Which of the following occurs when a large nucleus is split apart?

a)chemical reaction

b)electrolysis

c)fission

d)fusion

Iknow #2 is d. i just need to know why

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax