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What chemical property turns copper green if its left outside for a long time?
Wiki User
∙ 11y ago
The substance would be... the copper itself! But it's not that trivial. The green substance is the product of the corrosion of copper and its alloys. In clean atmosphere product is called copper (II) dihydroxycarbonate [Cu(OH)]2CO3. The presence of sulphur dioxide in the atmosphere causes copper (II) dihydroxysulphate [Cu(OH)]2SO4 to be present in the corroded layer.
Wiki User
∙ 14y ago
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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.
What is the chemical name for a green coating on a coin?
For copper or some copper alloys coins the coating is hydrated copper carbonate.
Is copper turing green a physical or chemical change?
It's a chemical change. Copper oxidizes to form copper oxide, which is similar to iron rusting. A color change very often indicates a chemical change.
How can a green penny turn green?
Pennies are made, or at least coated, with Copper and that copper can oxidize and turn green. Newer pennies have an alloy metal that is supposed to reduce this chemical action.
Is copper turning green when exposed to the environment a chemical change?
Chemical because it is being exposed to another compound and forming a new substance
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.
Does copper turn green by a chemical or physical change?
Chemical. It turns green because of oxidation.
Is copper turning green when expose to environment a chemical change and why?
It is a chemical change because chemical reactions are involved; copper become hydrated copper carbonate.
What makes pennies turn green?
Oxygen reacts with the copper in the penny, the copper oxidizes and it turns green. The Statue of liberty is made of copper. Over the century, it reacted with oxygen and turned green. This is a chemical change.
Copper turns green when exposed to the environment?
chemical
When A bronze statue develops a green coating (patina) over time is physical change or chemical?
It is chemical. The copper in bronze turns green when it oxidizes.
What metal goes green if left outside?
copper
Copper turns green when exposed to the environment chemical or physical?
it is a chemical change because copper is one of the elements on the periodical table .
Is turning of copper into green when exposed into environment physical or chemical change?
It is a chemical change.
What is the chemical name for a green coating on a coin?
For copper or some copper alloys coins the coating is hydrated copper carbonate.
Is copper turing green a physical or chemical change?
It's a chemical change. Copper oxidizes to form copper oxide, which is similar to iron rusting. A color change very often indicates a chemical change.
Is copper when it turns green in the air a chemical change?
Yes because the copper is changing into a new substance.
