Physical because it is still Oxygen. A chemical change results in a chemical equation and thus a new substance. No new substance = no chemical change. Liquefaction is a physical property.
The process of burning in the presence of oxygen is that of a chemical change. It is a chemical change and not a physical change because the prodects do not have the same properties as the reactants.
I would think it to be a Physical Change. Not chemical.
Yes it is chemical because the sun is producing food by causing chemicals and substances
no rusting iron is not a physical change it is a chemical change
Chemical. The hydrogen peroxide breaks down into water and elemental oxygen. Two new substances are created.
This is a chemical change.
It is a physical change.
That would be a chemical change.
Oxygen is a chemical element, so its presence does not involve a chemical change. It undergoes physical changes such as changes in state (gas to liquid) based on temperature and pressure.
This is a chemical change.
The process of burning in the presence of oxygen is that of a chemical change. It is a chemical change and not a physical change because the prodects do not have the same properties as the reactants.
This is a chemical reaction; oxygen is released.
Oxidation is a chemical process.
This is a chemical change.
Chemical change, oxygen binds with iron.
The change of oxygen from a gas to a liquid is a physical change, as the substance itself remains the same chemically. The physical change involves altering the state of the molecules without changing their chemical composition.
Dissolving in water is a physical change.