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Is an copper a mixture or substance?
copper is a substance
What are the sing of chemical change?
Signs of chemical change are when a substance changes into a new substance. Like Paper being burned turns into gray powder. That is a chemical change.
When copper turns green when exposed to the environment a physical or chemical change?
First, copper doesn't "turn green," it reacts with oxygen in the air to form copper oxide. This is a chemical change, because copper oxide is a substance that was not there before.
Is the dark substance on copper after heating a new substance?
The darks substance is copper oxide, formed when the copper reacts with atmospheric oxygen.
Is copper is a pure substance?
Yes, copper is an element, which is a pure substance.
Is copper substance or mixture?
it is substance
Is copper wire a pure substance mechanical mixture or a solution?
Copper wire is a pure substance, as it is made entirely of copper atoms.
Is copper wire mixture or substance?
Copper wire is a substance because it is made up of a single type of material, which is copper. It is not a mixture of different substances.
Is copper a pure substance or a mixture?
Copper is a pure substance.
Is copper plastic substance?
Copper is a metal.
Is copper when it turns green in the air a chemical change?
The green color on copper when it oxidizes in the air is a physical change, not a chemical change. The process is primarily due to the formation of a layer of copper oxide on the surface of the copper, which alters the appearance without changing the chemical composition of the copper itself.
When copper turns green when exposed to air a physical or chemical change?
When copper turns green upon exposure to air, it undergoes a chemical change. This process occurs due to the reaction of copper with oxygen and moisture in the environment, forming copper carbonate and other compounds, commonly referred to as patina. Unlike physical changes, which do not alter the substance's chemical identity, this transformation changes the composition of the material.
