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Well just to start off nothing can ever be a physical and chemical change it has to be one or the other.. and the best way to know which one it is is a physical change doesnt change the substance and a chemical change will change the substance into something else. So milk going sour would be chemical because it isnt regular milk anymore its sour milk. but if it was something like evaporating water then it would be physical because its still water its just in the gas state. -Hope that helps(:
What else can I help you with?
What is a physical change Milk becomes sour an iron nail rusts?
A physical change refers to a change in appearance or state that does not alter the chemical composition of the substance. When milk sours, it undergoes a physical change because its appearance and taste change, but the molecules remain the same. Similarly, when an iron nail rusts, it is a physical change because the iron's appearance changes as it forms rust, but the chemical composition of the iron is not altered.
Is the melting of ice a chemical change or a physical change?
its both a chemical change and a physical change.
Is burning a fire a physical or chemical change?
Burning is a chemical change.
Is bleaching your hair a physical change or a chemical change?
It is both a physical and chemical change.
Is Mixing drink mix into water physical change or chemical change?
both chemical and physical
Is digestion of a candy bar a physical change or chemical change?
Chemical property
What part of earths surface involves both chemical and physical change?
what involves both chemical and physical change on earths surface
Is oxidizing Mercury physical or chemical change?
Both. A chemical reaction occurs & a physical change is noticeable.
Is Hg a physical or chemical change?
Hg is not a change, it is an element. It can undergo changes, both physical and chemical.
What can be used as an indicator fot a physical change and a chemical change?
A temperature change can be seen both in physical and chemical changes.
Is growth of child is which type of change physical or chemical?
phisiological change,its not a physical or chemical change
Is supernova chemical or physical change?
Both.
