For aldol reactions that are not favored, the reaction could proceed backwards: the aldol product, upon treatment with base, reverts to the carbonyl compounds it would have formed from in aldol condensation. That is known as "retro-aldol" reaction. Select ALL carbonyl compounds that would result in the following retro-aldol reaction. ?
Answers
In this retro synthesis the following two reactant would be involved. [SEE in attachement]
A reaction in which a β-hydroxy carbonyl compound decomposes into an aldehyde or ketone, plus another carbonyl compound. The formal reverse of the aldol reaction.
The stage of an aldol condensation known as dehydration is also reversible in the presence of acid and base catalysts. Therefore, many, -unsaturated carbonyl compounds break into smaller aldehydes or ketones when heated with aqueous solutions of strong acids or bases; this reaction is known as the retro-aldehyde reaction. The aldol reaction is reversible in the presence of acid or base catalysts, and the beta-hydroxy carbonyl products may transform back into the initial aldehyde or ketone reactants. These aldol products are fully stable and isolable chemicals in the absence of such catalysts.
To learn more about catalysts visit:https://brainly.com/question/28813725
#SPJ4
Related Questions
from the list below, select four situations in which casting is the preferred fabrication technique. (1) for alloys having low ductilities (2) when it is the most economical fabrication technique (3) when it is needed to join a large variety of metals and alloys (4) for large pieces and/or complicated shapes (5) for economical producing of parts that require very close dimensional tolerances (e.g. bushing and gears) (6) when mechanical strength is not an important consideration (2), (3), (5), (6) (1), (2), (4), (6) (2), (3), (4), (6) (1), (2), (4), (5) (1), (3), (4), (5)
Answers
Mechanical strength isn't a key factor when a wide range of metals and alloys need to be joined.
What are the three primary fabrication methods?While many metal fabrication businesses employ a variety of methods, the majority rely on the three fundamental operations of cutting, bending, and assembly.
What is a fabrication, exactly?The following are some illustrations of fabrication or falsification: producing data artificially when it ought to be coming from a real experiment Unauthorized tampering with or fabrication of information, texts, pictures, audio, video, music, or other works.
To know more about fabrication techniques visit:
https://brainly.com/question/14375464
#SPJ4
at resting potential the ion distribution inside and outside of a neuron is such that ....... ions are most abundant on the outside of the cell while ........ ions are most abundant on the inside of the cell
sodium; potassium
Answers
In a neuron at resting potential, potassium ions are more prevalent inside the cell than sodium ions are, with sodium ions being more prevalent on the exterior of the cell.
The arrangement of charged ions throughout the cell membrane causes a difference in electrical potential between the inside of the cell and the surrounding area. Membrane potential is the name given to this. It takes energy to maintain the voltage differential across the cell membrane when it is quiescent. Continuously, the sodium-potassium pump removes three sodium ions from the cell for every two potassium ions it brings in.
To know more about sodium ions please click on the link brainly.com/question/25883474
#SPJ4
Which of the following compound(s) could be used as starting material(s) make an amide in just 1 step, using reactions we learned in Chapter 21? Select all that apply! O an ester O a carboxylic acid O a nitrile O an anhydride another amide O an acid chloride
Answers
The correct answer is carboxylic acid. Option B.
In a similar reaction, a coupling agent such as DCC can be used to prepare amides by the reaction of carboxylic acids with amines. Simple amides can be made by reacting acid anhydrides with amines. Finally, amides can be formed from the direct reaction of carboxylic acids and amines.
Amides are generally prepared by coupling a carboxylic acid with an amine using a coupling agent or by first converting the carboxylic acid to a derivative. Alternative methods include Staudinger ligation, aminocarbonylation of aryl halides, and oxidative amidation of aldehydes. Amides can be hydrolyzed in the presence of aqueous acids.
Learn more about Compound here:- https://brainly.com/question/26487468
#SPJ4
in calorimetry, whatever happens in the system, the exact same change must occur to the surroundings.
Answers
In calorimetry, whatever happens in the system, the exact same change must occur to the surroundings is False.
What occurs in calorimetry?
Heat transfer rates to or from a substance are measured using calorimetry. Heat is transferred to do this using a calibrated item (calorimeter). Calculating the quantity of heat transmitted by the process under study requires using the temperature change recorded by the calorimeter.
