I don't believe it to be, considering the fact that the silicon is combined with oxygen. Pure substances to my understanding is one single element alone, and SiO is not. But I can look at it from another definition of pure substance and say that it is due to the fact that it is SiO without anything else containing it, or anything its being stored in.
CH3COOH is a pure substance. It is the chemical formula for acetic acid.
Refined substance can be a pure substance depending on the type of sugar used. If the refined sugar is white, then it is a pure substance. If it the refined sugar is brown, then it is not a pure substance.
yes butance is a pure substance and not a mixture yes butance is a pure substance and not a mixture
Caffeine is a compound and so is a pure substance.
yes
The chemical formula for silicon monoxide is SiO. It is composed of one silicon atom and one oxygen atom.
It tells you the elements and the proportions of those elements that are present to make the pure substance.
Yes, purified water is a pure substance because it consists of only water molecules with impurities removed through processes like distillation or filtration. This makes it a homogeneous mixture with a consistent composition.
Yes, if something has a chemical formula, it can generally be assumed to be a pure substance.
Propane is a pure substance, a compound with the formula C3H8
a chemical formula
Salt is a pure substance, i.e. it is an ionic compound consisting of two elements sodium and Chlorine. The formula is NaCl.