Answer: C5H12
Explanation: The boiling point is the temperature at which the substance will change from the liquid to the phase gas, so compounds with weaker intermolecular forces will have lower boiling points. Since all of these options are nonpolar, they’re only intermolecular forces are dispersion forces, which are smaller for compounds with fewer electrons. Of these options, C5 H 12 has the fewest electrons, so it has the weakest intermolecular forces, and therefore the lowest boiling point.
Draw (on paper) a Lewis diagram for CH3CH2CH2OH.
Use your diagram to answer the following questions.
The number of C-H bonds =
The number of O-H bonds is
The number of C-C single bonds =
The number of C-O single bonds = =
The total number of lone pairs = =
Lewis diagram for CH3CH2CH2OH.
Lewis diagram for CH3CH2CH2OH
The number of C-H bonds=7
The number of O-H bonds=1
The number of C-C single bonds=2
The number of C-O single bonds=1
The total number of lone pairs=2 ( on O atom)
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lewis structure of CH3CH2CH2OH is
The number of C-H bonds = 7, The number of O-H bonds is 1, The number of C-C single bonds = 2, The number of C-O single bonds = 1, The total number of lone pairs = 2.
1-propanol, also known as propyl alcohol or n-propanol, is a primary alcohol with a molecular formula of C3H8O. It is a colorless liquid that is widely used as a solvent and a cleaning agent. It is also used in the production of acrylates and esters which are used in the manufacturing of various products such as paints, adhesives, and resins. It has a characteristic alcohol odor and is slightly less dense than water. Additionally, it has some medicinal applications, it is used as an antiseptic and disinfectant, it is also a central nervous system depressant, however, it should be handled with caution as it is flammable and can cause eye and skin irritation.
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Pb(NO3)4+2 Li₂SO4
1. How many grams of lithium nitrate will be needed to make 350.00 grams of lithium sulfato
Pb(SO4)2 + 4 LINO3
The amount of lithium nitrate that will be needed to make 350.00 grams of lithium sulfate is equal to 438.84 g.
What is a limiting reagent?A limiting reagent can be demonstrated as the reactant in the reaction which is exhausted first while the completion of a chemical reaction.
The limiting reagent in a particular reaction decides the yield of the product whenever the reactants will not be taken in stoichiometry.
Given, chemical reaction of lithium nitrate and lead sulfate is:
Pb(SO₄)₂ + 4 LINO₃ → Pb(NO₃)₄+ 2 Li₂SO₄
The mass of the lithium sulfate = 350 g
The number of moles of lithium sulfate = 350/109.94 = 3.18 mol
The 2 moles of lithium sulfate react with lithium nitrate = 4
Then 0.233 moles of lithium sulfate react with lithium nitrate = 4/2 × 3.18 = 6.36 mol
The mass of the lithium nitrate = 69 × 6.36 = 438.84 g
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How many oxygen molecules are in a flask that contains 1.43 grams of oxygen!
One mole or 32 g of oxygen gas contains 6.02 × 10²³ molecules. Hence 0.044 moles or 1.43 g contains 2.6 × 10²² oxygen molecules.
What is Avogadro number?The Avogadro number represents the number of atoms contained by one mole of any substance. Avogadro number is equal to 6.02 × 10²³. One mole of every elements contains one Avogadro number of atoms.
Similarly one mole a diatomic molecule contains 6.02 × 10²³ number of molecules. The mass of these much molecules is called its molar mass.
Given weight of oxygen = 1.43 g
molar mass of oxygen gas = 32 g/mol
no. of moles = 1.43 / 32 = 0.044
Then number of molecules = 0.044 × 6.02 × 10²³ = 2.6 × 10²².
Therefore, there are 2.6 × 10²² oxygen molecules in the flask.
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In the reaction Cut + Fe → Cu + Fe2+ (Note: The reaction is not balanced.) Fe2+ is the reducing agent. Cut is the reducing agent. Fe is the reducing agent. Cu is the reducing agent.
Fe2+ is the reducing agent in the reaction Cu + Fe → Cu + Fe2+
In a redox reaction, a reducing agent is a species that loses electrons and is oxidized, while an oxidizing agent is a species that gains electrons and is reduced. In this reaction, the Fe is oxidized and loses electrons to form Fe2+, which means it is the reducing agent.