The sealed calorimeter has thermometers that track temperature changes as a reaction takes place. This closed system functions similarly to a chemical reactor.
It's crucial to realize that in calorimetry difficulties, the material reacting is the "system," whilst the surroundings are made up of water and calorimetry. The heat exchanged between the "system" and "surroundings" is what is measured.
To know more about calorimetry use link below:
https://brainly.com/question/1407669
#SPJ4
Oxalic acid (HC2H2O4HC2H2O4) is a weak acid found in the leaves of rhubarb. Which of the following solutions will have the highest pH?
a) 0.00075 M H2C2O40.00075 M H2C2O4
b) 1.0×10−4 M1.0×10−4 M H2C2O4H2C2O4
c) 1.0 M H2C2O41.0 M H2C2O4
d) 0.5 M H2C2O4
Answers
b) 1.0×10−4 M1.0×10−4 M H2C2O4H2C2O4 will have the Highest pH among the solutions.
When compared to strong acid, does oxalic acid produce less H ions?A weak acid is what oxalic acid is. It is not as strong as H3O+ ion (water). However, it is more potent than acids like acetic, sulfuric, nitrous, and benzoic. First of all, it is an organic substance, and organic substances are often not strong acids. Dicarboxylic acid is another name for oxalic acid.
How can you determine the pH of an amalgamation of weak bases and weak acids?Similar to how the weak acid in the example was calculated, a weak base's solution can also be calculated to determine its pH. However, the concentration of the hydroxide ion will be represented by the variable x.
Learn more about pH here:
brainly.com/question/15289741
#SPJ4
Question 4
How many moles of CuSO4 are there in 7.87 x 1024 molecules of CuSO4?
Answers
Answer:
8058.88
Explanation:
7.87 x 1024 = 8058.88
duh
when 15.00 g co and 5 g of h2 are mixed and reacted in the following reaction, how many grams of methane gas are produced. 3h2 co --> ch4 h20
Answers
Considered are two simultaneous responses involving five species: (Reaction 1) CH4 + H2O CO + 3H2 CO + H2O CO2 + H2 (reaction 2) The water-gas shift (WGS) reaction is reaction number two.
Find the limiting reaction by what method?
By dividing the number of moles of each reactant by its stoichiometric coefficient in the balanced chemical equation, you may determine which reactant is the limiting one. Calculate the maximum number of moles of product that can be produced from the limiting reactant using mole ratios.
How do you identify the limiting and excess reactant?
The limiting reagent is the one that yields the least amount of the final product. The excess reagent is the reactant that yields more product than any other. Subtract the mass of excess reagent eaten from the total mass of excess reagent provided to determine the amount of surplus reactant that is still present.
To know more about limiting reaction visit;
https://brainly.com/question/14923179
#SPJ4
What is the mass percentage of C in morphine, C₁7H19NOs? Provide an
answer to two decimal places.
Answers
The mass percentage of C in morphine would be 4.21%.
What is mass percentage?The mass percentage of a composition in a compound is the mass of the composition relative to the mass of the entire compound. This can be mathematically expressed as:
Mass percentage = mass of component/mass of substance x 100%
In this case, we are looking for the mass percentage of C in [tex]C_{17}H_{19}NO_3[/tex].
Molar weight of C = 12 g/mol
Molar mass of [tex]C_{17}H_{19}NO_3[/tex] = (12x17) + (1x19) + (14x1) + (16x3)
= 285 g/mol
Mass percentage of C = 12/285
= 4.21% to 2 decimal places.
In other words, the mass percentage of C in morphine is 4.21%.
More on mass percentage can be found here: https://brainly.com/question/16885872
#SPJ1
look at the given synthesis and the provided reagents. fill in the blanks with the single letter code of the appropriate reagent, or the appropriate descriptive vocabulary word/phrase to complete the description. remember the computer is very literal so check your spelling carefully.
Answers
The reagent are used in the chemical reaction to cause the chemical reaction or the test performed if one occurred.
The reagents are the compounds or the mixture that are added to the chemical reaction in order to start the chemical reaction. The reagent is not necessarily be consumed during the chemical reaction. the reagent is used to identify the compound or to measure the substance if it is present in the reaction.
