Which of the following is a property of a pure substance?
olt consists of different types of compounds.
o it may have substances in different states of matter.
olt is made up of a single element or type of compound.
its components can be separated by employing physical methods.

See below.

Explanation:

It is made up of a single element or compound.

An example is the metal copper or the compound sodium chloride.

Option (c) is the correct answer.

Explanation:

A pure substance is defined as the substance that contains either same or different type of atoms which are chemically combined to each other in a fixed ratio by mass.

For example, both and are pure substances.

A pure substance can only be separated by chemical means.

So, this shows that a pure substance can be made up of same elements or different type of elements that constitute a compound.

Thus, we can conclude that a property of a pure substance is that it is made up of a single element or type of compound.

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.