I have a feeling that #2 is the one.
The substance that is being dissolved is called the solute and the substance that does the dissolving is called the solvent. So the solvent dissolves in the solute the forming a solution.
Answer is natural selection
Answer is: B an ionic bond because the Cl atom pulls electrons off the Cs atom resulting in a positive ion and negative ion that are attracted to each other.
Ceasium is alkaline metal, with low electronegativity, which means it easily gives one electron, and forms positive cation and chlorine is nonmetal, with high electronegativity, it gains electron and forms negative anion.
