Balance the chemical equations ⚖️ and determine the numbers of the different atoms ⚛️ present in the reactants and products.

• Chemical equation 1 ⚗️
  Reaction of copper(II) oxide with aluminium 🔥
  Word equation:
  Aluminium + Copper(II) oxide → Aluminium oxide + Copper
  Chemical equation:
  
  Al + CuO → Al₂O₃ + Cu

  Reactants	Products
  Al →	Al → ?
  Cu →	Cu → ?
  O →	O → ?

• Chemical equation 2 ⚗️
  Reaction of an iron oxide with carbon 🔥
  Word equation:
  Carbon + Iron oxide → Iron + Carbon dioxide
  Chemical equation:
  
  C + Fe₂O₃ → Fe + CO₂

  Reactants	Products
  C →	C → ?
  Fe →	Fe → ?
  O →	O → ?

• Chemical equation 3 ⚗️
  Reaction of iron with water 💧
  Word equation:
  Iron + Water → Iron oxide + Dihydrogen
  Chemical equation:
  
  Fe + H₂O → Fe₃O₄ + H₂

  Reactants	Products
  Fe →	Fe → ?
  H →	H → ?
  O →	O → ?

• Chemical equation 4 ⚗️
  Methanol combustion 🔥
  Word equation:
  Methanol + Dioxygen → Carbon dioxide + Water
  Chemical equation:
  
  CH₃OH + O₂ → CO₂ + H₂O

  Reactants	Products
  C →	C → ?
  H →	H → ?
  O →	O → ?

📊 RESULT: