The more tightly or closely packed the molecule are in a substance, the _______ that substance is.
Hence, the more tightly or closely packed the molecule are in a substance, the denser that substance is.
The more tightly packed the molecules are in a substance, the _______ that substance is.
The molecules in a solid are ______ packed. (tightly/loosely)
. A molecule is the pure basic substance that cannot be split into two or more simpler substances by chemical methods.