A redox reaction is a chemical reaction in which oxidation and reduction occur simultaneously. An oxidizing agent gains electrons and is reduced, while a reducing agent loses electrons and is oxidized.
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A group of students performed a human demonstration of a chemical reaction. Jack and Emily sat on a bench. Kevin asked Jack to leave the bench and sat in his place. Which type of chemical reaction did the students demonstrate
The students demonstrated a single-displacement reaction, which is a type of chemical reaction in which one element displaces another element from a compound. In this case, Jack (the element) displaced Emily (the compound) from the bench.
The Power of Single-Displacement Reactions: Demonstrating the Impact of DisplacementChemical reactions are a powerful part of our everyday lives, as they help us to understand the science behind the substances and materials we interact with. One type of chemical reaction, single-displacement reactions, can be used to illustrate the impact of displacement in everyday life. In a single-displacement reaction, one element displaces another element from a compound. To demonstrate this concept, a group of students used a human demonstration: Jack and Emily were sitting on a bench when Kevin asked Jack to leave and took his place.
This example of a single-displacement reaction clearly illustrates how displacement can have real-world consequences. In this case, Jack was displaced from his seat on the bench, leaving Emily alone on the bench. This displacement of Jack from his seat has a direct impact on the situation, as it changed the dynamic of the entire group.
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how many ml of a 3 mol/l naoh solution are required to make 100 ml of a 0.2 mol/l naoh solution?
The ml of a 3 mol/L NaOH solution are required to make 100 mL of a 0.2 mol/L NaOH solution is 6.66 mL.
Given that :
The Molarity of the NaOH , M1 = 3 mol/L = 3 M
The volume of the NaOH , V1 =
The molarity of the NaOH , M2 = 0.2 mol/ L = 0.2 M
The volume of the NaOH = 100 mL
The expression is given as :
M1 V1 = M2 V2
3 × V1 = 0.2 × 0.1
V1 = ( 0.2 × 0.1) / 3
V1 = 0.02 / 3
V1 =0.0066 L
V1 = 6.66 mL
Thus, the volume required is 6.66 mL.
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What are the 11 elements that don't match their symbols?
The 11 elements are : sodium, potassium, iron, copper, silver, tin, antimony, tungsten, gold, mercury, lead. these are the elements that do not match their their their symbol.
There are the 11 elements placed in the periodic table and their name does not match their symbols. these elements are given as :
Sodium - NaPotassium - KIron - FeCopper - CuSilver - AgTin - SnAntimony - SbTungsten - WMercury = HgLead - PbThese are the element whose symbol are based on their Latin names , are given as :
Natrium - NaKalium - KFerrum - FeCuprum - CuArgentum - AgStannum - SnStibium - SbWolfram - WAurum - AuHydrargyum - HgLead - PbTo learn more about elements here
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How many sublevels are in the n = 3 level?
How many orbitals are in the n = 3 level?
What is the maximum number of electrons in the n = 3 level?
The most likely position of an electron around an atom is described in three dimensions by an orbital.
Where is the orbitals?The n=3 level of an atom consists of three sublevels. There are three subshells for the shell with n = 3, namely the s, p, and d. These subshells are separated into a predetermined number of different orbitals, each of which has a distinct form and a predetermined amount of electrons.
The n=3n=3 shell has six in-shell divisions. Three orbitals are found in each subshell. With 18 orbitals as a result, the n=3n=3 shell.
The n=3 level of an atom consists of three sublevels. There are three subshells for the shell with n = 3, namely the s, p, and d.
Consequently, the third electron shell has a total of 9 orbitals (1 + 3 + 5).
The maximum number of electrons is therefore 18 for n=3. There are 18 electrons total, 9 of which can have a spin of 21 and the other 9 spins of +21.
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The molecule XeOF4 belongs to the point group Cav (a) (15pts)Obtain a representation based on all the motions of the atoms in XeOF4. Hint place an x,y,z coordinate systems on each atoms and have them all pointing in the same way (b) (8pts)Reduce the representation determined in part (a) to its component irreps. (c) (4pts )Classify the irreps indicating which are for translation, rotation, and vibrational motion (d) (3pts) Examine the vibrational irreps and determine if the are IR active or not. (e) (4pts) Determine the irreducible representation matching the Xe-O stretching vibration. Is this vibration expected to be active? Explain.
