Answer:
The balanced reaction in the acidic medium is:

Explanation:

1)
( oxidation)
Balance oxygen by adding water :

Now , balance hydrogen by adding hydrogen ions on the side where hydrogen are less.

Add electrons to balance charge where positive charge is more.
..[1]
2)
(reduction)
Balance oxygen by adding water :

Now , balance hydrogen by adding hydrogen ions by adding them on the side where hydrogen are less.
..[2]
Add electrons to balance charge where positive charge is more.
..[2]
3 × [1] + 2 × [2]
The balanced reaction in the acidic medium is:

Answer:
B
Explanation:
equilibrium happens when two things are in complete balance and thermal is in reference to heat so two things are in thermal equilibrium once they have the same temperature.
<span>Dmitri Mendeleev's Periodic Law states that chemical and physical properties repeat themselves in groups of 8.</span>