Amolecule with the formula c18h36o2 is probably a?

Fatty acid.

Explanation:

Hello,

In this case, based on the given formula, it is possible to infer that the O₂ at the end, accounts for the presence of a carboxyl group (first attached picture), characteristic of carboxylic acids. Moreover, long-chained carboxylic acids are considered as fatty acids due to their high nonpolarity and hydrophobicity, therefore, the molecule with such formula probably a fatty acid, more precisely, stearic acid (second attached picture).

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the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

it should be all of them because it asks if you included all of those in your answer

explanation: