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Is helium gas a pure substance or mixture?
Helium is pure as it is on the periodic table.
Is helium a pure substance or a homogeneous or heterogeneous mixture?
Helium is an element which makes it a pure substance.
Is helium gas a pure substance as an element or a compound?
It is an element.
Is helium gas a mixture?
No. Helium is an element, which makes it a pure substance.
Is helium gas a homogeneous mixture or a heterogeneous mixture?
Neither. Helium is not a mixture at all, it is a pure substance.
Is helium gas a pure substance or mixture?
Helium is pure as it is on the periodic table.
Is helium gas a mixture or substance?
Helium gas is a pure substance
Is helium gas substance or mixture?
Helium gas is a pure substance
Is helium gas mixture or pure substances?
Helium gas is a pure substance
Is helium a pure substance or a homogeneous or heterogeneous mixture?
Helium is an element which makes it a pure substance.
Is helium a mixture or a pure substance?
Yes, it is a pure substance but can be mixed with other gases.
Is helium gas a pure substance as an element or a compound?
It is an element.
Is helium gas a mixture?
No. Helium is an element, which makes it a pure substance.
Is helium gas a homogeneous mixture or heterogeneous mixture?
Neither. Helium is not a mixture at all, it is a pure substance.
Is helium gas a homogeneous mixture or a heterogeneous mixture?
Neither. Helium is not a mixture at all, it is a pure substance.
Is helium is pure or mixture?
Helium is a pure substance
Is helium physical or chemical property?
Helium is an element a pure substance it is a chemical. It has properties eg it is a gas, it is colourless, it is odourless
