When chemical change has occurred, it means that the object has become something that it will be forever until changed again. For example, when you burn paper, it has become something new, a new substance. That paper has become ashes and will never be paper again.
If you mean a change in chemical identity, that would be a chemical change.
Evidence of a chemical change refers to observable signs that a chemical reaction has occurred. This can include color change, formation of gas or precipitate, temperature change, or production of light. These changes indicate that the substances involved in the reaction have undergone a chemical transformation at the molecular level.
no, that's would be a chemical change :) .
No, mixing sugar and chocolate is not a chemical change. It's a physical change.
This is a physical change. You only change the shape and size of an apple by slicing it. Chemical changes would mean changing the molecular composition of the apple.
If you mean ground flour, then no. Grinding flour is a physical change because there is no change in chemical composition.
A level shift
It's a chemical change. A chemical change is any change that causes a substance to change into another substance. A sign to know whether it's a chemical change or not, are the changes in odor. When something decays the change in smell is very powerful. Therefore, it is a chemical change.
This question is extremely general (no offense) but if by you mean "see stuff" you mean producing a new substance, then yes, it is a chemical change.
A physical change is reversible if the substance can return to its original state after the change has occurred. This means that the change does not alter the chemical composition of the substance, allowing it to be reversed through processes like melting, freezing, or evaporation.
No.
A chemical change has taken place