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Only a substance can be categorized as an element, a compound, or a mixture. An ink pen is not a substance, it is an implement.Added:The 'ink' (IN a pen) is definitely a mixture,not an element or pure compound.
Seawater is a mixture - a compound is a chemically bonded substance involving more than one element.
No, carbon is not a heterogeneous mixture. It is not a mixture because it is an element. The term heterogeneous can only be applied to mixtures.
A substance can be an element, a compound or a mixture. Sodium is a substance and also an element. It is a substance but consisting of only one type of atom. Sodium Chloride is a substance and also a compound. It is a substance but consists of two elements chemically combined and is thus also a compound. Sodium chloride and sand mixed together is a substance and also a mixture.
You get a mixture of an element and a compound.
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.
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.
Only a substance can be categorized as an element, a compound, or a mixture. An ink pen is not a substance, it is an implement.Added:The 'ink' (IN a pen) is definitely a mixture,not an element or pure compound.
Pure sugar is a substance (compound).
yes
Barium is an element from the periodic table therefore it is neither a mixture or a compound