6. CH. CH CH CH CH CH CH-CH:CH: A. what kinds of hydrocarbon is it?
B. show the structural formula
C. write its common name

This hydrocarbon is an alkane, since it only has single bonds, there are no double or triple bonds, that is why it is classified in the group of alkanes.

On the other hand, having nine carbons, it would be called nonane.

Its well-written formulas are:

Molecular: C9H18

Skeleton: attached to the file.

Explanation:

This chemical compound is poorly expressed in its developed formula since there are many hydrogens that were not drawn and must be marked, each carbon can be associated with 4 carbons, as long as the chemical bonds are simple as in the case of alkanes.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

i just learnt this recently but i need to look through my notes again