Quicklime is prepared industrially and is fairly pure -CaO. However, strictly speaking there are always impurities present such as MgO, CaCO3, Ca(OH)2 and other trace elements.
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
I would like to know what important substances that can be made from Quicklime?
Lime Quicklime
Pure quicklime is calcium oxide, which is a compound, not a mixture. Commercially available supplies may be mixtures, as they are made from naturally occurring limestone, which may not be pure calcium carbonate. However such impure mixtures are usually pretty homogeneous.
pure substance, propanone
it is a pure substance.... not
Pure substance
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 an element. Its symbol is Si.
silicon is a pure substance because it is an element and as we know an element is a pure substance
pure substance