Hydrogen is a pure substance because it is an element
no its not a pure substance.
It is a solution of hydrogen chloride and water.
They are elements, so in that sense, yes, they are "pure" substances.
yes acids are pure substances. Acids aren't pure substances, however, when the acid isn't pure. For example, water could be mixed with Hydrochloric acid thus making the HCL impure.
Hydrochloric acid (HCl dissolved in water) is a homogeneous solution.
no, it is a mixture
Water is a pure substance.
No
Yes, HCl ( hydrogen chloride ) is a pure substance. In chemistry, both elements and compounds are pure substances. Hydrogen chloride is a binary compound of hydrogen and chlorine, but its properties are entirely different from that of these two elements. Also, HCl cannot be separated into hydrogen and chlorine by simple physical methods.
A pure substance is either an element or a compound.
A mixture of oil and water is a mixture, not an element. If by substance you mean not a pure substance (element or compound), then oil and water would be a substance (that is a mixture). If you mean oil and water separately, then oil is a mixture of hydrocarbons, and water is a compound (pure substance).
This substance is a compound.
Steel is an alloy- which is a compound, or intermixture. So it is not an element or pure substance.
Pure substance.
Hydrochloric acid has the chemical formula HCl. It is a compound.
its an mixture
Mixture of Hydrochloric acid (HCl) and water (H2O)
A pure substance is either an element or a compound.
It is a compound. It is made up of Cl and H
A mixture of oil and water is a mixture, not an element. If by substance you mean not a pure substance (element or compound), then oil and water would be a substance (that is a mixture). If you mean oil and water separately, then oil is a mixture of hydrocarbons, and water is a compound (pure substance).
This substance is a compound.
I think it's a mixture.
If something is not a mixture then it is a pure substance, either an element or a compound.
Steel is an alloy- which is a compound, or intermixture. So it is not an element or pure substance.
Pure substance.
It depends on the substance your are talking about. It could be a compound, mixture, or substance; depending on the substance. If it is an element off the periodic table, it is an element. If it is two elements chemmically combined, it is a compound. If it is two elements that are not chemically combined, it is a mixture.