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It is a chemical change because you are breaking the water into its elements, hydrogen and oxygen, and it is no longer water.
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Oxidation of ions or neutral molecules occurs at the anode, and the reduction of ions or neutral molecules occurs at the cathode. For example, it is possible to oxidize ferrous ions to ferric ions at the anode:Fe2+
aq → Fe3+
aq + e-
It is also possible to reduce ferricyanide ions to ferrocyanide ions at the cathode:Fe(CN)3-
6 + e- → Fe(CN)4-
6
Willard Bayer
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Is electroplating physical or chemical change?
Chemical because it breaks apart the individual compounds on the molecular scale.
What chemical changes does water undergo?
Electrolysis will turn water into hydrogen and oxygen gas.
Physical changes of oil and water?
is water and oil a physical change or chemical change.
Is reactivity with water a physical or chemical change?
This is a physical change. The bubbles are pockets of steam which is the same chemical as water, just in a different state.
Why is the electrolysis of water is classified of physical change but the freezing of water is not?
Freezing is a phase transition and does not change the chemical makeup of H2O. (melting restores). Electrolysis changes the chemical structure of the water, decomposing the H2O into oxygen (O2) and hydrogen gas (H2).
Is electroplating physical or chemical change?
Chemical because it breaks apart the individual compounds on the molecular scale.
How is an chemical change differs from a physical change?
Physical change is the change in which only physical properties changes ,like color, hardness, density etc. Chemical changes affect the composition as well as chemical properties of matter and result in formation of new substance. Examples of chemical changes are : Burning of coal Burning of Paper Electrolysis of water
Is it a physical change chemical change when salt dissolves in water?
Physical
Why is the electrolysis water classified as a chemical change but the freezing of water is not?
Freezing is a phase transition and does not change the chemical makeup of H2O. (melting restores). Electrolysis changes the chemical structure of the water, decomposing the H2O into oxygen (O2) and hydrogen gas (H2).
When an electric currents is passed through water during the process of electrolysis?
It is a chemical change which manifests a physical effect of gas being evolved from a liquid. If the gases already existed and were just coming out of solution, it would be a physical change, but since it is a change from water molecules to oxygen and hydrogen molecules it is definitely a chemical change, not a physical one.
Is boliling water a chemical or physical change?
Boiling water is a physical change because it does not change the chemical composition of the water.
What chemical changes does water undergo?
Electrolysis will turn water into hydrogen and oxygen gas.
Physical changes of oil and water?
is water and oil a physical change or chemical change.
Is ocen water a physical or chemical change?
Ocean water is a substance, not a physical or chemical change.
Is making water glow a chemical change or a physical change?
It is a chemical change
Is reactivity with water a physical or chemical change?
This is a physical change. The bubbles are pockets of steam which is the same chemical as water, just in a different state.
Why is the electrolysis of water is classified of physical change but the freezing of water is not?
Freezing is a phase transition and does not change the chemical makeup of H2O. (melting restores). Electrolysis changes the chemical structure of the water, decomposing the H2O into oxygen (O2) and hydrogen gas (H2).
