Which of the following elements has the lowest ionization energy? Na

C

F

He

Rb

Apound is approximately 0.45 kilogram. a persons weighs 87 kilograms. what is the persons’s weight, in pounds, when expressed to the correct number of significant figures

Select the correct answer. wax is a nonpolar substance. in which type of substance is it the most soluble?

How can liquids be seperated by density a the liquids are absorbed onto a paper b the liquids are turned into seperate vapors c the liquids are collected as they evaporate d the liquids are allowed to seperate into layers