Neither. Air is a mixture.
Also, whether something is a compound or an element does not depend on temperature.
Sulfur is a chemical compound that is a yellow solid at room temperature and 1 atm.
Neon is a chemical element not a property.
Helium is gaseous but it is not a mixture - it is a chemical element.
no. it is an element and will be homogeneous
Copper nitrate is a chemical compound and not a state like a U.S. state. It is a solid compound at room temperature.
NaHCO3 , sodium bicarbonate, is a compound. It is a solid at Room temperature, since it is ionic. The elements in sodium bicarbonate are: Sodium(Na), Hydrogen(H), Carbon (C) and Oxygen (O).
Hydrogen is a chemical element, gas at room temperature, having a diatomic molecule.
Sulfur is a chemical compound that is a yellow solid at room temperature and 1 atm.
metallic element liquid at room temperature
Mercury is an element. It has chemical symbol Hg. It is the only metal that is liquid at room temperature, and very toxic.
Chlorine (chemical symbol Cl) is an element. The molecular formula for chlorine as a gas is Cl2. It is not a compound because it's just one element; compounds have two or more elements chemically combined.
Mercury (Mg) is an element. It is a liquid metal at room temperature.
The word 'iodine' can refer to either the corrosive and poisonous chemical element of the halogen group or a solution of this element mixed with alcohol. The solution is commonly used as a mild antiseptic.
Neon is a chemical element not a property.
Helium is gaseous but it is not a mixture - it is a chemical element.
Silicon is an element. It is not usually found as silicon but as a compound that makes up quartz.There is often a confusion with silicone which is a synthetic substance made up of silicon, oxygen and other elements, mostly carbon and hydrogen. Silicone is generally a liquid or a flexible, rubberlike plastic and it is often used in shampoo.
Iodine is an element, not a compound or mixture. It is a non-metal that exists as a solid at room temperature and is commonly used in iodized salt for nutritional purposes.