The reagent is the initiator , solvent , catalyst etc. the example of the reagents are : Tollen's reagent , Fehling's reagent , Fenton's reagent and collins reagent etc.
The question is incomplete, I answer the question in general according to my knowledge.
To learn more about reagent here
https://brainly.com/question/14785610
#SPJ4
in the following compound, how many lone pairs of electrons does the nitrogen atom bear? (enter answer as a number.)
Answers
The nitrogen molecule's molecular formula is N2. The triple bonds that hold the nitrogen atoms together. They each possess a single pair of electrons as a result. Consequently, there are two lone pairs overall.
A lone pair and three covalent bonds commonly encircle nitrogen in its typical, no-formal charge configuration. In (a), the nitrogen atom shares three bonding pairs with another atom, has one lone pair, and has a total of five valence electrons. This brings us full circle back to the nitrogen atom. The nitrogen molecule's molecular formula is N2. The triple bonds that hold the nitrogen atoms together. They each possess a single pair of electrons as a result. Imine nitrogen's lone pair electrons are located in a sp2 hybrid orbital, whereas amine nitrogen's lone pair electrons are located in an sp3 hybrid orbital.
to know more about lone pairs please visit.
https://brainly.com/question/9477434
#SPJ4
During the molecular modeling lab, you were told to consider the importance that molecular geometry has on polarity. Which of the following list of molecules would you classify as polar? [Hint: It may be helpful to sketch the structures to determine polarity.] I. PF5 II. SF4 III. SiO2 IV. H2S V. CI2 O II + IV O I + III O III + IV O IV + IO III
Answers
Molecules (II) and (IV) that is SF4 and H2S are polar.
In polar molecules, the electron density is unevenly distributed throughout the molecule, resulting in some regions of negative charge and some regions of positive charge. Molecular polarity depends on both individual bond polarities and molecular geometry, the latter of which can be predicted using his VSEPR theory.
Reason :
In molecule (I), molecule is symmetrical all polar bond cancel out polarity of each other so molecule is non-polar.
In molecule (II), molecule is asymmetrical, having a lone pair so molecule is polar.
In molecule (III), molecule is linear, bond polarity cancel out each other, so molecule is non-polar.
In molecule (IV), molecule is bent (asymmetric) having two lone pair, molecule is polar.
In molecule (V), no bond polarity, hence molecule is non-polar.
Learn more about Polar molecules here :-
https://brainly.com/question/1433127
#SPJ4
a reaction that has a large equilibrium constant has hints a. a faster reaction rate than a reaction with a small equilibrium constantb. more reactants then products at equilibriumc. more products then reactants at equilibriumd. equal amounts of products and reactants at equilibrium.
Answers
When the rates of the forward and reverse reactions are identical, equilibrium has occurred. At equilibrium, the concentrations of each reactant and product are both constant.
The relationship between a reaction's products and reactants at equilibrium is expressed by the equilibrium constant, K. A rise in pressure will cause the reaction to move to the right if there are more reactants than products by moles. It is untrue that a reaction with a higher equilibrium constant value proceeds more quickly than one with a lower equilibrium constant value. The equilibrium constant's value has no bearing on the reaction's rate. The rate constant affects the reaction's rate.
to know more about equilibrium please visit.
https://brainly.com/question/28527601
#SPJ4
Draw the major organic product(s) of the following reactions including stereochemistry when it is appropriate. H2O/H2SO4 Hgo . Use the wedge/hash bond tools to indicate stereochemistry where it exists. If no reaction occurs, draw the organic starting material. - Separate multiple products using the + sign from the drop-down menu
Answers
The major organic product of the following reactions including stereochemistry when it is appropriate will be (2-methylallyl)benzene (Structure attached).
The keto-enol tautomerism will result in the formation of ketone upon hydration of the alkyne. To initiate the process of forming an enol, hydrogen and a hydroxy group is introduced across the triple bond. Enol undergoes tautomerism to produce ketone. The reaction that is described further down is facilitated by mercuric oxide. The major organic product of the given reactions including stereochemistry when it is appropriate will be (2-methylallyl)benzene. The structure of reactants and products along with the mechanism and the catalyst are given in the attached picture.
