Cooking food involves chemical changes like new substances are made, process is irreversible, and an energy occurs. An example is cooking with baking powder, the sodium hydrogencarbonate breaks down when heated and releases carbon dioxide.
The change in color indicates that a chemical reaction has taken place.
because it can't be changed back into it's normal form. the smell changes, which also tells you when a chemical change is taking place.
When fire burns logs, a chemical change is taking place. The heat from the fire causes the wood to undergo combustion, which is a chemical reaction that breaks down the wood's molecular structure and releases energy in the form of heat and light.
Yes, burning newspaper is a chemical change because it undergoes a chemical reaction (combustion) that changes its chemical composition. The heat and flame produced during burning are evidence of this chemical reaction taking place.
chemical as in chemical change, so anything changed in its chemical appearance.
...irreversible
The change in color indicates that a chemical reaction has taken place.
chemical change.
A chemical change is taking place.
A chemical reaction is; when there is a chemical change taking place from energy or shifting of molecular structure.
Because no chemical reaction is taking place. It is the same substance, just in a different state of matter.
color
Physical because no reaction is taking place.
No. It is a physical change. The chemical formula for water is H2O, and that is also the chemical formula for ice. So there is no chemical change taking place, only a change in the state of matter.
physical... the matter itself does not change. That would imply that a chemical change is taking place
The white mold growing on the strawberry indicates a biotic change as it is caused by a living organism (fungus) that is breaking down and decomposing the strawberry. This can impact the shelf life and quality of the strawberry.
because of the chemical changes taking place between the atoms involved...