Question

identify the substances that contain discrete molecules. check all that apply. ch4 rbcl bf3 bacl2 sro none of the above

Explanation:

Discrete molecules are held together by covalent bonds. $CH_4$ (methane) and $BF_3$ (boron trifluoride) are covalent compounds with discrete molecules. Ionic compounds like $RbCl$, $BaCl_2$, and $SrO$ are composed of ions in a lattice - not discrete molecules.

Answer:

A. $CH_4$
C. $BF_3$