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Question 4 1 pts When a gaseous oxygen atom gains an electron O(g) + → 0"(g),...
Consider the following data for oxygen: atomic mass 15.999 g mol electronegativity 3.44 electron affinity 141....
Consider the following data for oxygen: atomic mass 15.999 g mol electronegativity 3.44 electron affinity 141. When kJ ionization energy | 1313.9 mol kJ heat of fusion mol Does the following reaction absorb or release energy? (1) 0 (g) → 0(g) + e O release absorb Can't be decided with the data given. yes Опо Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? If you answered yes to...
Question 3 1 pts Gaseous ammonia reacts with oxygen to produce nitrogen and water vapor according...
Question 3 1 pts Gaseous ammonia reacts with oxygen to produce nitrogen and water vapor according to the following thermochemicl equation: 4 NH3(g) + 3029 +2 N2(g) + 6 H20 (g); AH = -1232 kJ How much heat (kJ) is produced when 17.9 g of ammonia are reacted in excess oxygen? (3 sig figs, fill in the number ONLY!) Question 4 0.5 pts Which of the following are intensive properties? Note that there may be more than one correct choice....
Question 8 0.5 pts The electron affinity of an element is positive if energy is absorbed...
Question 8 0.5 pts The electron affinity of an element is positive if energy is absorbed during the process of accepting an electron and negative if energy is released during the process. Using the electron confguration of the atom or ion undergoing the addition of an electron, predict whether the electron affinity will be positive or negative for the following reactions, and classify them accordingly. Mg (2)+1e Mg (g) Select ] Cl(g) + 1e. → Cl. (g) [Select ] Cl-(g)+...
Please explain. 0/4 pts Question 5 Electrons exist in orbitals within an atom. Bohr's model described a single elec...
Please explain.
0/4 pts Question 5 Electrons exist in orbitals within an atom. Bohr's model described a single electron system well. But the energy level for orbitals change when as you add a second and more electron. In a single electron system, there are (a)_orbital(s) at the n-2 level. These n-2 orbital(s) exist at (b) sub-level(s) in the atom. In a multi-electron system, (c)_orbital(s) at the n-2 level. These n-2 orbital(s) exist at (d)sub-level(s) in the atom. Bohr was never...
Question 6 1 pts Dinitrogen pentoxide decomposes to nitrogen dioxide and oxygen, all species are gaseous....
Question 6 1 pts Dinitrogen pentoxide decomposes to nitrogen dioxide and oxygen, all species are gaseous. Given 19.19 g of dinitrogen pentoxide, how many grams of oxygen will be produced when the reaction goes to completion? No new data to save. Last checked at 9:15am Submit Quiz
Question 6 1 pts Dinitrogen pentoxide decomposes to nitrogen dioxide and oxygen, all species are gaseous. Given 19.19 g of dinitrogen pentoxide, how many grams of oxygen will be produced when the reaction...
05 Question (4 points) When a hydrogen atom absorbs a photon of electromagnetic radiation (EMR), the...
05 Question (4 points) When a hydrogen atom absorbs a photon of electromagnetic radiation (EMR), the internal energy of the atom increases and one or more electrons may be energized into an excited state. The release of this extra energy as the excited state electron transitions back to a lower energy state results in the emission of a photon. These energy changes are responsible for the emission spectrum of hydrogen (shown below) and are described by the Bohr equation. AE...
12:47 1 Exit Question 1 0.5 pts When 34.8 g of sodium chloride is dissolved in...
12:47 1 Exit Question 1 0.5 pts When 34.8 g of sodium chloride is dissolved in water, 2.31 kJ of energy is absorbed. Is the enthalpy of dissolution of NaCl exothermic or endothermic? Endothermic Exothermic Question 2 0.5 pts What is the balanced thermochemical equation for the combustion of two moles of gaseous acetylene, C2H2, with oxygen to produce carbon dioxide and water vapor at 24.59°C given that 2512 kJ of heat is released at a constant pressure of 1.14...
Question 4 1 pts An electron in a hydrogen atom makes a transition from the n...
Question 4 1 pts An electron in a hydrogen atom makes a transition from the n 11 to the n 4 energy state. Determine the wavelength of the emitted photon (in nm). Enter an integer.
Use the Rydbergh equation to complete the following sentence "When an electron in a hydrogen atom...
