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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 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?
Helium is a pure chemical element.
Is helium gas a pure substance as an element or a compound?
It is an element.
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 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 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?
Helium is a pure chemical element.
Is neon an mixture or a pure substance?
Pure. (gas)
Is ammonia NH pure substance or mixture?
It is a pure substance. It is a basic gas
Is hydrogen gas a pure substance or a mixture?
It is an element so pure substance...Roll Tide
