Stanley Miller and Harold Urey performed an experiment by recreating in the laboratory the probable conditions of the atmosphere of the primitive earth.(i) What was the aim of the experiment?(ii) In what forms was the energy supplied for chemical reactions to occur?(III) For how long was the experiment run continuously? Name two products formed.

Q: BIOCHEMISTRY Does a hand warming product that is worn inside the gloves undergo a chemical…

A: Yes, many gloves-worn hand warming products release thermal energy and warmth through a chemical…

Q: What Form of energy is present in UV radiation ?

A: Ultraviolet radiation or UV radiation:It can be defined as the light in the range of wavelengths…

Q: How many half-lives would have to elapse for a sample of a radioactive isotope to decrease from an…

A: Half-life is the interval of time required for one-half of the atomic nuclei of a radioactive sample…

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Q: What were the earliest energy-harnessing reactions?

A: To find: The earliest energy-harnessing reactions

Q: Which type of radiation is most likely to be used for isotope scanning?(a) alpha(b) beta(c) gamma

A: A radionuclide scan is an imaging method that utilizes a little dose of a radioactive chemical…

Q: What does it mean when we say that strontium-90, a waste product of nuclear power plants, has a…

A: Half-life (t1/2) is the time required for a quantity to reduce to half of its initial value.

Q: When electromagnetic energy is absorbed, it can be converted to which of the following? Group of…

A: Depending on the kind of atom and the amount of energy, this electromagnetic radiation can take the…

Q: In one form of nuclear decay, a neutronbreaks down into a proton and electron andemits a gamma ray.…

A: Anabolic reactions are reactions of the metabolic pathway that carry out building up processes.…

Q: Enzymes are organic catalysts that (a) alter the direction in which a chemical reaction proceeds,…

A: An enzyme refers to a protein that is produced by living cells. It is highly specific to the…

Q: Question 20 The amount of energy needed to break the bonds of the reactants is called A) activation…

A: 20) All reactions require some sort of energy to initiate a chemical change. The energy required to…

Q: What is the unknown isotope in the following fission reaction: n + 235U → 131I + ? + 3nA. 86Rb…

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Q: What are radioisotopes?

A: Answer: Introduction: Nuclear reactors are best-suited to making neutron-rich radioisotopes, such as…

Q: Why are many reactions that occur in living systems irreversible for all intents and purposes?

A: A chemical reaction is a process by which a substance is converted into another substance that has a…

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A: 1.(a) False. The spontaneity of a process refers to whether it can occur without the input of…

Q: What are the six common types of reactions seen in biochemistry?

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Q: The half-life of 1311 is 8.04 days. (a) Convert the half-life to seconds. (b) Calculate the decay…

A: Given Values: Half-Life of I131 = 8.02 days *Only the first three sub-parts are answered.

Q: How X rays, gamma rays, and cosmic rays are more energetic than UV radiation ?

A: Electromagnetic radiation or rays are created due to periodic changes in a magnetic field or…

Q: What naturally occurring elements might have spurred the first reactions that led to life?

A: The life on earth began at least 3.8 billion years ago. Life is generally has three functions-…

Q: How can a nucleus emit an electron during B decay when there are no electrons present in the nucleus…

A: Decomposition of neutron to yield an electron and a protein is called as β emission. This process…

Q: The following comments were overheard at the department holiday party. Which of them is NOT a…

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Q: Why do catalysts not alter the amounts of reactants and products present at equilibrium?

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Q: Question 9 Identify on the structure below: a) An alpha helix b) A beta sheet c) A loop

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Q: How can we predict what reactions will happen in living cells?

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A: Temperature can be expressed in kelvins and degrees Celsius. So, in the Celsius scale, temperature…

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A: The half-life life of the uranium-238 takes 4.5×109 years to decay to form the thorium-234.

Q: What is chemical reaction

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Q: Why is the entropy of a system dependent on temperature?

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Q: What characteristic of uranium-235 fission causes a chain reaction?

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Q: How can weak forces, such as hydrogen bonds, have significant effects in organisms?

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Q: le.com/document/d/1aV35WZHe72GRC05NgDa6otm70ZIPIBC-T2NiT7IwmOU/edit Chemical Reactions Tools Add-ons…

A: Introduction : In the given question, a chart has been provided containing three important enzymes-…

Microbes

Microbes are microscopic living organisms that can only be detected with the help of specialized laboratory equipment called a microscope. These living organisms are so small that they are not visible to the naked eye.