Consider an atom of oxygen in which the nucleus contains 8 protons and 8 neutrons. If it is doubly ionized, what is the charge of the oxygen ion and how many electrons remain in the ion?

Give answer in the standard notation 48.6*0.034

Molecules of carbon dioxide are linear. What type of force exists between these molecules? A) Covalent B) dipole-dipole C) Electrostatic D) Van der Waals

Students are asked to respond to a prompt with an essay in the

What is the electron configuration of Ba (2+)

Chang works as a materials scientist for a paint manufacturer. He has developed a material that does not work well in paint, but it could have applications as a deck sealant.

When does raising the temperature of a gas increase its pressure? A. temperature B. volume C. number of particles D. pressure

Hexyne. What does the name of this hydrocarbon tell you about its molecular structure?

Which of the following processes includes all of the others? Group of answer choices transport of an ion down its electrochemical gradient osmosis passive transport facilitated diffusion

How is the Bohr atomic model different from the plum-pudding model? A. In Bohr's model, the atom's mass is found at its center instead of distributed throughout. B. In Bohr's model, the atom's mass is mostly made up of electrons instead of protons.

What does the cell theory state? A. that cells come from other cells B. that cells come only from animals C. that cells cannot be created or destroyed