Complete question is attached.
You can also learn about stereochemistry from the following question:
https://brainly.com/question/13266152
#SPJ4
the half equivalence point is in the middle of the buffer region. in order to reach the half equivalence point in their titration, veronica needed to add 24.47 ml of koh to 50.00 ml of 0.368 m hf. what is the concentration of conjugate base at the half equivalence point? note: do not use scientific notation or units in your response. sig figs will not be graded in this question, enter your response to four decimal places. carmen may add or remove digits from your response, your submission will still be graded correctly if this happens.
Answers
The concentration of conjugate base at the half equivalence point should be 0.347 M.
Moles of HF = molarity × volume ( in L )
= 0.342 × 50/1000
= 0.0171 mol
Since, at half equivalence point, exactly half of the acid in the buffer solution has reacted with the titrants.
So, moles of KOH = 0.0171/2 mol
molarity of KOH = moles / volume (in L)
= (0.0171 / 2 mol) / 24.63 L / 1000
= 0.0171 × 1000 / 2 × 24.63
= 0.347 M
Therefore, the concentration of conjugate base at the half equivalence point is 0.347 M.
To learn more about Concentration, here :
https://brainly.com/question/29855974?referrer=searchResults
#SPJ4
At constant T and P, 2.0 L of nitrogen gas are combined with 6.0 L of hydrogen gas to form ammonia. Which of the following statements correctly describe the outcome of the reaction, assuming it goes to completion? Select all that apply.
When the reaction is completed, only NH3 is present.
The product occupies a volume of 4.0 L under these conditions.
N2 combines with H2 in a 1:3 ratio.
Answers
The observations that are applied are as follows:
NH3 is present.
N2 combines with H2 in a 1:3 ratio.
When nitrogen reacts with hydrogen, it yields ammonia. The chemical equation can be expressed as follows:
N2(g) +3H2(g)---> 2 NH3(g)
The stochiometric ratio in which nitrogen and hydrogen reacts is the ratio 1:3. And the when the reaction is completed, only NH3 is present. At constant T and P, 2.0 L of nitrogen gas are combined with 6.0 L of hydrogen gas to form ammonia.
To learn more about chemical equation check the link below:
https://brainly.com/question/26694427
#SPJ4
in applying this method to other reactions, could the reactant mole ratio for all reactions be found using this method
Answers
The reactant mole ratio for all reactions discovered using this method must be met in order to apply this method to other reactions. Furthermore, the reactant molar ratios for each reaction must be known in order to determine the mole ratio in which the principal reactants react.
To adjust the reaction temperature, water was added to reaction mixtures A through E. In this experiment, KCr,O- was chosen as the source of dichromate ions because it is a strong oxidising agent that is easily converted into dichromate ions.The mole ratio is the ratio of the mole amounts of any two compounds in an equitable chemical reaction. The balance chemical equation compares the ratios of the molecules required to complete the reaction. It calculates how much of one substance is required to produce a certain amount of another substance using the mole ratios between the different parts of the reaction.
Learn more about mole ratio here:
https://brainly.com/question/15288923
#SPJ4
. when the colors yellow and blue are combined, they produce a green color. which statement most likely describes the relative sizes of the yellow and blue food-coloring molecules in the diagram?
Answers
Nuclides below the valley of stability can become more stable through which of the following processes?
A) beta emission
B) positron emission
C) gamma emission
D) electron capture
E) neutron bombardmentB) positron emission
Answers
Nuclides below the valley of stability can become more stable through positron emission.
A positron emission tomography (puppy) test is an imaging check which can assist reveal the metabolic or biochemical feature of your tissues and organs. The puppy test uses a radioactive drug (tracer) to reveal both ordinary and abnormal metabolic pastime.
A positron is the anti-particle of a beta particle, and is emitted with the aid of a proton-rich nucleus. The collision of an electron and a positron yields two 0.511 MeV gamma rays. Positron gamma radiation can penetrate via inches of iron, concrete, timber, plastic, water, and many others.
They're converted into two high-electricity gamma rays moving immediately faraway from every other.
