it is a pure substance.... not
Methane is a pure substance.
Helium is pure as it is on the periodic table.
Silicon is an element. Its symbol is Si.
pure substance
Mosquito repellent gel is a mixture.
pure substance, propanone
An antibacterial or a bacteriocidic substance kills bacteria.
Pure substance
it is a pure substance.... not
Methane is a pure substance.
A pure substance is the same throughout. When a substance is 100% something it is pure.
Helium is pure as it is on the periodic table.
silicon is a pure substance because it is an element and as we know an element is a pure substance
Silicon is an element. Its symbol is Si.
pure substance
pure substance