If potassium (K) has a density of 0.86 g/cm3, which element would have a similar density? A.
carbon (C)

B.
neon (Ne)

C.
sodium (Na)

D.
iron (Fe)

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

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.

Why is nh3 classified as a polar molecule