Learn to write chemical formulae. At a guess, that's intended to be hexanal.
This compound is silicon dioxide - SiO2.The oxide SiO is not yet accepted.
The compound is called sodium carbonate decahydrate.
HCl is a compound, C, O, Hg are elements
I believe that the answer is Nitrous Oxide. N is Nitrogen and O is Oxygen
The covalent compound N₂O₃ is named dinitrogen trioxide. In this name, "di-" indicates the presence of two nitrogen atoms, while "tri-" signifies three oxygen atoms in the compound. Dinitrogen trioxide is often used in various chemical applications, including as a reagent in organic synthesis.
The compound name of O-CH2-CH3 is ethyl methoxide.
Going out on a limb and trying to guess what you meant. It might be 3-pentanone.The assumptions made are that you left out the hydrogens for brevity, the compound is saturated where not otherwise specified, and the "c equals o" in the middle is intended to be a carbonyl group.
Cyclopentyl ethyl ester
The correct name for the compound N₂O₅ is dinitrogen pentoxide.
o-diethylbenzene
The formula of a compound that contains Ag, N and O is Ag(NO3). The name of the compound is silver nitrate.
2-propylpentanoic acid
The compound name of Oxygen (O), Carbon (C), and Potassium (K) would be potassium carbonate.
Water (H₂O)
Molybdenum ethanoate. Mo^(+) [ CH3C(=O)-O^-]
It is Methanamide with structure: H-(C=O)-NH2
This compound is silicon dioxide - SiO2.The oxide SiO is not yet accepted.