The device that creates a potential difference in an electric circuit is a (n) ?

A. Insulator

B. Voltage source

C. Conductor

D. Circuit

Why is the first ionization energy of a nonmetal much higher than that of an alkali metal in its same period?

Which unit corresponds with density?

The skin and lungs get rid of this waste? What does it het rid of?

Why do some salts dissolve spontaneously even though the process is endothermic overall?

What is the chemical formula of sulfur dioxide? A. SO B. SO2 C. SO3 D. S2O

Which property of gases allows them to be stored at high concentrations in a bottle of air freshener? What changes occur at the molecular level when ice cream melts and forms a liquid?

a gas has a volume of 6 liters and a pressure of 1.5 atm. if the container is compressed to a volume of 2 liters, what will the pressure of the gas be?

When metals react with nonmetals, an ionic compound generally results. what is the predicted general formula?

Why could the Bohr model not predict line spectra for atoms other than hydrogen?

Cryolite, Na3AlF6 (s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation. 1.) Balance the equation - AlO3 (s) + NaOH (l) + HF (g) - ->Na3AlF6+H2O (g) 2.) If 17.5 kilograms of Al2O3 (s), 51.