I believe it’s a. hope this helps
Answer:
[OH⁻] = 8x10⁻¹⁰
Explanation:
Kw = 1x10⁻¹⁴
Kw = [H₃O⁺] . [OH⁻]
1x10⁻¹⁴ = 1.25x10⁻⁵ . [OH⁻]
1x10⁻¹⁴ / 1.25x10⁻⁵ = [OH⁻]
[OH⁻] = 8x10⁻¹⁰
Answer:
oxygen atoms gain electrons and hydrogen atoms lose electron
Explanation:
Hydrogen oxygen fuel cell involves redox reactions.
It is an electrochemical cell, which is used for many applications like rocket propellant.
The actual reaction is
![H_{2}+\frac{1}{2}O_{2}--->H_{2}O](https://tex.z-dn.net/?f=H_%7B2%7D%2B%5Cfrac%7B1%7D%7B2%7DO_%7B2%7D---%3EH_%7B2%7DO)
Here hydrogen undergoes oxidation as it loses electrons
Oxygen undergoes reduction as it gains electrons.
The redox reactions are
At anode:
[loss of electrons by hydrogen]
At cathode:
[gain of electrons by oxygen]
Natural
- solar system
- plant root system
- human digestive system
Human made
- telephone system
- city transit system
- water purification system
ZnCO₃ ---T---> ZnO<span>↓</span> + CO₂ ↑