Question

Balancing Equations Practice
For each of the following chemical reactions
Balance the reactions (make sure to write out your ‘inventory’ for each side of the reaction)
Classify each type of reaction: single replacement, double replacement, synthesis, decomposition, combustion

1) _____ P4 + _____ O2 → _____ P2O3





Type of reaction:_

Answer 1

Balanced equation:
P4 + 3 O2 → 2 P2O3

Inventory:
- Left: P = 4, O = 3×2 = 6
- Right: P = 2×2 = 4, O = 2×3 = 6

Type of reaction: synthesis (combination)