The molecule XeOF4 belongs to the point group Cav. The representation for XeOF4 is A1: x,y,z; A2: -x,-y,-z; A3: x,y,-z; A4: -x,-y,z. The irreps are E: x,y,z; -x,-y,-z; x,y,-z; -x,-y,z with E representing translation.
a) Representation for XeOF4:
A1: x,y,z
A2: -x,-y,-z
A3: x,y,-z
A4: -x,-y,z
b) Irreps:
E: x,y,z ; -x,-y,-z ; x,y,-z ; -x,-y,z
c) E: Translation
d) The vibrational irreps are IR active.
e) The irreducible representation matching the Xe-O stretching vibration is A1. This vibration is expected to be active because stretching vibrations are typically IR active.
The molecule XeOF4 belongs to the point group Cav. The representation for XeOF4 is A1: x,y,z; A2: -x,-y,-z; A3: x,y,-z; A4: -x,-y,z. The irreps are E: x,y,z; -x,-y,-z; x,y,-z; -x,-y,z with E representing translation. The vibrational irreps are IR active and the irreducible representation matching the Xe-O stretching vibration is A1, which is expected to be active because stretching vibrations are typically IR active.
The molecule XeOF4 belongs to the point group Cav, which is a point group consisting of a single C2 axis perpendicular to a threefold rotation axis. To obtain a representation based on all the motions of the atoms in XeOF4, an x,y,z coordinate systems should be placed on each atom and all of them should point in the same way. This gives us the representation A1: x,y,z; A2: -x,-y,-z; A3: x,y,-z; A4: -x,-y,z. After reducing this representation, the irreps obtained are E: x,y,z; -x,-y,-z; x,y,-z; -x,-y,z, with E representing translation. The vibrational irreps are IR active and the irreducible representation matching the Xe-O stretching vibration is A1. This vibration is expected to be active because stretching vibrations are typically IR active. This means that when the Xe-O bond in XeOF4 is stretched, it will absorb IR radiation and cause a change in the molecule's energy state.
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Of the following, __________ cannot accommodate more than an octet of electrons. A) P B) AsC) O D) S E) I. E ) O.
Oxygen is the only one of the following that can only hold an octet of electrons.
Oxygen cannot accept more than an octet of electrons because elements below the third period may. The term "octet" refers to the number of electrons an atom needs to have its outermost shell completely filled, which is eight. the octet enlarged In addition to 3s and 3p orbitals, elements in and beyond the third period of the periodic table also have 3d orbitals available for bonding. In a few of these elements' compounds, the center atom is surrounded by more than eight valence electrons. The enlarged octet is what is meant by this. So Oxygen is the only one of the following that can only hold an octet of electrons.
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The half-reaction that should occur at the anode during electrolysis of an aqueous potassium bromide solution is
The half reaction that should occur at the anode during electrolysis of an aqueous potassium bromide solution is formation of bromine from its ions.
As we know, that anions are negatively charged anions. So, these get oxidised to get stable state at anode. Thus, negative ions will react at anode. Similarly cathode has cations that are positively charged. Thus, reduction will take place at the cathode.
In the electrolysis reaction of aqueous potassium bromide -
KBr -> [tex] {K}^{+} [/tex] + [tex] {Br}^{-} [/tex]
In this ionization reaction, the KBr is potassium bromide, [tex] {K}^{+} [/tex] are potassium ions amd [tex] {Br}^{-} [/tex] are bromine ions. The negatively charged bromine ions will be oxidised at anode.
2[tex] {Br}^{-} [/tex] -> [tex] Br_{2}[/tex] +[tex] {2e}^{-} [/tex]
Thus, bromine will be formed at anode.
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Draw the Lewis dot structure for RbF
There are several steps to draw lewis dot structure of any chemical compound. Here, we taking RbF. Structure is given below with the image.
1. Start by writing the chemical symbol for the element at the center of the structure. In this case, it is Rb for Rubidium.
2. Draw dots around the symbol to represent the valence electrons. Rb has one valence electron, so you would put one dot around the Rb.
