Sleeping involve some chemical reactions and physical phenomenons but I suppose that it is exaggerate to consider sleep as a chemical/physical change.
Sleeping is a natural process that allows the body and brain to rest and restore energy. While there are chemical reactions happening in the body during sleep, sleeping itself is not considered a form of chemical energy.
Burning is a chemical change.
It's a chemical change
its a chemical change
It is a chemical change.
Its a chemical change.
Burning is a chemical change.
Yes it is a chemical change because color change is an observed change that a chemical change has occurred. So you are very much right. :)
Chemical property
chemical
chemical change