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Is it possible to have a reaction in which oxidation takes place but reduction does not?
Wiki User
∙ 14y ago
Oxidation is characterized by the loss of electrons, and reduction is characterized by the gain of electrons. Since there must be an electron loser and an electron receiver, oxidation and reduction are always complimentary.
Wiki User
∙ 14y ago
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Can oxidation or reduction takes place alone why or why not what are such reactions called answer in chemistry?
These reactions are called redox reactions.Isolated reduction/oxidation is not possible.
Oxidation takes place at anode and reduction at cathode?
Oxidation takes place at anode and reduction at cathode - yes, it is correct.
What is the chemical reaction that takes place when oxygen combines with a combustible at a suitably high temperature?
The reaction is usually considered an oxidation-reduction reaction, and that's what we see in combustion, or fire. In a fire, fuel is combusted, and the fuel is oxidized in the process.
What happens when electrons are gained or lost?
Gain or electron means reduction energy is not gained but given off during this and also when oxidation takes place the same thing thing happens' energy is released when a redox reaction takes place(ie both oxidation & reduction)
The reaction that occur on exposure of a tin can to air and moisture after the tin can has been scratched which reaction occur on the anode and which occur on the cathode?
There is no anode and/or cathode when you simply have a tin can in air. There has to be two poles (usually 2 metals that differ in reduction potential). Here you have only 1 metal. But, in a voltaic (galvanic) cell, oxidation takes place at the anode, and reduction takes place at the cathode.
A single reaction where oxidation and reduction take place is called?
a redox reaction
What occurs at the cathode of a galvanic cell?
An oxidation half-reaction
Does oxygen have to be present for an oxidation-reduction reaction to take place?
nope
Can oxidation or reduction takes place alone why or why not what are such reactions called answer in chemistry?
These reactions are called redox reactions.Isolated reduction/oxidation is not possible.
Why is it possible for both reduction and oxidation to take place at the same time?
There are chemical handbooks and journals filled with examples of oxidation reduction reactions.
Rusting of iron is an example of?
Oxidation.Rust is an example of an oxidation reaction between iron and oxygen. This is why a coat of oil on iron-containing metal prevents rust--the oil stops oxygen from reaching the metal's surface so that the oxidation reaction cannot take place.
Oxidation takes place at anode and reduction at cathode?
Oxidation takes place at anode and reduction at cathode - yes, it is correct.
The following reaction takes place in an acidic solution. MnO4–(aq) + Cl–(aq) Mn2+ + Cl2(g) (unbalanced) Write the reduction and oxidation half-reactions (without electrons). :(?
Reduction Half-Reaction: MnO4-(aq) → Mn2+(aq) Oxidation Half-Reaction: Cl-(aq) → Cl2(g)
What is the chemical reaction that takes place when oxygen combines with a combustible at a suitably high temperature?
The reaction is usually considered an oxidation-reduction reaction, and that's what we see in combustion, or fire. In a fire, fuel is combusted, and the fuel is oxidized in the process.
Does Oxidation and reduction reactions occur at the same time?
Yes, an element can undergo both oxidation and reduction in the same reaction. The reaction between Zinc and Copper Sulphate is a perfect example. This type of reaction is called a redox reaction.
What happens when electrons are gained or lost?
Gain or electron means reduction energy is not gained but given off during this and also when oxidation takes place the same thing thing happens' energy is released when a redox reaction takes place(ie both oxidation & reduction)
Examples of non-redox reaction?
Any reaction that doesn't have at least one atom that increases in oxidation number during the reaction and at least one atom that decreases in oxidation number during the reaction is not a redox reaction. The atom that decreases and the atom that increases can be atoms of the same element. Examples: 2H2 + O2 --> 2H2O ( Atoms of elements have an oxidation number of 0, so that the hydrogen atoms change from 0 to +1, which is oxidation, while the oxygen atoms change from 0 to -2, which is reduction. So the reaction is a redox reaction.) An example of a reaction in which atoms of the same element undergo both oxidation and reduction is: 2 MnO4- (aq) + 5 Mn (s) + 16 H+ (aq) -> 7 Mn+2 (aq) + 4 H2O (l). (In this reaction, 2 manganese atoms change from +7 to +2, which is reduction, and 5 manganese atoms change from 0 to +2, which is oxidation. ) An example of a non-redox reaction is Pb(NO3)2 (aq) + Na2SO4 (aq) ---> 2 NaNO3 (aq) + PbSO (s). (No atom changes its oxidation state in this reaction.)