Learn more about positron emission here:- https://brainly.com/question/4598666
#SPJ4
Classify the radicals into the appropriate categories. Primary Secondary Tertiary Allylic Answer Bank (CH3)2CHCH2CH2 HC H3C H3C
Answers
The formation of free radicals in the organic reaction takes place when the bond is cleavage homolytically. Free radicals are species with a single electron and thus, they are electron deficient in nature.
A free radical may be primary, secondary or tertiary depending upon the number of H-atoms attached to it. Further, the free radicals may be categorized as alkyl, allyl or benzyl radicals.
Primary free radicals: When radical is attached to two H-atoms.
Secondary free radicals: When radical is attached to one H-atoms.
Tertiary free radicals: When radical is not attached to any H-atoms.
Allylic free radicals: When radical is attached to two H-atoms and is in conjugation (resonance) with double bond.
To learn more about free radicals visit:https://brainly.com/question/29422803
#SPJ4
2. Write Informative Texts What type of
change must occur for pure substances to
combine into new materials? Name a few
kinds of synthetic materials that can be
produced by this type of change
Answers
Answer:
Read below
Explanation:
In order for pure substances to combine into new materials, a chemical change must occur. This type of change involves the rearrangement and/or reorganization of the atoms in the substances, resulting in the formation of new substances with different chemical and physical properties.
Some examples of synthetic materials that can be produced through chemical changes include plastics, ceramics, and various types of composites. Plastics are synthetic polymers that can be molded into a variety of shapes and are known for their durability and versatility. Ceramics are inorganic, non-metallic materials that are made by heating and then cooling clay and other materials. Composites, on the other hand, are materials made from two or more different substances that are combined to create a material with improved properties, such as increased strength or durability.
g which of the following nuclides are most likely to decay via positron emission? na-26 i-121 ca-42 s-30 sb-122
Answers
In order to balance out nuclides with an unbalanced protons to neutrons ratio, decay is used.generating a neutrino and a positron (01e+) (v).
What results from the MG 23 positron decay?There are 12 protons & 11 neutrons in magnesium-23.The ratio of neutrons to protons is 11:12, or 0.92:1.As a result of positron emission, sodium-23 is created.
What is the result of NA 22 emitting positrons?A synthetic isotope called sodium-22 has a half-life about 2.6 years.It undergoes a steady neon-22 decay, producing a positron (+ decay).
To know more about positron emission visit :
https://brainly.com/question/20388835
#SPJ4
the rf of a compound on a tlc plate will likely increase as you increase the polarity of the developing solvent.
Answers
The Rf value of a compound is generally equal to the distance that is traveled by the compound divided by the distance traveled by the solvent front.
Thin layer chromatography (TLC) is a widely used separation technique for the quantitative and qualitative analysis. It uses a thin layer of a stationary phase that is coated on a glass, plastic, or also on aluminum plate. A liquid solvent that is called the mobile phase generally carries the sample and separates it as it moves across the plate. It offers the advantages of simplicity, sensitivity, and rapid analysis over other separation techniques.
The stronger a compound is bound to the adsorbent , the slower it moves on the TLC plate. Non-polar compounds move up the plate most rapidly because of the higher Rf value, whereas polar substances will travel up the TLC plate slowly or not at all due to the lower Rf value.
The Rf value is a ratio, and it represents the relative distance between the spot traveled compared to the distance it could have traveled if it was moved with the solvent front. An Rf of 0.55 means the spot moved 55% as far as the solvent front, or a little more than halfway.
To know more about Rf value
https://brainly.com/question/17132198
#SPJ4
The standard emf for the cell using the overall cell reaction below is =2.20 V:
2Al(s) + 3I2(s) ? 2Al3+ (aq) + 6I- (aq)
The emf (voltage) generated by the cell when [Al3+] = 4.0 x 10-3 M and [I-] = 0.015 M
is_______ V
Answers
The cell produces an emf of 2.32 V. For this cell reaction at 25 degrees Celsius, use the Nernst equation. where n represents the number of electrons exchanged during the cellular process.
What is the typical EMF this cell produces?According to measurements, the electromotive force (EMF) is 1.100 V. The standard condition is specified as a concentration of 1 M in an ideal solution, and as a result, 1.100 V is the standard electromotive force, DEo, or standard cell potential for the Zn–Cu galvanic cell.
