draw the complete lewis diagrams showing all lone pairs for water and ammonia in an orientation that allows for a hydrogen bond. use a line to indicate the location of the hydrogen bond.

Answer:

Explanation:

To determine the number of grams in 3.9 moles of C3H5C13, we need to first determine the molar mass of C3H5C13. The molar mass of a substance is the mass of one mole of the substance, and it is calculated by adding up the atomic weights of all the atoms in the molecular formula.

In the case of C3H5C13, the molar mass is calculated as follows:

Molar mass of C3H5C13 = (3 x 12 g/mol) + (5 x 1 g/mol) + (13 x 35.5 g/mol) = 106.5 g/mol

Next, we need to multiply the molar mass by the number of moles to determine the number of grams:

3.9 moles x 106.5 g/mol = 421.05 g

Therefore, there are 421.05 grams in 3.9 moles of C3H5C13.

The halogen dissociates into atoms at 1756 K : the dissociation is 3.7 %. The value of Kc is 3.8 × 10⁻⁴.

the reaction is given as:

Br₂(g)  ⇄   2Br(g)

moles of Br₂ = 0.086 mol

volume = 1.26 L

concentration of [Br₂] = 0.086 / 1.26

                                     = 0.0682 M

                               Br₂(g)  ⇄   2Br(g)

initial                     0.0682             0

                               -x                 2x

eq.                     0.0682 - x        2x    

the dissociation = 3.7 %

x = 0.0682 × 0.037

x = 0.00252

the equilibrium constant Kc is given as :

Kc = [Br]² / [Br₂]

Kc = ( 2 × 0.00252 )² / ( 0.0682 - 0.00252  )

Kc = 3.8 × 10⁻⁴

Thus, suppose 0.086 mol of Br₂ is placed in a 1.26 l flask and heated to 1756 k, a temperature at which the halogen dissociates into atoms: the dissociation is 3.7 % .then the value of Kc is  3.8 × 10⁻⁴.

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Radioactive hydrogen during photosynthesis It was recycled into glucose .The correct "option is C"

Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

Therefore during this process hydrogen is combined with carbon dioxide to make glucose.

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Answer:yes

Explanation:

Answer:

The correct order for the stages of melting candle wax is:

Explanation:

There are various kind of elements that are present in periodic table. Some elements are harmful, some are radioactive, some are noble gases. Therefore, due to larger atomic size, francium has lower melting and boiling point than lithium.

Periodic table is a table in which we find elements with properties like metals, non metals, metalloids and radioactive element arranges in increasing atomic number.

Francium has lower melting and boiling point than lithium because of the larger atomic size, due to which  lattice energy becomes low.

Therefore, due to larger atomic size, francium has lower melting and boiling point than lithium.

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Answer: 1.005919176541433

Explanation:

44.27 grams of CO2 is 1.0059 moles

as per given in the question,

the mass of [tex]Co_{2}[/tex] is given as 44.27g

need to find how many moles are equal to 44.27g

The molar mass of 1 mole of

[tex]Co_{2}[/tex]=  Molar mass of C +2 x Molar mass of O

[tex]Co_2[/tex] = 12 + 2 x 16

 [tex]Co_2[/tex]= 12 + 32 = 44 g

=> 44 gm of [tex]Co_2[/tex] = 1 mole of [tex]Co_2[/tex]

so, now 44.27 g of [tex]Co_2[/tex] is equal to [tex]\frac{given\ weight}{weight\ of \ 1 mole\ of\ compound }[/tex]

i.e,

 number of moles of [tex]Co_2[/tex] =  [tex]\frac{44.27}{44}[/tex]

   number of moles of [tex]Co_2[/tex] = 1.0059 moles

the number of moles of 44.27 grams of [tex]Co_2[/tex] is 1.0059 moles

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In the given question, the moles of hydrogen that can be obtained from the reaction is 4.75 moles.

The reaction of zinc with hydrochloric acid can be written as:

                              Zn + 2HCl ⇒ ZnCl₂  + H₂

This reaction is a displacement reaction, in which zinc displaces hydrogen from hydrochloric acid. Hydrogen is released from HCl and hydrogen gas appears at the end of the reaction.

