1pt A sulfur atom contains 16 protons and 16 electrons. What must occur for this sulfur atom to become a sulfur ion with a charge of 2-? O A. It must lose two electrons.
OB. Nothing. It already has a charge of 2-
O C. It must gain two electrons.
OD. It must lose two protons.

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.

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at