Odor is a chemical property.
"Natural gas" usually refers to methane, which, as all things have both physical and chemical properties. To name a few: physically, it is an odorless, colorless gas, and chemically, it burns nicely to form carbon dioxide and water (steam).
The observation that hydrogen chloride is a gas at room temperature is a PHYSICAL property.
Methane (CH4) is a chemical compound, not a property.
Carbon dioxide (CO2) is a chemical compound consisting of one carbon atom bonded to two oxygen atoms. It is a chemical property because it describes the composition and arrangement of atoms in a substance. However, in terms of physical properties, carbon dioxide is a colorless, odorless gas at standard temperature and pressure.
Oxygen gas is neither a physical nor a chemical property. It is a state. The property of being a gas is a PHYSICAL property, however.
argon is a colorless, odorless, tasteless, gas
"Natural gas" usually refers to methane, which, as all things have both physical and chemical properties. To name a few: physically, it is an odorless, colorless gas, and chemically, it burns nicely to form carbon dioxide and water (steam).
Colorless, odorless gas. Primarily inert; reacts with Fluorine.
The observation that hydrogen chloride is a gas at room temperature is a PHYSICAL property.
colorless is physical, gas is a physical state
Chemical
Physical property
Methane (CH4) is a chemical compound, not a property.
liquid to gas formation is physical change
Carbon dioxide (CO2) is a chemical compound consisting of one carbon atom bonded to two oxygen atoms. It is a chemical property because it describes the composition and arrangement of atoms in a substance. However, in terms of physical properties, carbon dioxide is a colorless, odorless gas at standard temperature and pressure.
The fact of being a gas at room temperature is a physical property of that material, not a chemical property.
Chemical