No. Air is a mixture of gases, predominantly nitrogen and oxygen but also including carbon dioxide, water vapor, and noble gases.
Molecule, or atom in the case of a pure elemental substance.
elemental copper
No. By definition an element is not a mixture.
Yes,it is a pure substance but can be mixed with other gases. Like a fart. Har har har
No, H2O is a molecular compound because it contains two types of atoms. A pure element has only the atom by itself, or combined with another atom of itself, such as H2, Cl2, I2.
Yes, elemental copper is considered a pure substance because it consists entirely of copper atoms and does not contain any other elements or compounds. In its pure form, it has a consistent composition and specific properties, such as conductivity and malleability. However, copper can be found in various alloys or compounds, which would not be classified as pure substances.
No. Air is not pure substance. Air has all dust and dangerous gases with it. From place to place its composition changes.
As per my knowledge pure substance does not have anything else added to it. Air and water are pure substances that exist in nature. A pure substance cannot be taken apart to locate more substances.
Compound, no group 2 or group 1 (except H if its considered) exist in elemental form naturally.
No. To start with, air is not a pure substance, and mixiong it with something else just makes it worse.
Air is a mixture.
Neon (Ne), often represented as NE2 in certain contexts, is a noble gas and is considered a pure substance when in its elemental form. A pure substance consists of only one type of particle, and neon is made up entirely of neon atoms. However, if NE2 refers to a compound or a mixture, then it would not be classified as a pure substance.