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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?
No, the banana turning black is not a chemical reaction in the traditional sense. It is a natural process called enzymatic browning, where enzymes in the banana react with oxygen in the air, causing the fruit to darken. The change in color is due to the breakdown of pigments in the banana, not a chemical reaction.
Is it a chemical reaction if you but copper in a fire and it turns black?
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
When Liquid ethyl alcohol turns into a solid when placed in a low-temperature freezer a chemical reaction?
It does but it is Not a chemical change its physical change...
After a metal object turns to dust (rust) it would have .?
Rusting of iron is a chemical process, an oxydation reaction.
What is the chemical reaction that takes place when a micro organism turns one substance into another?
The process is called metabolism.
Of a kettle boils and water turns to steam is it a chemical or physical reaction?
Its a chemical reaction :]
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
Is melting snow a chemical reaction?
yes because it turns into water
What do you call Its turns blue litmus paper to red?
Chemical Reaction
What is the chemical reaction that takes place when an microorganism turns one substance into another?
This reaction is called fermentation.
When iron is left outside in the weather it turns reddish brown What is happening What type of reaction is this?
Rusting? Oxidation reaction? Chemical reaction
Why salty water turns into ice when burned straw is dipped in it?
chemical reaction
If you put a banana in a cupboard for a week and it turns black does that mean it is a chemical reaction?
No, the banana turning black is not a chemical reaction in the traditional sense. It is a natural process called enzymatic browning, where enzymes in the banana react with oxygen in the air, causing the fruit to darken. The change in color is due to the breakdown of pigments in the banana, not a chemical reaction.
Is it a chemical reaction if you but copper in a fire and it turns black?
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
Is petrol burning a chemical reaction?
Yes, it is. The petrol turns into a gas.
What happens when iron turns into fe2 plus in a chemical reaction?
it gives two of its electrons away.
When Liquid ethyl alcohol turns into a solid when placed in a low-temperature freezer a chemical reaction?
It does but it is Not a chemical change its physical change...