How is the average Ecell determined?Due to the larger standard reduction potential of the silver half-cell, the reduction will occur. The half-cell of tin will oxidize. The formula E0cell=E0red+E0oxid can be used to get the overall cell potential.
To know more about Electromotive Force (EMF) here:
brainly.com/question/14968481
#SPJ4
propose a chemical test that could be used to distinguish the presence of alkene in your product (hint: think about exp 08).
Answers
Alkane and alkene distinctions can be made using a straightforward test using bromine water. This enables us to differentiate between alkenes and alkanes using a straightforward chemical test.
The orange solution of bromine is called bromine water. Alkanes and alkenes can be distinguished using bromine water, an orange solution. Alkenes are typically checked for using bromine water. If you shake the test tube after adding an alkene to a sample of bromine water. Similar to how alkene passes through bromine water, bromine's yellow color is removed by colorless solution. A qualitative test for the presence of phenols, anilines, and unsaturated carbon is the bromine decolorization test.
to know more about Alkane please visit.
https://brainly.com/question/27039762
#SPJ4
help asha balance the following equation by completing the equation with the correct numbers: co equation c co2
Answers
The Balanced Eqn is 2CO+O2→2CO2.
A chemical reaction is a method wherein one or more materials, also called reactants, are transformed into at least one or more special substances, called merchandise. Materials are both chemical elements or compounds.
A few synthesis reactions can result in more than one product. Photosynthesis is one of the maximum important chemical reactions on earth. It allows plants and a few microbes to transform water and carbon dioxide gas into storable sugar and oxygen.
Chemical compounds are made from atoms of different elements, joined collectively through chemical bonds. A chemical synthesis normally involves the breaking of existing bonds and the formation of recent ones.
Learn more about Chemical reactions here:-brainly.com/question/26505550
#SPJ4
What is ΔH∘rxn for the following chemical reaction?
CO(g)+NH3(g)→HCN(g)+H2O(g)
You can use the following table of standard heats of formation (ΔH∘f) to calculate the enthalpy of the given reaction.
Element/ Compound Standard Heat of Formation (kJ/mol) Element/ Compound Standard Heat of Formation (kJ/mol)
H(g) 218 N(g) 473
H2(g) 0 O2(g) 0
NH3(g) −45.90 O(g) 249
CO(g) −110.5 H2O(g) −241.8kJ
C(g) 71 HCN(g) 130.5kJ
C(s) 0 HNO3(aq) −206.6
Express the standard enthalpy of reaction to three significant figures and include the appropriate units.
Answers
To calculate the standard enthalpy of reaction (ΔH∘rxn) for the given chemical reaction, we need to use the equation for enthalpy of reaction, which is:
ΔH∘rxn = Σ(ΔH∘f products) - Σ(ΔH∘f reactants)
where ΔH∘f is the standard heat of formation for a given compound, and the summation symbol (Σ) indicates that we need to sum the values for all of the products and reactants in the reaction.
In this case, we are given the standard heats of formation for the products and reactants in the reaction:
CO(g)+NH3(g)→HCN(g)+H2O(g)
We can use these values to calculate the enthalpy of reaction, as follows:
ΔH∘rxn = Σ(ΔH∘f products) - Σ(ΔH∘f reactants)
= (ΔH∘f HCN + ΔH∘f H2O) - (ΔH∘f CO + ΔH∘f NH3)
= (130.5 kJ + −241.8 kJ) - (−110.5 kJ + −45.90 kJ)
= (−111.3 kJ) - (−156.4 kJ)
= 45.1 kJ
Therefore, the standard enthalpy of reaction for the given chemical reaction is 45.1 kJ to three significant figures. This value represents the amount of heat that is absorbed or released when the reactants are converted into products, and it can be used to predict the energetics of the reaction under standard conditions.
which of the following nuclides are most likely to decay via positron emission? na-26 i-121 ca-42 s-30 sb-122
Answers
The following nuclides are most likely to decay via positron emission is S - 30 because it has lowest value of the N/Z value.
The one which have the lowest N / Z value will undergo the positron emission. N is the number of the neutron and Z is the number of the proton.
