0
What else can I help you with?
Why Heating zinc oxide is a physical change Why?
It is a physical change. I goes from white, to yellow, back to white.
Is a firework cracking a physical or chemical change?
It is a chemical change as it releases gases into the air.
Is boiling of liquid air a physical or chemical change?
Physical
Is humidifiers putting moisture into the air a physical or chemical change?
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.
Why heating copper wire in the presence of air at high temperature a chemical change Why?
Heating copper wire in the presence of air at high temperatures causes a chemical change because it leads to the oxidation of copper. When exposed to oxygen, copper reacts to form copper oxide, resulting in a new substance with different properties. This transformation involves a rearrangement of atoms and bonds, characteristic of a chemical change, as opposed to a physical change where the substance remains the same.
Is heating the air in a balloon a chemical change or a physical change?
Heating the air in a balloon is a physical change because it does not involve any chemical reactions. The heat causes the air molecules to move faster, increasing their kinetic energy and causing the balloon to expand.
Is heating air a chemical change or physical change?
between your 2 choices its physical, when air is heated molecules move more quickly
Why Heating zinc oxide is a physical change Why?
It is a physical change. I goes from white, to yellow, back to white.
Why is it heating a platinum wire in air is a physical change?
Heating a platinum wire in air is a physical change because it does not change the chemical composition of the platinum wire. The heat causes the platinum wire to expand and may change its physical appearance, but it remains chemically the same.
Is a hot air balloon a chemical change?
No, a hot air balloon involves physical changes such as heating and expanding the air inside the balloon, without involving any chemical reactions.
Is filtering air to remove dust and pollen a physical or chemical change?
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.
Is heat on cupric carbonate a chemical or physical change?
It depends on how much heat is added; for instance: Chemical change indicates a change in the chemical formula. Heating it would eventually decompose it, so it is a chemical change if you are decomposing it. A change in phase (solid-->gas) would be a physical change, so as long as the chemical formula stays the same, meaning it doesn't react with anything in the air or decompose, it would be a physical change
Is a firework cracking a physical or chemical change?
It is a chemical change as it releases gases into the air.
Is Water vapor in the air an example of a physical or chemical change?
Physical change
Is boiling of liquid air a physical or chemical change?
Physical
Is dust settling out of the air a chemical change?
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.
Is expansion of air chemical change?
No. "Chemical change" means that the bonds between atoms are rearranged.