3. Next, write the chemical symbol for the other element in the compound, in this case F for Fluorine.
4. Draw dots around the symbol to represent the valence electrons. Fluorine has 7 valence electrons, so you would put 7 dots around the F.
5. To create the bond between the two elements, use a pair of dots to connect the Rb and F. This represents the sharing of electrons between the two elements.
So the Lewis dot structure for RbF would be represented as:
. .
Rb+ [:F:]
. .
This representation shows that Rb and F share one pair of electrons, forming a bond between them, and the dots around Rb and F represent the remaining number of valence electrons that are not involved in the bond.
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How much sodium is contained in a fast-food deluxe hamburger that lists a salt content of 2.5 g? Hint: 40% of NaCl (salt) is sodium. Hint: 1 gram= 1000mg
There is 1000mg of sodium in a fast-food deluxe hamburger that lists a salt content of 2.5g.
This can be calculated by multiplying 2.5g by 40% (0.4) to get 1g, then multiplying 1g by 1000mg to get 1000mg of sodium.
2.5g salt x 0.4 (40% of NaCl is sodium) = 1g
1g x 1000mg = 1000mg of sodium
To calculate the amount of sodium in a fast-food deluxe hamburger that lists a salt content of 2.5g, you need to first multiply 2.5g by 40% (0.4). This will give you the total amount of sodium, which is 1g. Then, multiply 1g by 1000mg to get 1000mg of sodium. This means that there is 1000mg of sodium in the hamburger.
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A nuclear power plant generates electricity using nuclear energy. The nuclear energy comes from the heat released by the fission of one uranium atom into two smaller atoms. This heat is used to convert water into steam in a nuclear reactor, which is then used to turn turbines to generate electricity.
How is nuclear energy different from wind energy?
A.
The fuel for nuclear energy is unlimited whereas wind is limited.
B.
The fuel for nuclear energy is limited whereas wind is unlimited.
C.
Wind energy is expensive whereas nuclear energy is economical.
D.
Wind energy causes pollution whereas nuclear energy is pollution-free.
Nuclear energy differs from wind energy because the fuel for nuclear energy is limited whereas wind is unlimited. Option B.
Nuclear versus wind energyBoth nuclear and wind energy's end goal is to turn turbines which are used to generate electricity. However, both energy sources have separate routes they take in order to turn the turbines.
Nuclear energy utilizes the heat generated through nuclear fission to heat water into steam in a nuclear reactor. The steam is then used to turn turbines. Wind energy, on the other hand, utilizes the energy in the wind to turn two or three propellers around rotors. The rotors then turn the generator that is used to generate electricity.
The only major difference between the two energy sources is that the fuel (Uranium) for nuclear reactors in nuclear energy is limited in availability. Uranium deposits are not renewable.
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The C-O bond length in carbon monoxide, CO, is 1.13 Å, whereas the C- O bond length in CO2 is 1.24 Å Part A Without drawing a Lewis structure, do you think that CO contains a single, double, or triple bond? single double triple Submit Request Answer Provide Feedback
To solve this we must be knowing each and every concept related to bond length. Therefore, CO contains triple bond and CO[tex]_2[/tex] contains double bond.
What is bond length?Bond length is indeed the equilibrium length between both the nuclei of 2 groups of atoms that are bound to each other in chemistry. Bond length is indeed a characteristic of such a chemical bond involving atoms of different kinds.
The C-O bond length in carbon monoxide, CO, is 1.13 Å, whereas the C- O bond length in CO[tex]_2[/tex] is 1.24 Å. Since bond length is inversely proportional to bond order so bond order in CO would be less than bond order in CO[tex]_2[/tex]. So, CO contains triple bond.
Therefore, CO contains triple bond.
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A polyunsaturated fatty acid contains more than one ___. A) carboxyl group B) hydroxyl group C) carbonyl group D) long carbon chain E) carbon-carbon double bond
A polyunsaturated fatty acid contains more than one carbon-carbon double bond.
Fatty acids with several double bonds in their structural backbone are called polyunsaturated fatty acids (PUFAs). Drying oils and essential fatty acids are two examples of substances that belong to this category. Methylene-interrupted polyenes, conjugated fatty acids, and other polyunsaturated fatty acids are three distinct chemical classes of polyunsaturated fatty acids.
