Question

which of the following represents a covalent molecule? select all that apply a nacl b cl₂ c bacl₂ d h₂o e o₂

Explanation:

Covalent molecules form when non - metals share electrons. NaCl is an ionic compound as it is formed by a metal (Na) and a non - metal (Cl) through electron transfer. BaCl₂ is also ionic with a metal (Ba) and non - metals (Cl). Cl₂, H₂O, and O₂ are composed of non - metals only and form covalent bonds by sharing electrons.

Answer:

b. Cl₂
d. H₂O
e. O₂