Helium is pure as it is on the Periodic Table.
Neither. Helium is not a mixture at all, it is a pure substance.
No. Helium is an element, which makes it a pure substance.
Helium is an element which makes it a pure substance.
No, helium is a pure substance and an element to be more specific. It has a constant composition making it a pure substance and it is homoatomic (has only one type of atom) which makes it an element.
Yes, helium gas is considered a pure substance because it is made up of only helium atoms. It is a unique element with its own distinct chemical properties and characteristics.
Helium gas is a pure substance
Helium gas is a pure substance
Helium gas is a pure substance
Neither. Helium is not a mixture at all, it is a pure substance.
Neither. Helium is not a mixture at all, it is a pure substance.
Yes, it is a pure substance but can be mixed with other gases.
No. Helium is an element, which makes it a pure substance.
Helium is an element which makes it a pure substance.
No, helium is a pure substance and an element to be more specific. It has a constant composition making it a pure substance and it is homoatomic (has only one type of atom) which makes it an element.
Pure. (gas)
Yes, helium gas is considered a pure substance because it is made up of only helium atoms. It is a unique element with its own distinct chemical properties and characteristics.
Oxygen is an element indicating that is a pure substance.