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a) Define mass defect. a. the difference in mass between the nucleus of an atom and...
A sample of charred animal bones found in a cave has a carbon-14 decay rate of...
A sample of charred animal bones found in a cave has a carbon-14 decay rate of 5.2 disintegrations per minute per gram of carbon (5.2 dis/min-g C). Living organisms have a decay rate of 15.3 dis/min-g C. The half-life of carbon-14 is 5715 yr. How old is the bone sample? (All radioactive elements decay according to first order kinetics.) a)2.8 x 10 3 yrs b)3.9 x 10 3 yrs c)1.9 x 10 3 yrs d)8.9 x 10 3 yrs
(1). Beta decay of ^60 Co produces a beta particle and--------------(a) , ^60 Fe, (b), ^59...
(1). Beta decay of ^60 Co produces a beta particle and--------------(a) , ^60 Fe, (b), ^59 Co. (c) ^56 Mn. (d) ,^60Ni. (2) identify the part of the body that can be studied with radiotracers.(a) tumors. (b) brain (c) speleen (d) heart, (e) all of the above.(3) ,Determine the identity of the daughter nuclide from the alpha decay of X.(a)X Ac ,(b) X PO, (c) X Rn .(d) X Th, (e) X Fr.(4) Which of the following statements is True?...
1.Describe what happens to a carbon-11 atom when it undergoes positron emission. The decay of a...
1.Describe what happens to a carbon-11 atom when it undergoes
positron emission.
The decay of a carbon-11 atom _____(options;changes a nuetron
into proton, changes proton into neutron, is hit with a neutron,
reconfigures its protons and neutrons) and this causes it to
emit______(options; a negatively charged electron sized particle, a
positively charged electron sized partticle, two atoms and several
neutrons, two neutrons and two protons)
2.An atom undergoes radioactive decay according to this
equation:
___.
What is the identity of...
1. (3 points) Complete each of the following reactions. a. 0Fe decays through negatron emission, what...
1. (3 points) Complete each of the following reactions. a. 0Fe decays through negatron emission, what is the resulting nuclide? b. Positron emission of 3015P produces what nuclide? 2a c. 15W + 2. (3 points) Predict the decay for each of the radioactive isotopes below AND determine the resulting nuclide after the decay. a. 502V b. 2410Ne c. 210sPo 3. (1 points) The half-life for "0K is 1.3 x 10° years. What percent of the original remains after 6.5 x...
1) Which statement concerning the structure of the atom is correct A) Protons and Neutrons have...
1) Which statement concerning the structure of the atom is correct A) Protons and Neutrons have most of the mass and occupy C) Electron have most of the mass and occupy very little of the volume of the atom B) Electron have most of the mass and occupy most of the volume of the atom most of the volwne of D) Protons and Neutrons have most of the mass but occupy very little of the volume of the atom 2)...
A) You will investigate the PP-I chain leading to the formation of helium and energy from the fus...
A) You will investigate the PP-I chain leading to the formation of helium and energy from the fusion of 1) Demonstrate that I u of mass (1/12)mC, atom) has an equivalent rest mass of answers Qi, Q2, and Qs in MeV. Be careful with Qi-beware of the leptons! hydrogen in the cores of lower mass main sequence stars such as our Sun. 931.4940954 MeV/c (match at least the first 4 digits past decimal) Calculate the Q value for each step...
if you can't answer all ,please don't answer 1) of the reactions below, which one is...
if you can't answer all ,please don't answer
1) of the reactions below, which one is a decomposition reaction? A) Ca(NO3)2 + Na2S -- CdS +2NaNO3 B) NH4Cl- NH3 + HCI C) 2Mg + 02 - 2MgO D) 2N2 + 3H2 → 2NH3 E) 2CH4 + 402 - 2002 + 4H20 miches of - x 1? 2 2) Calculate the percentage by mass of ammonia in cisplatin, PtCl2/NH3 12. A) 12.53 B) 5.68 C) 18.09 D) 11.35 E) 4.67 3)...
only questions number: #3,6,8,16,19,22 Δι CH 122 - Practice Problems for Chapter 12 Do NOT use...
only questions number: #3,6,8,16,19,22
Δι CH 122 - Practice Problems for Chapter 12 Do NOT use this problem set solely as test preparation. This problem set does NOT cover everything that we have discussed in class. You will still need to study class materials in order to do well on the learning assessment. 1. Of the following all are valid units for a reaction rate except A. moll B. M/S C. molhr D.g's E.molle 2. Which one of the following...
126% Zeam +. Add Page View Insert Table Chart Text Shape Media Comment Collaborate Format Document...
