John has an object suspended in the air. it has a mass of 50 kilograms and is 50 meters above the ground. calculate the objects potential energy

What shape would a molecule with two bound groups and two lone pairs have?

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.

Which of the following isotopes has the same number of neutrons as phosphorus-31?