8. Thermochemistry

A radioactive particle weighing 7.20 x 10³ ng is found 110 m above the earth's surface. What is its potential energy?

What must be added to water in order to change state from liquid to a gas?

What happens to the molecules that make up a chocolate chip as it is heated in the oven?

The energy stored in the chemical bonds of fossil fuels is a form of __________ energy.

Which would most likely cause an increase in the energy of water molecules in liquid water?