126% Zeam +. Add Page View Insert Table Chart Text Shape Media Comment Collaborate Format Document Text 3/24/20 -3/30/20 Record Keeper: Body* Update 1. Determine the concentrations you would use in order to find the rate law for a given reaction. Style Layout More a. Here is one set of conditions fill out the rest of the table with enough sets of conditions to determine the rate law for the reaction: Font A+B >C+D Times New Roman Al mol:L [Bmol:...
conversion factors needed: molar masses of O, and Ho, and molar ratio between Ozand Ho. Molar mass Oz: 2 x 16.00 g/...
conversion factors needed: molar masses of O, and Ho, and molar ratio between Ozand Ho. Molar mass Oz: 2 x 16.00 g/mol = 32.00 g/mol Molar mass HO: (2x 1,01 g/mol)*16.00 /mol 7HO-1.5 80xmor 2 mol No1802 1,0 52.00 gomolo 1 .689 = 1.7 HO Now let's try some problems Be sure to give your answers with the correct number of significant figures. 1. Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs,...
1.Describe what happens to a carbon-11 atom when it undergoes
positron emission.
The decay of a carbon-11 atom _____(options;changes a nuetron
into proton, changes proton into neutron, is hit with a neutron,
reconfigures its protons and neutrons) and this causes it to
emit______(options; a negatively charged electron sized particle, a
positively charged electron sized partticle, two atoms and several
neutrons, two neutrons and two protons)
2.An atom undergoes radioactive decay according to this
equation:
___.
What is the identity of...
1. (3 points) Complete each of the following reactions. a. 0Fe decays through negatron emission, what is the resulting nuclide? b. Positron emission of 3015P produces what nuclide? 2a c. 15W + 2. (3 points) Predict the decay for each of the radioactive isotopes below AND determine the resulting nuclide after the decay. a. 502V b. 2410Ne c. 210sPo 3. (1 points) The half-life for "0K is 1.3 x 10° years. What percent of the original remains after 6.5 x...
1) Which statement concerning the structure of the atom is correct A) Protons and Neutrons have most of the mass and occupy C) Electron have most of the mass and occupy very little of the volume of the atom B) Electron have most of the mass and occupy most of the volume of the atom most of the volwne of D) Protons and Neutrons have most of the mass but occupy very little of the volume of the atom 2)...
A) You will investigate the PP-I chain leading to the formation of helium and energy from the fusion of 1) Demonstrate that I u of mass (1/12)mC, atom) has an equivalent rest mass of answers Qi, Q2, and Qs in MeV. Be careful with Qi-beware of the leptons! hydrogen in the cores of lower mass main sequence stars such as our Sun. 931.4940954 MeV/c (match at least the first 4 digits past decimal) Calculate the Q value for each step...
if you can't answer all ,please don't answer
1) of the reactions below, which one is a decomposition reaction? A) Ca(NO3)2 + Na2S -- CdS +2NaNO3 B) NH4Cl- NH3 + HCI C) 2Mg + 02 - 2MgO D) 2N2 + 3H2 → 2NH3 E) 2CH4 + 402 - 2002 + 4H20 miches of - x 1? 2 2) Calculate the percentage by mass of ammonia in cisplatin, PtCl2/NH3 12. A) 12.53 B) 5.68 C) 18.09 D) 11.35 E) 4.67 3)...
only questions number: #3,6,8,16,19,22
Δι CH 122 - Practice Problems for Chapter 12 Do NOT use this problem set solely as test preparation. This problem set does NOT cover everything that we have discussed in class. You will still need to study class materials in order to do well on the learning assessment. 1. Of the following all are valid units for a reaction rate except A. moll B. M/S C. molhr D.g's E.molle 2. Which one of the following...
126% Zeam +. Add Page View Insert Table Chart Text Shape Media Comment Collaborate Format Document Text 3/24/20 -3/30/20 Record Keeper: Body* Update 1. Determine the concentrations you would use in order to find the rate law for a given reaction. Style Layout More a. Here is one set of conditions fill out the rest of the table with enough sets of conditions to determine the rate law for the reaction: Font A+B >C+D Times New Roman Al mol:L [Bmol:...
conversion factors needed: molar masses of O, and Ho, and molar ratio between Ozand Ho. Molar mass Oz: 2 x 16.00 g/mol = 32.00 g/mol Molar mass HO: (2x 1,01 g/mol)*16.00 /mol 7HO-1.5 80xmor 2 mol No1802 1,0 52.00 gomolo 1 .689 = 1.7 HO Now let's try some problems Be sure to give your answers with the correct number of significant figures. 1. Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs,...
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IN PYTHON ONLY !! Program 2: Re-work
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