Use the Rydbergh equation to complete the following sentence "When an electron in a hydrogen atom goes from n=1 to n=4, it has _(absorbed, emitted) a(n). (Gamma, UV, Visible, IR, Microwave, or Radio Wave) photon. AE = -hcR ( m m )
Question 8 1 pts If the last electron added to an atom can be described with...
Question 8 1 pts If the last electron added to an atom can be described with quantum number as n = 4 and I = 1, which of the following is the correct electron configuration for the atom? O [Ar]4s23d104p2 [Ar]4s3d5 [Ar]4523010 [Ne]3s23p6
Consider the following data for oxygen: atomic mass 15.999 g mol electronegativity 3.44 electron affinity 141. When kJ ionization energy | 1313.9 mol kJ heat of fusion mol Does the following reaction absorb or release energy? (1) 0 (g) → 0(g) + e O release absorb Can't be decided with the data given. yes Опо Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? If you answered yes to...
Question 3 1 pts Gaseous ammonia reacts with oxygen to produce nitrogen and water vapor according to the following thermochemicl equation: 4 NH3(g) + 3029 +2 N2(g) + 6 H20 (g); AH = -1232 kJ How much heat (kJ) is produced when 17.9 g of ammonia are reacted in excess oxygen? (3 sig figs, fill in the number ONLY!) Question 4 0.5 pts Which of the following are intensive properties? Note that there may be more than one correct choice....
Question 8 0.5 pts The electron affinity of an element is positive if energy is absorbed during the process of accepting an electron and negative if energy is released during the process. Using the electron confguration of the atom or ion undergoing the addition of an electron, predict whether the electron affinity will be positive or negative for the following reactions, and classify them accordingly. Mg (2)+1e Mg (g) Select ] Cl(g) + 1e. → Cl. (g) [Select ] Cl-(g)+...
Please explain.
0/4 pts Question 5 Electrons exist in orbitals within an atom. Bohr's model described a single electron system well. But the energy level for orbitals change when as you add a second and more electron. In a single electron system, there are (a)_orbital(s) at the n-2 level. These n-2 orbital(s) exist at (b) sub-level(s) in the atom. In a multi-electron system, (c)_orbital(s) at the n-2 level. These n-2 orbital(s) exist at (d)sub-level(s) in the atom. Bohr was never...
Question 6 1 pts Dinitrogen pentoxide decomposes to nitrogen dioxide and oxygen, all species are gaseous. Given 19.19 g of dinitrogen pentoxide, how many grams of oxygen will be produced when the reaction goes to completion? No new data to save. Last checked at 9:15am Submit Quiz
Question 6 1 pts Dinitrogen pentoxide decomposes to nitrogen dioxide and oxygen, all species are gaseous. Given 19.19 g of dinitrogen pentoxide, how many grams of oxygen will be produced when the reaction...
05 Question (4 points) When a hydrogen atom absorbs a photon of electromagnetic radiation (EMR), the internal energy of the atom increases and one or more electrons may be energized into an excited state. The release of this extra energy as the excited state electron transitions back to a lower energy state results in the emission of a photon. These energy changes are responsible for the emission spectrum of hydrogen (shown below) and are described by the Bohr equation. AE...
12:47 1 Exit Question 1 0.5 pts When 34.8 g of sodium chloride is dissolved in water, 2.31 kJ of energy is absorbed. Is the enthalpy of dissolution of NaCl exothermic or endothermic? Endothermic Exothermic Question 2 0.5 pts What is the balanced thermochemical equation for the combustion of two moles of gaseous acetylene, C2H2, with oxygen to produce carbon dioxide and water vapor at 24.59°C given that 2512 kJ of heat is released at a constant pressure of 1.14...
Question 4 1 pts An electron in a hydrogen atom makes a transition from the n 11 to the n 4 energy state. Determine the wavelength of the emitted photon (in nm). Enter an integer.
Use the Rydbergh equation to complete the following sentence "When an electron in a hydrogen atom goes from n=1 to n=4, it has _(absorbed, emitted) a(n). (Gamma, UV, Visible, IR, Microwave, or Radio Wave) photon. AE = -hcR ( m m )
Question 8 1 pts If the last electron added to an atom can be described with quantum number as n = 4 and I = 1, which of the following is the correct electron configuration for the atom? O [Ar]4s23d104p2 [Ar]4s3d5 [Ar]4523010 [Ne]3s23p6
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