Respuesta :
Since X is more reactive than Y
So X is oxidized to X²⁺ and Y²⁺ is reduced to Y
The overall cell reaction is:
X(s) + Y²⁺(aq) → X²⁺(aq) + Y(s)
X electrode:
- Electrons in the wire flow away from.
- Anions from the salt bridge flow toward.
- Anode
- Loses mass
Y electrode:
- Electrons in the wire flow toward
- Cations from the salt bridge flow toward
- Cathode
- Gains mass
So X is oxidized to X²⁺ and Y²⁺ is reduced to Y
The overall cell reaction is:
X(s) + Y²⁺(aq) → X²⁺(aq) + Y(s)
X electrode:
- Electrons in the wire flow away from.
- Anions from the salt bridge flow toward.
- Anode
- Loses mass
Y electrode:
- Electrons in the wire flow toward
- Cations from the salt bridge flow toward
- Cathode
- Gains mass
The anode is X and the cathode is Y
Further explanation
Voltaic cells or also called galvanic cells are electrochemical cells that produce electrical energy due to redoxs reactions / chemical reactions.
Electric current is generated due to the flow of electrons from the anode that undergoes an oxidation reaction to the cathode which has a reduction reaction in the circuit of an outer wire circuit
The parts of a voltaic cell are:
- Cathode : reduction occurs, a positive pole
- Anode: oxidation occurs, a negative pole
- Electrolytes: an electrically conductive solution on both electrodes
- Conductor wire: the link between the cathode and the anode
- Salt bridge: as neutralizing anions and excess cations of electrolyte solution (supplying anions to the anode and cations to the cathode; for example KNO₃ solution)
Cell potential (E °) is the potential difference between the two electrodes in an electrochemical cell.
Electric current moves from a high potential pole to a low potential, so the cell potential is the difference between an electrode that has a high electrode potential (cathode) and an electrode that has a low electrode potential (anode)
E ° cell = E ° cathode -E ° anode
or:
E ° cell = E ° reduction-E ° oxidation
The cathode has more positive E °, and anode has smaller (negative) E °
Potential positive reactions indicate reactions take place spontaneously
The metal activity series, called the Volta series, shows metal reactivity in redox reactions
The order is:
Li K Ba Sr Ca Na Mg Al Mn Zn Cr Fe Cd Co Ni Sn Pb H Cu Hg Ag Pt Au
The metal element with a standard electrode potential is smaller on the left, while the metal with a larger electrode potential on the right.
From left to right: the reactivity of the metal decreases (reactive = easier to release electrons), the reducing power (reducing agent) decreases, the oxidizing power (oxidizing) increases
So the metal element on the left can push/reduce the metal on the right so that the reaction is spontaneous
While the metal element on the right is not able to oxidize the left metal
If x is more reactive than y (that is, x is more readily reacts to the form than y does),
So that X easily releases electrons, oxidation reactions occur,
X ----> X²⁺ + 2e⁻, and
Y reduction reactions occur,
Y²⁺ + 2e⁻ ---> Y
So the anode is X and the cathode is Y
The cell : (left anode, right cathode)
X | X²⁺ || Y²⁺ | Y
E cell = E ° Y - E ° X
In the voltaic array, the position of the element X is to the left of the element Y
Learn more
cell potential
https://brainly.com/question/8727728
a reducing agent
https://brainly.com/question/2890416
an oxidation-reduction reaction
https://brainly.com/question/2973661
Keywords: cell potential, voltaic series, cathode, anode, reduction, oxidation
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