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Why heating copper wire in the presence of air at high temperature a chemical change Why?
Heating copper wire in the presence of air at high temperatures causes a chemical change because it leads to the oxidation of copper. When exposed to oxygen, copper reacts to form copper oxide, resulting in a new substance with different properties. This transformation involves a rearrangement of atoms and bonds, characteristic of a chemical change, as opposed to a physical change where the substance remains the same.
Dose recycled copper wire be come new copper wire?
Copper wire sent for recycling is remelted and rerefined. It becomes a new copper product one of which might be new copper wire.
Can you change from aluminum wire to copper wire in a new oven?
It is not recommended to change the type of wire used in an appliance as it can affect the appliance's performance and safety. It is best to follow the manufacturer's recommendations for wiring specifications to ensure the oven operates safely and efficiently. If you have concerns about the wiring, it is best to consult a professional electrician.
Do magnets repel or attract copper wire?
depends on the content of the copper wire, if its 100% usually it will
What are the elements in a copper wire?
The primary element in a copper wire is copper itself, which can range from 99.9% to 99.999% pure. Copper wires are often also alloyed with other elements such as tin or silver to improve their properties like strength and conductivity. Insulation materials like PVC or nylon are also used around the copper wire to protect and insulate it.
When you cut a Copper wire for wires in half in half is it example of what change?
Cutting a copper wire in half is an example of a physical change. This is because the process alters the wire's size and shape but does not change its chemical composition or properties. The copper atoms remain intact, and the material can still conduct electricity just as it did before being cut.
Is stretching wire into copper a physical or chemical change?
Stretching wire into copper is a physical change because the composition of the material remains the same. The rearrangement of copper atoms in the wire does not alter the chemical identity of the substance.
If the length of a copper wire is reduced by half then the resistance of the wire will be?
The resistance of a wire is directly proportional to its length, so if the length is reduced by half, the resistance will also be reduced by half.
Is stretching copper into wire physical or chemical change?
If you meant to ask, "Is stretching copper into wire a physical or chemical change", it's a physical change.
What are examples of objectives?
Copper Wire can be an example, or vanadium.
What is an example of an example of metallic bonds?
all metals are metallic bonding. use any one of them all metals are metallic bonding. use any one of them
What would you indicate that a physical change takes place when copper is drawn into wire?
Copper is reshaped, but it's molecular structure does not change ;)
What would indicate that. Physical change takes place when copper is drawn into wire?
Copper is reshaped, but it’s molecular structure does not change.
What is the evidence that indicates that both physical and chemical changes occur when a copper wire is heated in a Bunsen burner flame?
When a copper wire is heated in a Bunsen burner flame, the copper's color changes to become a glowing red. It won't be restored to its original appearance after cooling. Instead, it becomes a black material called copper (II) oxide, which is 79.9% copper and 20.1% oxygen (was 100% copper before it was burned). This chemical change occurred as the oxygen in the air combined with the copper during the heating process.
Is drawing cooper into wire a chemical change?
No, drawing copper into wire is a physical change because the chemical composition of copper remains the same throughout the process. The transformation involves only a change in shape and size, not in the chemical properties of the copper atoms.
Copper wire is bent is physical or chemical?
Bending a copper wire is a physical change because the copper itself does not undergo a chemical reaction. The arrangement of copper atoms simply changes temporarily when the wire is bent, but the properties of copper remain the same.
1 Bending a copper wire is an example of what type of property?
It is a physical property. Malleability is a physical property in lots of metals (including copper). It is not a characteristic property, because it is not unique to copper. (Other metals share the same property).
