Question

Урівняти хімічні рівняння: 1. C + H₂: = CH4 2. Cu + O₂ = Cu₂0 2 3. FeBr + Cl₂ = FeCl3 + Br₂ 4. Ba + O₂ BaO 5. KOH + H₂SO4= K₂SO4 + H₂O 6. V + O₂ = V₂05 7. K + S = K₂S = 8. CaO + C = CaC, + CO, 9. C+ O₂ = CO 10. Mg(OH)+ HCl= MgCl,+ H,O 11. Cr+ Br₂ = CrBr3 12. CaO + HNO3 = Ca(NO3)2 + H₂O. Допоможіть, будь ласка.​

Answer 1

Ответ:

1. С+ 2H2=CH4

2. 2Cu+O2=Cu2O

3.2Ba+O2=2BaO

Answer 2

Balancing Chemical Equations:

1. C + H₂ = CH₄ - To balance this equation, we need to have the same number of carbon and hydrogen atoms on both sides. - The balanced equation is: C + 2H₂ = CH₄ [[1]].

2. Cu + O₂ = Cu₂O - To balance this equation, we need to have the same number of copper and oxygen atoms on both sides. - The balanced equation is: 2Cu + O₂ = 2Cu₂O [[2]].

3. FeBr₃ + Cl₂ = FeCl₃ + Br₂ - To balance this equation, we need to have the same number of iron, bromine, and chlorine atoms on both sides. - The balanced equation is: 2FeBr₃ + 3Cl₂ = 2FeCl₃ + 3Br₂ [[3]].

4. Ba + O₂ = BaO - To balance this equation, we need to have the same number of barium and oxygen atoms on both sides. - The balanced equation is: 2Ba + O₂ = 2BaO [[4]].

5. KOH + H₂SO₄ = K₂SO₄ + H₂O - To balance this equation, we need to have the same number of potassium, hydrogen, sulfur, and oxygen atoms on both sides. - The balanced equation is: 2KOH + H₂SO₄ = K₂SO₄ + 2H₂O [[5]].

6. V + O₂ = V₂O₅ - To balance this equation, we need to have the same number of vanadium and oxygen atoms on both sides. - The balanced equation is: 4V + 5O₂ = 2V₂O₅ [[6]].

7. K + S = K₂S - To balance this equation, we need to have the same number of potassium and sulfur atoms on both sides. - The balanced equation is: 2K + S = K₂S [[7]].

8. CaO + C = CaC₂ + CO - To balance this equation, we need to have the same number of calcium, oxygen, carbon, and carbon monoxide atoms on both sides. - The balanced equation is: CaO + 3C = CaC₂ + CO [[8]].

9. C + O₂ = CO - To balance this equation, we need to have the same number of carbon and oxygen atoms on both sides. - The balanced equation is: C + O₂ = CO [[9]].

10. Mg(OH)₂ + HCl = MgCl₂ + H₂O - To balance this equation, we need to have the same number of magnesium, hydrogen, chlorine, and oxygen atoms on both sides. - The balanced equation is: Mg(OH)₂ + 2HCl = MgCl₂ + 2H₂O [[10]].

11. Cr + Br₂ = CrBr₃ - To balance this equation, we need to have the same number of chromium and bromine atoms on both sides. - The balanced equation is: 2Cr + 3Br₂ = 2CrBr₃ [[11]].

12. CaO + HNO₃ = Ca(NO₃)₂ + H₂O - To balance this equation, we need to have the same number of calcium, nitrogen, hydrogen, and oxygen atoms on both sides. - The balanced equation is: CaO + 2HNO₃ = Ca(NO₃)₂ + H₂O [[12]].

I hope this helps! Let me know if you have any other questions.