Some indicators of a chemical reaction are:
- change of color
- change of odor
- release of a gas
- change of the temperature
- change of the viscosity
- formation of a precipitate
- change of general appearance
- possible explosion
- possible chemiluminiscence
- formation of new compounds
One well-defined example of a chemical change is the rusting of iron. This process involves the reaction of iron with oxygen in the presence of water, leading to the formation of iron oxide (rust), which has different chemical properties than iron.
a process that does not change the chemical composition of a substance. A change in a substance with no new substances being formed
This would be defined as a physical change. In chemistry, this would be defined as anything from a change in mass or volume to a change in state (solid, liquid, gas). As long as the substance does not change in molecular structure, it is mostly a physical change. Common indicators of a chemical change is change in color, production of light, production of extensive heat, production of uncommon smells, or even bubbling.
The statement is false: A chemical change of a substance is defined as a change in which the substance is not the same substance after the change as it was before.
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