The uranium used as nuclear fuel and in bombs has to be enriched before use. Explain what enrichment means and describe a method used to enrich uranium.
2. Describe why the mining or uranium ore often pollutes the local environment.

3. What is a breeder reactor and why is it useful to breed fissionable fuel?

answer

watching

views

For unlimited access to Homework Help, a Homework+ subscription is required.

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

Jarrod RobelLv2

17 Dec 2019

Unlock all answers

Get 1 free homework help answer.

Already have an account? Log in

Join us on Discord

Chemistry Study Group

Join now

Related questions

(a) Which of the following statements about the uranium used in nuclear reactors is or are true? (i) Natural uranium has too little ²³⁵U to be used as a fuel. (ii) ²³⁸U cannot be used as a fuel because it forms a supercritical mass too easily. (iii) To be used as fuel, uranium must be enriched so that it is more than 50% ²³⁵U in composition. (iv) The neutron-induced fission of ²³⁵U releases more neutrons per nucleus than fission of ²³⁸U. (b) Which of the following statements about the plutonium shown in the chapter-opening photograph explains why it cannot be used for nuclear power plants or nuclear weapons? (i) None of the isotopes of Pu possess the characteristics needed to support nuclear fission chain reactions. (ii) The orange glow indicates that the only radioactive decay products are heat and visible light. (iii) The particular isotope of plutonium used for RTGs is incapable of sustaining a chain reaction. (iv) Plutonium can be used as a fuel, but only after it decays to uranium.

tealworm932

7. What are essential amino acids? How are they different from non-essential amino acids? Do all organisms have the same set of essential amino acids? What role do essential amino acids play in human biochemistry?

8. How and why are protein molecules affected by the pH of their environment? How can the Henderson-Hasselbalch equation be used to tell us about the response of protein molecules to changes in pH?

9. Describe the use of affinity chromatography and explain why it is such a powerful technique for purifying proteins. Why is it more powerful than most other methods.

10. Many biological compounds could potentially exist as more than one stereoisomer, but only one steric form is used for a given function. Why is the selection of only one steric form a necessary feature of living organisms? What would happen to the protein product if an organism could randomly add either D- or L-amino acids during protein synthesis.