60 i believe i haven't did science in a while sorry if im wrong though... ._.
B
A qualitative observation describes the characteristics of a substance without quantifying them.
Answer: A solution forms when the attractive _forces_ between the solute and solvent are _similar/higher_ in strength to the solvent-solvent and solute-solute attractions and are therefore able to replace them.
Explanation: Intermolecular forces between solute and solvent must be able to match or exceed the natural intramolecular forces between the solvent-solvent atoms/molecules and solute-solute atoms/molecules.
This is where the solubility law of 'like dissolves like (polar dissolves polar and likewise)' comes into play. Only polar compounds can form such attractive forces with fellow polar compounds and the same story goes for non-polar compounds.
B)
CH₄ + 2O₂ ---> CO₂ + 2H₂O
“relate the quantum theory to the corresponding quantum number” what is your quantum number
