Atomic number = protons
Protons = P Electrons = E P = E
Atomic mass = Neutrons + Protons
Atomic number = atomic mass = neutrons
P = E
AM - AN = N
Example:
Calcium = 20 Protons 20P = 20E
Atomic mass - atomic number = neutrons :)
The balanced skeleton reactions are given below
Cr₂O₇²⁻(aq) +3Zn(s) + 14(aq) → 3Zn²⁺(aq) +2 Cr³⁺(aq) + 7(l)
The oxidising agent and reducing agents are Cr₂O₇²⁻ and Zn.
There are following steps involve in balance redox reaction in acidic medium .
- First divide the reaction into two half reactions .
- Balance the elements other than oxygen and hydrogen atom.
- Balance the oxygen atom by adding on that side where number of oxygen atom is less .
- Balance the hydrogen atom by adding on another side of in which water attached .
- Balance the charge by adding .
- Add the two half reaction .
The species which reduces the other species in the redox reaction is called reducing agent . Similarly , the species which oxidize the other species in the redox reaction is called reducing agent .
To learn more about reducing agents please click here ,
brainly.com/question/2890416?
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