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Why are the oxidation and reduction half- reactions separated in an electrochemical cell?
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Why use half equations in oxidation and reduction?
Because oxidation and reduction reactions can be separated from each other in space by the use of at least two electrodes, oxidation occurring at the surface of one electrode and reduction at the surface of another.
Can nickel and copper be separated once mixed?
All mixtures can be separated easily, chemical reactions cannot.
What kind of change occurs when a compond is separated into its components?
A chemical change occurs because compound is two elements put together so when they are separated it forms a new substance.
What is devolatilization reactions?
This is a reaction of an equation of the form: hydrous material A = Anhydrous material B + water (H2O) Pretty much its when you have a certain material, such as in a metamorphic process, where the volatile material is separated from the rest of the material
Is is possible to convert atoms of one element into atoms of another?
According to Dalton's atomic theory chemical reactions occur when atoms are separated, joined, or rearranged. Atoms of one element, however, are never changed into atoms of another element as a result of a chemical reaction (it is possible only during nuclear reactions and radioactive disintegration).
Why use half equations in oxidation and reduction?
Because oxidation and reduction reactions can be separated from each other in space by the use of at least two electrodes, oxidation occurring at the surface of one electrode and reduction at the surface of another.
Can a substance in a compound be separated?
If you think to the elements existing in a compound they can be separated by the intermediate of chemical reactions.
How can substances in a compound be separated?
If you think to the elements existing in a compound they can be separated by the intermediate of chemical reactions.
Can nickel and copper be separated once mixed?
All mixtures can be separated easily, chemical reactions cannot.
How can compounds be separated into smaller particles?
Compounds can be decomposed by chemical reactions.
How does an electrolytic cell differ from a voltaic cell?
A Galvanic cell, or Voltaic cell, named after Luigi Galvani, or Alessandro Volta respectively, is an electrochemical cell that derives electrical energy from chemical reactions taking place within the cell. It generally consists of two different metals connected by a salt bridge, or individual half-cells separated by a porous membrane.An electrolytic cell decomposes chemical compounds by means of electrical energy, in a process called electrolysis; the Greek word lysis means to break up. The result is that the chemical energy is increased. Important examples of electrolysis are the decomposition of water into hydrogen and oxygen, and bauxite into aluminum and other chemicals.
What can only be separated by chemical process?
Compounds (molecules consisting of two or more different chemical elements) can only b separated by chemical reactions.
Can a compound be separated into its elements by filtration?
A compound has formed a more stable state than the elements by themselves. They released photons to the Universe in honor of this more stable configuration. Unless the "filter" is made of strands of energetic plasma, that can rip this more-stable configuration apart by supplying the lost "binding energy", no. The answer is "no", filtration cannot separate out elements.
What kind of change occurs when a compond is separated into its components?
A chemical change occurs because compound is two elements put together so when they are separated it forms a new substance.
How is protactinium made?
1. Protactinium can be separated from uranium ores. 2. Protactinium can be obtained artificially by nuclear reactions, from thorium 232.
What must be balanced in an oxidation-reduction reaction?
Balancing ChemicalsA chemical equation is balanced when each side has equal amount of each atom.To balance this we must multiply upon both sides. If we have two chemicals we need to add... keep a space in between. If they will be multiplied, keep them together.H2 +O2 -----> H2OTo balance this, we must multiply H2O by 2; so at to make this "O" equal to the 2 "O" s on the other side.But by doing this, the H2 of the same side will also have to be multiplied by 2.This will make 4 hydrogen atoms. Fortunately, the H2 of the other side can be multiplied by 2. O2 will not be effected.Important: If they are separated by a plus, they can be considered 2 different values.Al + O2 -----> Al2O3 is the schematic equation for aluminum reacting with oxygen to form aluminum oxide but it is NOT balanced. 4Al + 3O2 -----> 2Al2O3 is the balanced equation with all O an Al numbers balancing.
Where are ores found?
Mined of metal ores depend on the position of the metal in electrochemical or activity series but metals can be extract through electrolysis and reduction process.
