Question

30
which contains covalent bonds?
zncl₂
k₂s
co₂
nacl
types of chemical bonds
#2: covalent

Explanation:

Covalent bonds form between nonmetal atoms that share electrons. Ionic bonds form between metals and nonmetals. $\text{ZnCl}_2$, $\text{K}_2\text{S}$, and $\text{NaCl}$ all pair a metal (Zn, K, Na) with a nonmetal (Cl, S, Cl), so they have ionic bonds. $\text{CO}_2$ pairs two nonmetals (C and O), so it has covalent bonds.

Answer:

CO₂