Study the following unbalanced redox reaction. which one of the following choices represents the balanced redox equation? p4 + o2→ p4o10

p4→ p4 + 2e−

p4 + o2→ p4

p4 + 4o2→ 4p4o10

p4 + 5o2→ p4o10

In order to balance chemical reaction equation, we apply the principle of conservation of mass, which states that the total mass in a system remains constant. Therefore, the amount of each substance on the left side of the equation is the same as that on the right. The equation is:
P₄ + O₂ → P₄O₁₀

Balancing:
P₄ + 5O₂ → P₄O₁₀

The correct answer is b