How much heat is need to boil 120 kg of water

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.

The ability to make things happen is also called a. heat b. force c. matter d. energy