Examine the molecules. H2O HCl HF What do all three molecules have in common? All of the molecules are nonpolar compounds.
All of the molecules contain an alkaline earth metal.
All of the molecules are polar covalent compounds.
All of the molecules are diatomic.

polar

Explanation:

because interaction between them is hydrogen bonds

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

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