Question 1 A)Which statement is always true when nuclear fusion occurs?(1 point) Responses The total number of protons and neutrons in each nucleus remains constant. The total number of protons and neutrons in each nucleus remains constant. The number of protons in the resulting nucleus is less than in each starting nucleus. The number of protons in the resulting nucleus is less than in each starting nucleus. The combined number of protons and neutrons remains constant. The combined number of protons and neutrons remains constant. The number of protons in the resulting nucleus is double that of a starting nucleus. The number of protons in the resulting nucleus is double that of a starting nucleus. Question 2 A) Use the equation to answer the question. 21H+ 21H→ 42H+energy12H+ 12H→ 24H+energy Which statement best describes the mass numbers of the atoms in the reaction? (1 point) Responses There are two atoms with mass numbers of 1. There are two atoms with mass numbers of 1. There is one atom with a mass number of 2. There is one atom with a mass number of 2. There is one atom with a mass number of 1. There is one atom with a mass number of 1. There are two atoms with mass numbers of 2. There are two atoms with mass numbers of 2. Question 3 A)Which fact is true during a fission chain reaction?(1 point) Responses The number of freely-moving neutrons increases over time. The number of freely-moving neutrons increases over time. The total number of protons will decrease over time. The total number of protons will decrease over time. The number of freely-moving neutrons decreases over time. The number of freely-moving neutrons decreases over time. The total number of protons will increase over time. The total number of protons will increase over time. Question 4 A)A neutron strikes an atom of uranium-235 to start a fission reaction. A student expresses this situation as 01n+235 92U10n+ 92235U. Which statement describes why the expression is incorrect?(1 point) Responses A neutron should be expressed as 10n01n, not 01n10n. A neutron should be expressed as 0 to the 1th power n, not 1 to the 0 power n. The atomic number for uranium-235 is in the wrong location. The atomic number for uranium-235 is in the wrong location. A neutron should be expressed as 11H11H, not 01n10n. A neutron should be expressed as 1 to the 1th power cap h, not 1 to the 0 power n. The mass number for uranium-235 is in the wrong location. The mass number for uranium-235 is in the wrong location.

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Sure! Here are the answers to your questions based on the principles of nuclear fusion and fission:

Question 1 A)
Which statement is always true when nuclear fusion occurs?

Answer: The total number of protons and neutrons in each nucleus remains constant.
(This statement is generally true; the total nucleon number (protons + neutrons) remains conserved, although the individual numbers can change.)

Question 2 A)
Which statement best describes the mass numbers of the atoms in the reaction?

Answer: There are two atoms with mass numbers of 1.
(In the reaction \( ^2_1H + ^2_1H \rightarrow ^4_2H + \text{energy} \), both initial hydrogen nuclei have a mass number of 1.)

Question 3 A)
Which fact is true during a fission chain reaction?

Answer: The number of freely-moving neutrons increases over time.
(In a fission chain reaction, each fission event typically releases multiple neutrons, which can then cause further fission events.)

Question 4 A)
Which statement describes why the expression is incorrect?

Answer: A neutron should be expressed as \( ^1_0n \), not \( ^0_1n \).
(In nuclear notation, the mass number (1 for the neutron) goes on top, and the atomic number (0 for neutrons) goes below.)

Feel free to ask more questions if you have any!

answered by GPT-4o mini

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Question 1 A)Which statement is always true when nuclear fusion occurs?(1 point) Responses The total number of protons and neutrons in each nucleus remains constant. The total number of protons and neutrons in each nucleus remains constant. The number of protons in the resulting nucleus is less than in each starting nucleus. The number of protons in the resulting nucleus is less than in each starting nucleus. The combined number of protons and neutrons remains constant. The combined number of protons and neutrons remains constant. The number of protons in the resulting nucleus is double that of a starting nucleus. The number of protons in the resulting nucleus is double that of a starting nucleus. Question 2 A) Use the equation to answer the question. 21H+ 21H→ 42H+energy12H+ 12H→ 24H+energy Which statement best describes the mass numbers of the atoms in the reaction? (1 point) Responses There are two atoms with mass numbers of 1. There are two atoms with mass numbers of 1. There is one atom with a mass number of 2. There is one atom with a mass number of 2. There is one atom with a mass number of 1. There is one atom with a mass number of 1. There are two atoms with mass numbers of 2. There are two atoms with mass numbers of 2. Question 3 A)Which fact is true during a fission chain reaction?(1 point) Responses The number of freely-moving neutrons increases over time. The number of freely-moving neutrons increases over time. The total number of protons will decrease over time. The total number of protons will decrease over time. The number of freely-moving neutrons decreases over time. The number of freely-moving neutrons decreases over time. The total number of protons will increase over time. The total number of protons will increase over time. Question 4 A)A neutron strikes an atom of uranium-235 to start a fission reaction. A student expresses this situation as 01n+235 92U10n+ 92235U. Which statement describes why the expression is incorrect?(1 point) Responses A neutron should be expressed as 10n01n, not 01n10n. A neutron should be expressed as 0 to the 1th power n, not 1 to the 0 power n. The atomic number for uranium-235 is in the wrong location. The atomic number for uranium-235 is in the wrong location. A neutron should be expressed as 11H11H, not 01n10n. A neutron should be expressed as 1 to the 1th power cap h, not 1 to the 0 power n. The mass number for uranium-235 is in the wrong location. The mass number for uranium-235 is in the wrong location.

1 answer

Sure! Here are the answers to your questions based on the principles of nuclear fusion and fission:

Question 1 A)
Which statement is always true when nuclear fusion occurs?

Answer: The total number of protons and neutrons in each nucleus remains constant.
(This statement is generally true; the total nucleon number (protons + neutrons) remains conserved, although the individual numbers can change.)

Question 2 A)
Which statement best describes the mass numbers of the atoms in the reaction?

Answer: There are two atoms with mass numbers of 1.
(In the reaction \( ^2_1H + ^2_1H \rightarrow ^4_2H + \text{energy} \), both initial hydrogen nuclei have a mass number of 1.)

Question 3 A)
Which fact is true during a fission chain reaction?

Answer: The number of freely-moving neutrons increases over time.
(In a fission chain reaction, each fission event typically releases multiple neutrons, which can then cause further fission events.)

Question 4 A)
Which statement describes why the expression is incorrect?

Answer: A neutron should be expressed as \( ^1_0n \), not \( ^0_1n \).
(In nuclear notation, the mass number (1 for the neutron) goes on top, and the atomic number (0 for neutrons) goes below.)

Feel free to ask more questions if you have any!

GPT-4o mini · Answer