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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
Electrolysis of water is a chemical change because it involves breaking down water molecules (H2O) into their elemental components (hydrogen and oxygen gas) through a chemical reaction induced by an electric current. This process results in the formation of new substances with different chemical properties.
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Is water a physical or chemical change?
Water changing from liquid to solid (ice) or gas (steam) is a physical change, as the chemical composition of water remains the same. However, when water undergoes electrolysis to produce hydrogen and oxygen gas, it is a chemical change as the chemical composition of water is altered.
Is electroplating physical or chemical change?
Electroplating involves a combination of physical and chemical changes. The metal ions (chemical change) in the solution are reduced and deposited onto the object's surface using electricity (physical process).
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).
Which one is a chemical change-eletrolysis of water or sodium chloride exposed in sunlight?
The electrolysis of water is a chemical change because it breaks down water molecules into hydrogen and oxygen gas. On the other hand, sodium chloride exposed to sunlight is a physical change as it may undergo phase changes, but the chemical composition remains the same.
Is electrolysis of water to form hydrogen and oxygen a physical or chemical change?
It is a chemical change because you are breaking the water into its elements, hydrogen and oxygen, and it is no longer water. I NEED THE NUMBER'S ^ Here They are 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
Is electroplating physical or chemical change?
Electroplating involves a combination of physical and chemical changes. The metal ions (chemical change) in the solution are reduced and deposited onto the object's surface using electricity (physical process).
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?
Water can undergo several chemical changes, including electrolysis to produce hydrogen and oxygen gas, oxidation reactions to form rust, and hydrolysis to break down compounds into simpler molecules. Additionally, water can participate as a reactant or product in various acid-base reactions.
Physical changes of oil and water?
Oil and water do not mix because they have different polarities. When oil and water are mixed, they separate into distinct layers due to their different densities. This separation is a physical change where the molecules of each substance retain their original properties.
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).