1) Na - 26 = number of neutron / no. of proton
= 15 / 11
= 1.3
2) I -121 = 68 / 53
= 1.2
3) Ca - 42 = 22 / 20
= 1.1
4) S - 30 = 14 / 16
= 0.8
5) Sb - 122 = 71 / 51
= 1.3
Thus , S - 30 has the lowest N/Z value.
To learn more about positron emission here
https://brainly.com/question/28506056
#SPJ4
According to simple valence bond theory (no promotion/hybridization), which of the following species would not form a bond with carbon? Consider the electronic configuration of the ground state of the element
(a) LiC
(b) BeC
(c) BC
(d) C2
(e) CN
Answers
BeC will will not form a pair because no free element is available with Be.
The elements given in the above question is as follow,
Now consider the ground state of given element we get,
[tex]Li=1s^2,2S^1\\Be=1s^2,2S^2\\B=1s^2,2S^2,2p^1\\C=1s^2,2S^2,2p^2\\N=1s^2,2S^2,2p^3[/tex]
Now, for balance bond theory,
Consider,
a) LiC
[tex]Li=1S^2,2S^1\\C=1S^2,2S^2,2P^2[/tex]
It will form a bond because unpaired electrons are present.
b)Bec
[tex]Be=1s^2,2S^2\\C=1s^2,2S^2,2p^2[/tex]
If will not form a pair because no free element is available with Be.
c)BC
[tex]B=1s^2,2S^2,2p^1\\C=1s^2,2S^2,2p^2[/tex]
It will form a bond because unpaired electrons are present in Boron and carbon.
d)[tex]C_2[/tex]
[tex]C=1s^2,2S^2,2p^2[/tex]
It will form a bond because unpaired electrons are present.
e)CN
[tex]C=1s^2,2S^2,2p^2\\N=1s^2,2S^2,2p^3[/tex]
It will form a bond because unpaired electrons are present.
For more such question on valence bond.
https://brainly.com/question/23129240
#SPJ4
as in top hat, draw the lewis structure of pf3 and answer the following questions! name the compound what is the number of valence electrons number the bonding pair of electrons around the central atom. number the number of single bonds.
Answers
There are a total of 26 valence electrons in the PF3 Lewis structure. The steric number of a single phosphorus trifluoride (PF3) molecule is four because it has three bonds (between the elements phosphorus and fluorine) and one empty pair of electrons.
The colorless and odorless gas phosphorus trifluoride (PF3) is poisonous in a manner similar to that of carbon monoxide. It spreads throughout the body by attaching to the iron in hemoglobin and preventing the blood from receiving oxygen. In a chemical process, PF3 acts as a nucleophile by donating two electrons. Hybridization, Molecular Geometry, and PF3 Lewis Structure.The number of valence electrons of an atom, which easily interact with the valence electrons of another atom to create a bond, is depicted in a Lewis diagram.
To know more about Lewis diagram click here brainly.com/question/14091821
#SPJ4
Post-Lab Questions Discuss the outcome of Ihe E1 and E2 reactions for (he following: Which alkene was formed as Ihe major product? Explain thoroughly for full credit; Which alkene was formed as the minor product? Explain thoroughly for full credit;
Answers
Both E1 reaction and E2 reaction are more likely to produce 2-methyl-2-butene, instead of 2-methyl-1-butene.Therefore, it makes sense that "2-methyl-2-butene" is the major product while "2-methyl-1-butene" is the minor product because it is not as stable or substituted.
This has happened due of Zaitsev's Rule. Compared to 2-methyl-1-butene, 2-methyl-2-butene's double bond is more heavily replaced. Because it is more stable, 2-methyl-2-butene is more prevalent in the yield. The hydrogen needed to create 2-methyl-2-butene comes from the beta carbon that has undergone the most substitutions. According to Zaitsev's rule, the main product is the one produced as a result of hydrogen being lost during beta distillation, errors being made when weighing and measuring reagents and products, gathering the distillate above 45 C, and alkene products being lost because the alkenes were too close to a heat source. Future investigations should aim to reduce these flaws to obtain more precise results.
learn more about 2-methyl-2-butene here:
https://brainly.com/question/12484834
#SPJ4