Sodium chloride (table salt) is a compound - NaCl.
Nitrogen is not a mixture it's an element.
Neither. Alcohol is a compound, not a mixture.
Heterogenous
carbon is an element
a burrito is a heterogenous mixture
heterogenous mixture
It's a homogenous.
It is a homogenous mixture
Mixture
Concrete is not a homogenous mixture but a heterogenous one. A homogenous mixture would be one that is completely uniform which concrete is not. A heterogenous mixture is one that is not uniform.
Heterogeneous mixture
heterogenous