What fraction of a sample of Cs-137 will remain after 90.6 years?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

An observation that requires measurement is called quantitative observable or qualitative

Asolution is made by dissolving 2.3 moles of sodium chloride (nacl) in 0.155 kilograms of water. if the molal boiling point constant for water (kb) is 0.51 °c/m, what would be the boiling point of this solution? show all the steps taken to solve this problem.