Methylene-interrupted polyenes feature two or more cis double bonds separated by a single methylene bridge; this structure is also known as a divinylmethane pattern. Multiple double bonds can be found in the chain of a conjugated fatty acid.
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How do intermolecular forces affect the shape of a drop?
The intermolecular forces affect the shape of a drop because a sphere has the smallest feasible surface vicinity for a given volume.
The intermolecular appealing interactions among water molecules reason the droplet to undertake a round shape. This maximizes the wide variety of appealing interactions and minimizes the wide variety of water molecules on the floor. Surface tension: Liquids with more potent intermolecular forces generally tend to have better surface anxiety than people with susceptible intermolecular forces. For example, in case you pour a totally small quantity of water on a table, it's going to generally tend to acquire collectively in a single huge drop.
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Which of the following compounds contains a polar covalent bond? (72.) ___________ (A) NaF (B) HBr (C) (D) MgO (E) O2
The most common examples of molecules containing polar covalent bonds are HBr, HCl, and H2O. Therefore, the correct answer is B) HBr.
A polar covalent bond is formed when one atom has a greater electronegativity than the other. The molecule HBr contains a polar covalent bond because hydrogen has a greater electronegativity than bromine. Therefore, the answer is B. HBr.
The correct answer is B. HBr, as it contains a polar covalent bond due to the difference in electronegativity between the hydrogen and bromine atoms.
Polar covalent bonds occur when the electrons in the bond are not shared equally between the two atoms.
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at what temperature will he atoms have the same the root mean square speed as n2 at 25 oc? Solve this problem without explicitly calculating the speed of N2.
At 1911 ° C temperature will He atoms have the same the root mean square speed as N2 at 25°C
According to formula of rms speed
[tex]U_{rms}[/tex] = [tex]\sqrt{\frac{3RT}{M} }[/tex]
[tex]U_{rms}[/tex] = (N2) = [tex]U_{rms}[/tex] (He)
[tex]\sqrt{\frac{3RT}{28} }[/tex] = [tex]\sqrt{\frac{3R 273}{4} }[/tex]
T = 273 x 28 / 4 = 1911 °C
The square root of temperature and the square root of the molar mass are both directly proportional to the rms velocity. Thus, doubling the rms velocity of the molecules when the temperature of a given gas is quadrupled. The arithmetic mean of the velocity of individual particles or molecules is known as Average velocity, while the root mean square velocity is defined as the square root of the mean square of the velocity of individual particles or molecules. The average speed of an object on a particular axis is known as the rms velocity.
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If the radius of atom X is greater than the radius of atom Y (given that X and Y are in the same period) using general periodic trends, it is likely that:
A)X are a larger electron affinity that Y does
B) X has a larger effective nuclear charge than Y does.
C) X has a greater metallic character than Y does
D) X has a larger first ionization energy than Y does
E) X has a poorer conductor of electricity than Y when in the solid state
If the radius of atom X is greater than the radius of atom Y (given that X and Y are in the same period) using general periodic trends then X has a greater metallic character.
The metallic character decreases from left to right and turns into a covalent character in a period
Electrical conductivity decreases from left to right and turns into poor conductivity in a period. It is directly proportional to the metallic character
Electron affinity decreases from right to left in the same period.
Effective nuclear charge increases left to right in a period.
First Ionisation energy depends on the ionic configuration of the element
Ionisation energy is different for each shell and also depends on the no. of valence electrons present and the shielding effect due to inner electrons.
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Name the following compound: Al(NO2)3
Multiple Choice
O Aluminum dinitrite
O Aluminum dinitrogen oxide
O Aluminum nitrate
O Aluminum dinitrate
O Aluminum nitrite
The correct name for the compound Al(NO2)3 is aluminum dinitrate.
Chemical nomenclature is the formal system of naming chemical compounds. It is based on certain rules and conventions, and allows scientists to quickly and accurately identify and communicate the structure and composition of a compound.
The rules of chemical nomenclature vary depending on the type of compound, but generally involve assigning the correct prefix, suffix, and stem to the compound. The prefix indicates the type of element present in the compound, the stem indicates the number and arrangement of the atoms, and the suffix indicates the type of bonding and the type of compound. For example, the name for H2O is "dihydrogen monoxide" because the prefix "di" indicates two atoms of hydrogen, the stem "hydrogen" indicates that the compound contains hydrogen atoms, and the suffix "oxide" indicates that it is an oxide compound.
