Given that the relative atomic mass of Calcium (Ca) is 40 amu, which of the following statements is CORREct A. A Ca atom is 40 times as heavy as a carbon-12 atom. B. A Ca atom is 40 times as light as a carbon-12 atom.
C. A Ca atom is 3.33 times as heavy as a carbon-12 atom. D. A Ca atom is 3.33 times as light as a carbon-12 atom

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.

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

How many moles of gas are present if p=11 atm, v=12l, t=185k?