How many moles of silver is 8.46x10^24 atoms of silver

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

What volume of a 2.00 m stock solution of naoh is needed to prepare 150. ml of 0.40 m solution?

What does the cell nucleus do or, how does it function?