Compare the mass of an ice cube to the mass of the water once the cube is completely melted.
a) the mass of water formed equals the mass of ice.
b) the mass of water formed is more than the mass of ice.
c) the mass of water formed is less than the mass of ice.
d) the mass of water formed does not depend on the mass of ice.

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

Will give ! what are the advantages and disadvantages of nuclear power? check all that apply. one advantage of nuclear energy is that it does not produce carbon dioxide emissions. storage of nuclear waste is a short-term problem associated with nuclear energy. the problem with uranium mining is that a large quantity of uranium must be extracted to meet energy needs because the energy release from uranium fission is so low. safe operation of a nuclear power plant can be jeopardized by a human mistake.

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?