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Write lewis structure of CF2H2 :ť: :F-ċ-H B c- 1 which one is correcte how do we know moleculo polar or non-polar ?
The Lewis structure for [tex]CF_2H_2[/tex] is:
H H
l l
C = F
|
F
[tex]CF_2H_2[/tex] is a non-polar molecule. To determine if a molecule is polar or non-polar, we need to look at the arrangement of atoms and their polarities. If the polarities of the atoms are symmetrical, the molecule is non-polar, otherwise, it is polar. In this case, the bond dipoles are symmetrical and cancel out each other resulting in a non-polar molecule.
A Lewis structure, also known as a Lewis dot diagram or electron dot diagram, is a way of representing the valence electrons of an atom in a chemical compound. The structure is named after Gilbert N. Lewis, who first proposed it in 1916. Lewis structures depict the chemical symbol of the atom in the center, with dots representing the valence electrons surrounding it. The number of dots corresponds to the number of valence electrons in the element.
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calculate kc for the following equilibrium: 2so2(g) + o2(g) ⇌ 2so3(g);
Equilibrium constant is the only concept that is to be used here to calculate partial pressure of nitrogen. Therefore, the equilibrium constant Kc for the given reaction is Kp/(RT)^(Δng) = Kc.
What is equilibrium constant?Equilibrium constant is a rate constant at equilibrium shows the values of reaction with respect to the atmospheric pressure and concentration. Kc is equilibrium constant with respect to concentration. Kp is equilibrium constant with respect to atmospheric pressure.
Mathematically,
Kp=[SO[tex]_3[/tex]]²/ [SO[tex]_2[/tex]]²[O[tex]_2[/tex]]
Kp/(RT)^(Δng) = Kc
Therefore, the equilibrium constant Kc for the given reaction is Kp/(RT)^(Δng) = Kc.
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Each compound contains both ionic and covalent bonds. Write ionic Lewis structures for each of them, including the covalent structure for the ion. Write resonance structures if necessary. [] C Н. 0 N SIP F. Br ci 1 X More Type the new charge. Press ENTER to finish editing. Press TAB to go through atoms in the structure. Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining
Each compound contains both ionic and covalent bonds are:
Ionic Lewis Structures:
1. Cation: [C+] [H-] [O-] [N+] [S+] [I-] [F-] [Br-] [Cl-]
2. Anion: [C-] [H+] [O+] [N-] [S-] [I+] [F+] [Br+] [Cl+]
Resonance Structures:
1. Cation: [C+] [H-] [O+] [N-] [S+] [I-] [F-] [Br-] [Cl-]
2. Anion: [C-] [H+] [O-] [N+] [S-] [I+] [F+] [Br+] [Cl+]
What is covalent bonds?
Covalent bonds are chemical bonds formed when two atoms share electrons. These bonds form when the atoms involved have similar electronegativities, which causes them to be attracted to each other. Covalent bonds are stronger than ionic bonds, which form when an atom loses or gains electrons from another. In covalent bonds, the electrons are shared instead of transferred. Depending on the number of electrons shared, there are single, double, and triple covalent bonds. Single covalent bonds involve the sharing of two electrons, double covalent bonds involve the sharing of four electrons, and triple covalent bonds involve the sharing of six electrons.
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The half-reaction occurring at the cathode during electrolysis of an aqueous copper(II) iodide solution is
The half-reaction occurring at the cathode during electrolysis of an aqueous copper(II) iodide solution is Cu2+ + 2e = Cu ( E° = -0.34 V)
The reactions that take place, are:
I2 + 2e = 2I-( E° = 0.54 V)
2I- = I2 + 2e ( E° = -0.54 V)
Cu = Cu2+ + 2e ( E° = 0.34 V)
2e- + 2H2O = H2 + 2OH- ( E° = -0.83 V)
Cu2+ + 2e = Cu ( E° = -0.34 V)
Redox reactions include a change in the oxidation state of the substrate. Oxidation is the loss of electrons or an increase in the oxidation state; when they are gained or the oxidation state decreases, it is called reduction.
