Cambridge Secondary (7-9). Stage 9. MCE Science. Workbook - Unit 6: Displacement Reactions - Question 5

Using the molecules constructed in step 1, as well as the cards or blocks with arrows and ‘+’ signs, make models to represent the symbol equations.

2H₂ + O₂ → 2H₂O
N₂ + 3H₂ → 2NH₃
C + O₂ → CO₂
CH₄ + 2O₂ → CO₂ + 2H₂O