Question

part c: balance each of the following equati show your work.
p + o₂ → p₄o₁₀
p= p=
o= o=
hgo → hg + o₂
hg= hg=
o= o=

Explanation:

Step1: Balance P in first equation

Left P: 1, Right P: 4 → Add coefficient 4 to P
$4\text{P} + \text{O}_2
ightarrow \text{P}_4\text{O}_{10}$
Check P: Left=4, Right=4

Step2: Balance O in first equation

Left O: 2, Right O:10 → Add coefficient 5 to $\text{O}_2$
$4\text{P} + 5\text{O}_2
ightarrow \text{P}_4\text{O}_{10}$
Check O: Left=10, Right=10

Step3: Balance O in second equation

Left O:1, Right O:2 → Add coefficient 2 to HgO
$2\text{HgO}
ightarrow \text{Hg} + \text{O}_2$
Check O: Left=2, Right=2

Step4: Balance Hg in second equation

Left Hg:2, Right Hg:1 → Add coefficient 2 to Hg
$2\text{HgO}
ightarrow 2\text{Hg} + \text{O}_2$
Check Hg: Left=2, Right=2

Answer:

$4\text{P} + 5\text{O}_2
ightarrow \text{P}_4\text{O}_{10}$
$2\text{HgO}
ightarrow 2\text{Hg} + \text{O}_2$