)3 → Fe(NO3)3 + 3H2O [[26]]