Concept explainers
(a)
Interpretation: The oxidation numbers for cobalt in two substances in a lithium-ion battery has to be calculated.
Concept introduction: Oxidation number is also called oxidation state. The total number of electrons that an atom gain or loss to form a
The loss of electrons is called oxidation whereas the gain of electrons is called reduction.
In an
(b)
Interpretation:
The reaction at anode and cathode in a lithium-ion battery has to be stated.
Concept introduction: Oxidation number is also called oxidation state. The total number of electrons that an atom gain or loss to form a chemical bond with another atom is known as its oxidation state.
The loss of electrons is called oxidation whereas the gain of electrons is called reduction.
In an electrochemical cell, at anode oxidation takes place and at cathode reduction takes place.
(c)
Interpretation:
The lithium electrolyte in a battery can be dissolved in water has to be stated.
Concept introduction: Oxidation number is also called oxidation state. The total number of electrons that an atom gain or loss to form a chemical bond with another atom is known as its oxidation state.
The loss of electrons is called oxidation whereas the gain of electrons is called reduction.
In an electrochemical cell, at anode oxidation takes place and at cathode reduction takes place.
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Chemistry & Chemical Reactivity
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