Which of the following compounds does not contain molecules?
o co2
он2
o naci
oh20

Explanation:

NaCl does not contain molecules

NaCl does not contain molecules. NaCl is an ionic compound which is composed ions( Na+ and Cl-) that are attracted to each other because of their opposite charges. The chemical formula representation of an ionic compound is called a formula unit. Molecular compounds are covalent compounds which are made up of atoms sharing some of their valence electrons for stability.

Further Explanation:

Ionic Compounds

Covalent Compounds

Among the choices only NaCl is an ionic compound:

CO2 - carbon, C (non-metal) ; oxygen, O (non-metal) --> COVALENT

H2 - hydrogen, H (non-metal) --> COVALENT

NaCl - sodium, Na (metal) ; chlorine, Cl (non-metal) --> IONIC

H2O - hydrogen, H (non-metal); oxygen, O (non-metal) --> COVALENT

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Keywords: ionic compound, covalent compounds, molecule

its first and third is your answer i did the qustion the fourth isnt right

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