Respuesta :
Answer:
N₂ + 3H₂ → 2NH₃
2H₂O → 2H₂ + O₂
CH₄ + 2O₂ → CO₂ + 2H₂O
Explanation:
A) Make ammonia:
Chemical equation:
N₂ + H₂ → NH₃
Balanced chemical equation:
N₂ + 3H₂ → 2NH₃
Step one:
N₂ + H₂ → NH₃
N = 2 N = 1
H = 2 H = 3
Step 2:
N₂ + 3H₂ → 2NH₃
N = 2 N = 1
H = 2×3 = 6 H = 3×2 = 6
Step 3:
N₂ + 3H₂ → 2NH₃
N = 2 N = 1×2 = 2
H = 2×3 = 6 H = 3×2 = 6
B) separate water:
Chemical equation:
H₂O → H₂ + O₂
Balanced chemical equation:
2H₂O → 2H₂ + O₂
Step one:
H₂O → H₂ + O₂
H = 2 H = 2
O = 1 O = 2
Step 2:
2H₂O → H₂ + O₂
H = 2×2 = 4 H = 2
O = 1×2 =2 O = 2
Step 3:
2H₂O → 2H₂ + O₂
H = 2×2 = 4 H = 2×2 = 4
O = 1×2 =2 O = 2
C) Combust methane
Chemical equation:
CH₄ + O₂ → CO₂ + H₂O
Balanced chemical equation:
CH₄ + 2O₂ → CO₂ + 2H₂O
Step one:
CH₄ + O₂ → CO₂ + H₂O
C = 1 C = 1
H = 4 H = 2
O = 2 O = 3
Step 2:
CH₄ + 2O₂ → CO₂ + H₂O
C = 1 C = 1
H = 4 H = 2
O = 2×2 = 4 O = 3
Step 3:
CH₄ + 2O₂ → CO₂ + 2H₂O
C = 1 C = 1
H = 4 H = 2×2 = 4
O = 2×2 = 4 O = 2 + 2 = 4