Please note that a "change of state" involves TWO states, not just one. Using just the three most common states of matter:
* A solid can change to a gas
* A liquid can change to a gas
* A gas can change to a liquid
* A gas can change to a solid
* A solid can change to a liquid
* A liquid can change to a solid
The first four changes in the list above involve gases.
Filtering air to remove dust and pollen is a physical change because the process does not alter the chemical composition of the dust and pollen particles. It simply separates them from the air through physical means, such as using a filter.
No, dust settling out of the air is a physical change, not a chemical change. It is a result of gravity causing the dust particles to fall out of suspension in the air without any chemical reactions occurring.
When a substance reacts with air, it typically undergoes a chemical change. This is because the interaction with air usually involves a chemical reaction where new substances are formed with different properties than the original substance.
Filtering air to remove dust and pollen is a physical change. This is because the process does not alter the chemical composition of the air or the dust/pollen particles. Instead, it simply separates the particles based on their physical properties.
The process of cream being whipped is a physical change. The cream changes from a liquid to a whipped, aerated form through physical means such as mixing and incorporating air, but its chemical composition remains the same.
Filtering air to remove dust and pollen is a physical change because the process does not alter the chemical composition of the dust and pollen particles. It simply separates them from the air through physical means, such as using a filter.
It is a chemical change as it releases gases into the air.
Physical change
Physical
No. "Chemical change" means that the bonds between atoms are rearranged.
No, dust settling out of the air is a physical change, not a chemical change. It is a result of gravity causing the dust particles to fall out of suspension in the air without any chemical reactions occurring.
When a substance reacts with air, it typically undergoes a chemical change. This is because the interaction with air usually involves a chemical reaction where new substances are formed with different properties than the original substance.
Penis
The humidifier putting moisture into the air is a physical change. It involves adding water vapor, which is a change in the physical state of water from liquid to gas, without altering the chemical composition of the water molecule.
is air expantion a chemical or physical change?
Filtering air to remove dust and pollen is a physical change. This is because the process does not alter the chemical composition of the air or the dust/pollen particles. Instead, it simply separates the particles based on their physical properties.
I would think it to be a Physical Change. Not chemical.