Ascientist to study in a sample of an unknown substance do scientist determine's with the substance is a metalloid with four valence electrons. which two elements could the unknown be

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.

Which statement best explains the relationship between an area is geography and the temperature of its surface water

Tell me the iupac names of the following alcohols: