30 points!! please help Which of the following is a property of carbon atoms?

They are chemically inert.
They have six valence electrons.
They readily give up two electrons.
They are found in all living things.

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car