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Is it a chemical reaction if you but copper in a fire and it turns black?
Wiki User
∙ 10y ago
yes it is a chemical reaction because the change involved heat and all chemical reactions involve heat and a difference in the appearence of the substance which has recieved heat is noticed
Wiki User
∙ 10y ago
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If you put a banana in a cupboard for a week and it turns black does that mean it is a chemical reaction?
yes, if it turns into a different colour than it is a chemical reaction. hope that helps
What turns on a chemical reaction?
In a chemical reaction reactants are transformed in products.
Why does your copper wiring turn black?
Copper wiring turns black due to oxidation. It is the air reacting with the metal. Copper wiring also sometimes turns green.
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.
When a metal powder is heated in open dish it turns black which metal is that?
The metal might be copper. When copper is heated, it reacts with oxygen in air forming copper oxide which is black in colour.
If you put a banana in a cupboard for a week and it turns black does that mean it is a chemical reaction?
yes, if it turns into a different colour than it is a chemical reaction. hope that helps
What kind of reaction is it when copper oxide turns to copper?
it's a physical reaction because you can get it back to copper oxide
What turns on a chemical reaction?
In a chemical reaction reactants are transformed in products.
Why does your copper wiring turn black?
Copper wiring turns black due to oxidation. It is the air reacting with the metal. Copper wiring also sometimes turns green.
Of a kettle boils and water turns to steam is it a chemical or physical reaction?
Its a chemical reaction :]
Copper turns green when exposed to the environment?
chemical
How do cars run on chemical reaction?
Your car runs on a chemical reaction because the combustion of gas is actually a chemical reaction. As the fuel turns to a spark or flame, the reaction becomes chemical
Copper turns a greenish color is it chemical or physical change?
It's a Chemical change.
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 .
What is a reversible chemical reaction for the heating of hydrated copper sulphate?
Pouring water on it because when it is heated it turns to an endothermic reaction and the hydrated part is boiled put of the compound it is then Anhydrous copper sulphate. When you add water it is hydrated again and this is an exothermic reaction. Which can get extremely hot so don't pour it on your hand and then hydrate it.
Does copper turn green by a chemical or physical change?
Chemical. It turns green because of oxidation.
Is copper when it turns green in the air a chemical change?
Yes because the copper is changing into a new substance.
