Of the three states of matter, molecules are moving the fastest and are the farthest apart in a what?

Which substances have the lowest melting points: ionic covalent, or metallic

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.