Select the correct answer.

if two half-lives have passed since a scientist collected a 1.00-gram sample of u-235, how much u-235 is left now?

What is the strongest intermolecular force between an nacl unit and an h2o molecule together in a solution? covalent bonding dipole-dipole force hydrogen bonding ion-dipole force

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?