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How do you know weather curdling of milk is a chemical reaction?
Wiki User
∙ 15y ago
It is never milk again. It will just be churds and whey it will never change back. It changes the substances identity.
Wiki User
∙ 15y ago
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Is curdling of milk physical or chemical?
Chemical. It's a reaction with oxygen. If it were physical it would be fairly easy to undo...If you work out how to uncurdle milk then please let me know!
Is paint bubbling a chemical reaction?
yes ............... paint bubbling is a chemical reaction. when anything bubbles you know there is a chemical reaction.
An amtom undergoes a reaction ant attains a more stable from how do you know is it was chemical or nuclear reaction?
If an atom undergoes a reaction and attains a more stable form, you know if the reaction was a chemical reaction or a nuclear reaction by studying what exactly happened to the atom.
When hydrochloric acid is mixed with calcium is that a chemical or a physical reaction?
chemical how do you know?
Is picking up iron filings with a magnet a chemical reaction?
No, a chemical reaction is when the atoms are not mixed together but chemical bonded together. You know when a chemical reaction has happened when you can smell, hear or see things reacting.
What are the five ways to know that chemical reaction happened?
don't know
What is chemical reaction of patis?
i dont know .. I am sorry :)
How we know a chemical change has occurred when burning a candle?
Burning is a chemical reaction, an oxydation.
How can you know this is a chemical reaction?
Evidence of a chemical reaction include the following: formation of a precipitate formation of a gas change in temperature change in color
Does energy change in a chemical reaction?
yes it does i didnt know that at first but it does
What can be evidence of a chemical reaction?
Generally, you know a chemical reaction has occured if there is a change in temperature, a change in color, a formation of a gas (bubbles), or any kind of flame.
How do bears know when to hibernate?
Usually when the weather gets cold, they are triggered to hibernate. That's the most logical reason anyway. It may have to do with a some sort of chemical reaction the cold weather does, but most likely it's just an instinct. :) Hope this helps! :) Isabella246 :D
