Rust is an iron oxide.
A compound is a pure substance.
If this compound is refined can be classified as a pure substance.
A pure substance is an element or a compound.
Toluene is a pure substance because it is a single compound with a uniform chemical composition throughout.
Carbon dioxide (CO2) is a compound and can be also a pure substance.
pure substance...since it is NaCl...a compound..
Yes,elements and compounds are pure substance.
Pure sugar is a substance (compound).
It is a pure substance as well as a compound
Caffeine is a compound and so is a pure substance.
No. A compound is a pure substance.
A pure substance is classified by having a definite and constant composition. The substance can be either an element or a compound, but what makes the substance pure, is that it does not vary.