No. Hydrogen gas is an element, making it a pure substance.
Heterogenous
Smoke is a heterogenous mixture of very tiny solidparticles in gas (mostly air).
Hydrogen (H) is an element. Hydrogen gas (H2) is a molecule.
Hydrogen gas is not an example of a mixture as it consists of only hydrogen molecules. It is a pure substance.
A suspension
You can separate hydrogen from a mixture of hydrogen and hydrogen chloride gas by passing the mixture through a chemical reaction chamber where the hydrogen chloride reacts with a metal such as zinc or magnesium, forming metal chloride and releasing hydrogen gas. The metal chloride can then be removed, leaving behind pure hydrogen gas.
No, argon gas is a pure substance and not a heterogeneous mixture. A heterogeneous mixture contains different substances that are visibly distinguishable, whereas argon gas is composed of only argon atoms.
Sodium chloride is a compound not a mixture.
Heterogenous mixture
Paper is heterogeneous mixture.
no, but it is a homogeneous mixture ************************ No, it is a compound.
Heterogenous