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.

1. Considering the difference between chemical reactions and nuclear reactions, which of the following statementsis FALSE?A. Chemical reactions release or absorb relatively small quantities of energy while nuclear reactions involvetremendous amounts of energy.B. Chemical reactions involve only electrons while nuclear reactions involve only neutrons and protons.C. Chemical reactions are affected by external factors such as pressure and temperature while nuclearreactions depend on the nature of the nucleus.D. Chemical reactions involve rearrangement of chemical bonds while nuclear reactions involve transformationof elements.2. Which of the following factors can affect the rate of a chemical reaction?A. The concentration of reactants.B. The color of the reaction mixture.C. The volume of the reaction vessel.D. The shape of the reaction container.3. Consider the reaction 2A+B→3C, which follows second-order kinetics. The initial concentrations are [A]₀ = 0.2 Mand [B]₀ = 0.3 M. After a certain time t, the concentration of C is measured to be [C] = 0.15 M. Which of thefollowing statements is correct regarding the concentrations of reactants A and B at time t?A. [A] at time t is less than 0.1 M, and [B] at time t is less than 0.2 M.B. [A] at time t is less than 0.1 M, and [B] at time t is greater than 0.2 M.C. [A] at time t is greater than 0.1 M, and [B] at time t is less than 0.2 M.D. [A] at time t is greater than 0.1 M, and [B] at time t is greater than 0.2 M.4. Study the given graph. Which region in the graph does alpha particle emission most likely occur?5. A reaction involving two reactants A and B has a total order of 2. Which of the following is likely to be the rateconstant for this reaction?A. 0.4278 M min-1B. 1.5134 M-1 s-1C. 0.0005232 yr-1D. 65.1405 M-2 s-16. Which of the following can block gamma radiation?A. shirtB. handC. a general chemistry textbookD. a slab of hollow block7. For the reaction A + B + C→ products, when the concentration of C is tripled, the concentration of B is doubled,and the concentration of A multiplied by a factor of 1/3, the rate increases by a factor of 9. Which of the followingis the correct rate law for the reaction?A. rate = [A][B][C] 3B. rate = [A][B][C]C. rate = [B]2 [C]D. rate = [A][C]38. How many neutrons are produced in the following fission reaction?23994 Pu(n,a)23692 UA. 0B. 1C. 2D. 39. Catalysts are used to speed up chemical reactions. Which of the following statements is TRUE regardingcatalysts?A. Heterogenous catalysts are generally more effective than homogenous catalysts.B. Catalysts do not change the mechanism of a reaction; they lower the activation energy of the reaction.C. The effect of a catalyst does not depend on the temperature at which the reaction is taking place.D. Catalysts are more efficient at higher concentrations of the substrate.10. A patient undergoes a series of radiographic imaging procedures in a hospital. During these procedures, thefollowing radiation doses are absorbed by different organs:• The liver absorbs 50 millisieverts (mSv) of radiation.• The brain absorbs 10 centigrays (cGy) of radiation.• The heart absorbs 100 micrograys (µGy) of radiation.Which of the following statements is correct regarding the absorbed radiation doses in these organs?A. The liver received the highest absorbed dose.B. The brain received the highest absorbed dose.C. The heart received the highest absorbed dose.D. The absorbed doses are equal, so no organ received the highest dose.

Distinguish between a nuclear reaction and a chemical reaction.

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.

Which of these is true about nuclear power?A.Nuclear fuel has a lower energy density than fossil fuels.B.The neutrons released from the reactions are used to do work.C.Nuclear power is location specific.D.Extracting energy from nuclear fuels is more expensive than extracting energy from fossil fuels.

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.