ke access two computer sinultions to belier understand the reactions of frashon and . make sure your web browser he Ally expanded, Fullow the directions for A simolation, Answer the questions after completing each simulation. 1. Access the simulation for A. Start this chair reaction by moving the first neutron to collide with the firat uranium atom, Continue the reaction as the propagating neutrons become available to react with more uranium atoms Use the mumbers as a guilts 8. Aeset the simulation to repeat the activity it desired. 4. Click the "Learn More'hyperlink below the simulation Read the short passage. Fission Questions 1. Acoording to the passage, what is the equation for the nuclear fission of U-236? 2. How many neutrons are released during the fission of U.236? 3. Why do you think fission is referred to as a chain reaction? Rusion Simulation 1. Access the simulation for fusion: https://bit.h/32aCshd. 2. Drag the red point to different places along the line, Move the point from reactants to fualon and then finally products. 8. Reset the simulation to repeat the activity if desired. 4. Click the "Learn More'hyperlink below the simulation Read the short passage. Rusion Questions 1. Write the equation for the nuclear fusion of tritium and deuterium. 2. Is mass conserved during the fusion of tritium and deuterium?Explain. 8. According to the passage, why is it difficult to achieve nuclear fusion in a laboratory?

## Step 1<br />The first part of the problem involves understanding the process of nuclear fission. The question asks for the equation for the nuclear fission of U-236. The equation for the nuclear fission of U-236 is given as:<br />### \(U-236 + n \rightarrow Ba-141 + 3n + 3.5MeV\)<br />This equation shows that when a neutron (n) collides with a U-236 atom, it splits into a Barium-141 atom (Ba-141), three neutrons (3n), and releases 3.5 MeV of energy.<br /><br />## Step 2<br />The second question asks how many neutrons are released during the fission of U-236. According to the equation, three neutrons are released.<br /><br />## Step 3<br />The third question asks why fission is referred to as a chain reaction. This is because the neutrons released during the fission process can collide with other U-236 atoms, causing them to split and release more neutrons. This process continues, creating a chain reaction.<br /><br />## Step 4<br />The second part of the problem involves understanding the process of nuclear fusion. The question asks for the equation for the nuclear fusion of tritium and deuterium. The equation is given as:<br />### \(T + D \rightarrow He + n + 17.6MeV\)<br />This equation shows that when a tritium (T) atom and a deuterium (D) atom combine, they form a helium (He) atom, a neutron (n), and release 17.6 MeV of energy.<br /><br />## Step 5<br />The fifth question asks if mass is conserved during the fusion of tritium and deuterium. According to the equation, the total mass before the reaction (T + D) is equal to the total mass after the reaction (He + n), so mass is conserved.<br /><br />## Step 6<br />The sixth question asks why it is difficult to achieve nuclear fusion in a laboratory. According to the passage, it is difficult to achieve nuclear fusion in a laboratory because the conditions required for fusion to occur, such as extremely high temperatures and pressures, are difficult to replicate in a controlled environment.