Help me ASAP Please give me some qestions for calculating number of moles eg: 9g of water
i will give brainliest please

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.

Describe the interaction that occurs between two objects with the same electrical charge.

Identify the electromagnets with poles that are reversed from the electromagnet shown above