Which occurs in a fission reaction?  Group of answer choicesEnergy is absorbed as a less stable element forms.A new heavier element is formed and energy is released.Energy is converted into mass and forms a heavier element.The nuclei of atoms are split apart and energy is released. Flag question: Question 12Question 121 ptsOne kilogram of uranium can produce as much energy as 16,000 kilograms of coal. Why is the energy output for uranium so much greater than the energy output for coal?Group of answer choicesUranium is more highly purified than coal.Uranium is a highly reactive metal that reacts violently with oxygen when it burns.Uranium undergoes fission and nuclear reactions give off more energy than chemical reactions.Uranium is extremely radioactive and gives off more electromagnetic radiation than burning coal. Flag question: Question 13Question 131 ptsWhich occurs in a fusion reaction between two atoms?Group of answer choicesEnergy is absorbed as a less stable element forms.A new element is formed and energy is released.Energy is converted into mass and forms a heavier element.The nuclei of the atoms are split apart and energy is released.

Question 131 ptsWhich occurs in a fusion reaction between two atoms?Group of answer choicesEnergy is absorbed as a less stable element forms.A new element is formed and energy is released.Energy is converted into mass and forms a heavier element.The nuclei of the atoms are split apart and energy is released. Flag question: Question 14Question 141 ptsIn what way are nuclear fission and nuclear fusion similar?Group of answer choicesBoth processes involve the decay of nuclei of atoms.Both processes result in formation of one or more new elements.Both processes are currently used to generate electrical energy.Both processes occur naturally inside the core of a star.

In nuclear reactors, we use Uranium-235 (U-235) as our fuel. To harness its energy, we must fire neutrons at the atoms, which causes them to break apart into smaller particles. When you fire a neutron at U-235 and the U-235 nucleus splits, how many other atoms do you get?247

Which statement BEST explains why nuclear energy might be a preferred energy source over coal if uranium is considered a nonrenewable resource?A Mining uranium is associated with low hazards.B Uranium produces nuclear waste while coal does not.C Uranium produces higher carbon dioxide emissions.D A small amount of uranium produces a larger amount of energy.

Select all that applyNuclear fission differs from nuclear fusion. Select all the characteristics associated with fusion only.Multiple select question.A larger atomic nucleus is split into two or more smaller nuclei.Fusion is the primary energy-producing reaction in current nuclear reactors.Fusion is the primary energy-producing reaction in the sun.Two smaller atomic nuclei fuse into a larger nucleus.

Similarities and differences between chemical and nuclear energy sources includeGroup of answer choicesNuclear reactions release a thousand times more energy than chemical reactions.Nuclear reactions release a million times more energy than chemical reactions.Nuclear reactions release a ten times more energy than chemical reactions.Nuclear reactions release a billion times more energy than chemical reactions.