A redox reaction's half reaction is either its oxidation or reduction component. By taking into account the shift in oxidation states of the many chemicals participating in the redox reaction, a half reaction is obtained.
The anode half-reaction, where oxidation takes place, and the cathode half-reaction, where reduction takes place The reaction that occurs at an electrode during electrolysis is described by a half equation. It demonstrates what happens when ions pick up or drop off electrons.
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Cu2+ + 2e = Cu (E° = -0.34 V) is the half-reaction that takes place at the cathode during the electrolysis of an aqueous copper(II) iodide solution.
The oxidation or reduction component of a redox reaction is its half reaction. A half reaction is produced by accounting for the change in oxidation states of the several chemicals involved in the redox reaction.
The cathode half-reaction, which involves reduction, and the anode half-reaction, which involves oxidation A half equation can be used to describe the electrolysis reaction that takes place at an electrode. It illustrates what transpires when ions take on or lose electrons.
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What is the bond order of N2+? Express the bond order numerically. Is N2+ paramagnetic or diamagnetic? paramagnetic diamagnetic neither
Bond order of N2+ is 2.5. It is a diamagnetic substance.
Bond order is termed as the number of chemical bonds between a pair of the atoms. For example: In case of acetylene the bond order between the two carbon atoms is 3, in diatomic nitrogen the bond order is 3, and the C-H bond order is 1.
The bond order of N2+ is 2.5.
Bond order = 1 / 2[Nb - Na] Where, Nb = no. of electrons in bonding molecular orbital and Na = number of electrons in antibonding molecular orbital.
Bond order = 9-4 / 2
= 2.5
N2+ is diamagnetic in nature because they do not have any unpaired electrons they are having 14 electrons.
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Equilibrium quantity must decrease when
O demand increases and supply decreases.
O demand decreases and supply increases.
O both demand and supply decrease.
O demand increases and supply does not change.
Equilibrium quantity must decrease when both demand and supply decrease. Option C
What is demand and supply?We know that the theory of demand and supply lies at the heart of the discussion about the theories of economics we know that a rise in demand should be able to precipitate a corresponding demand in the supply but this is not always the case.
Having said this, let us now recall that when we are able to cause the demand for a given product that is in circulation to begin to decrease, then the equilibrium quantity would also decrease.
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Which of the following explains how Hahn, Strassman, and Meitner tried to influence the use of their discovery?
They opposed the use of energy released during nuclear fission for military purposes.
They supported the use of quantum mechanics for identifying chemical substances.
They supported the use of radioactive elements for diagnostic purposes.
They opposed the use of nuclear fusion during the Manhattan Project.
They opposed the use of energy released during nuclear fission for military purposes. Option A
How did they us their influence?We all need to know that the greatest energy that could ever be available in the universe is the energy that is trapped in the nucleus of the atom of the substance. We know that the energy that we have in the nucleus of the atom can be released via a nuclear fusion or a nuclear fission.
In either of the cases, we would have to work with that mighty and massive energy that has been trapped down right inside the nucleus of the atom and we can only be able to release it by means of the nuclear reactions.
The people that discovered the nuclear fission were Hahn, Strassman, and Meitner and they did not want to use the technology for war.
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Answer:
option a
Explanation:
i just took the test
Convert 6800 microseconds to centiseconds. (1,000,000 us = 1 s, 100 cs = 1 s)
It is 0.68 centiseconds
Is ethyl-4-aminobenzoate polar or non-polar? and is it soluble in HCl?
Ethyl-4-aminobenzoate is polar and soluble in HCl.
In general, Ethyl Aminobenzoate is having a bitter texture upon tasting, and has numbing effect on tongue. Ethyl Aminobenzoate is known to be easily soluble in ethanol or in ether, and less soluble in water. Ethyl Aminobenzoate is also capable of dissolving in dilute hydrochloric acid.
Ethyl-4-aminobenzoate is formed by the Lone pair of electrons that are present on the amine group that donates it to hydronium ion of HCl . Considering it is an ionic, so more soluble in solution that are neutral molecule itself , and soluble in solvent like ethanol, chloroform or ether, while slightly soluble in fatty oil, and slightly soluble in water.
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