It can be seen that 1 mole of zinc combines with 2 moles of HCl to produce 1 mole of hydrogen gas. If 4.75 moles of zinc is combined with an excess amount of HCl, then it will produce 4.75 moles of H₂.

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A. guaranteed salary.

Supervised Agricultural Experience (SAE)

A supervised agricultural experience (SAE) is an organized opportunity for experiential and work-based learning outside of the classroom in a setting other than a school setting that takes place outside of regular school hours in order to enhance a student's industry.

A few examples are cultivating and selling livestock or crops, making and selling farm machinery, purchasing and reselling feed, seeds, and fertilizer, running a pet-care business, or programming and installing computer hardware in tractors.

Programs for supervised agricultural experience fall into one of four categories: exploratory, entrepreneurial, placement, or research/experimentation. The SAE for each student is determined by their interests and the opportunities that are accessible.

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Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, one mole of each element not have the same mass as mole is directly proportional to the given mass.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

Mathematically,

mole =given mass ÷ molar mass

For carbon                                                                            For sulfur

number of moles of carbon= 1                      number of moles of sulfur=1            

mass of 1 mole of carbon=12g                      mass of 1 mole of sulfur=32 gram

From calculation

Molar mass of carbon=12g/mol               Molar mass of sulfur=32g/mol

Therefore, one mole of each element not have the same mass as mole is directly proportional to the given mass.

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Answer:

Density is the substance's mass per unit of volume. The symbol most often used for density is ρ, although the Latin letter D can also be used. Mathematically, density is defined as mass divided by volume.

Weight is a body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing.

Option B is the right answer, Nitrate ions will flow from Cu compartment to Cd compartment.

Define electrochemical cell.

An electrochemical cell is a device that uses electricity to induce a nonspontaneous process or to generate electricity from a spontaneous oxidation-reduction reaction.

Since in the given reaction Cu2+  is going to reduce to Cu and Cd is going to oxidize to Zn2+ . Electrons and cadmium ions will move towards cathode where reduction occurs.

And nitrate ions will move towards anode to maintain a neutral charge, where oxidation occurs.

So, nitrate will flow from Cu compartment to Cd compartment.

Therefore, option B is the right answer, Nitrate ions will flow from Cu compartment to Cd compartment.

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The number of particles in 5.60 moles of ammonium sulfate is equal to  5.06  × 10²⁵ atoms.

Avogadro’s number expresses the number of chemical entities in one mole of a given substance. Generally, Avogadro’s number can express electrons, protons, molecules, atoms, and ions, depending upon the type of chemical reaction or reactant.

The value of Avogadro’s constant is found to be approximately equal to 6.022× 10²³ mol⁻¹.

Given, the number of moles of ammonium sulfate. =  5.60 mol

The molecular formula of ammonium sulfate is (NH₄)₂SO₄.

Number of molecules of ammonium sulfate in one mole = 6.022 × 10²³

The number of atoms in ammonium sulfate in one molecule = 15

Number of atoms of ammonium sulfate in one mole = 15× 6.022 × 10²³

The number of particles in 5.60 mol in (NH₄)₂SO₄ = 15× 6.022 × 10²³×5.60

                                                                        =  5.06  × 10²⁵ atoms

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The cofactors would be required to transfer a carboxyl group onto pyruvate to form oxaloacetate is biotin.

Pyruvаte cаrboxylаse (PC) is а mitochondriаl enzyme bound to biotin thаt cаtаlyzes the conversion of pyruvаte to oxаloаcetаte when аbundаnt аcetyl CoА is аvаilаble, replenishing Krebs cycle intermediаtes in the mitochondriаl mаtrix. PC pаrticipаtes in gluconeogenesis, lipogenesis, аnd neurotrаnsmitter synthesis.

Pyruvate carboxylase is found in the mitochondria and catalyzes the following reaction:

Pyruvate + CO2 + ATP → oxalacetate + ADP

Your question is incomplete, but most probably your full question was

Which of the following cofactors would be required to transfer a carboxyl group onto pyruvate to form oxaloacetate?

A. Thiamine pyrophosphate

B. Tetrahydrofolate

C. Ascorbic acid

D. Cobalamin

E. Biotin

Thus, the correct answer is E.

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Answer:

C.) Calcium

Explanation:

Because none of the answer choices are nonmetals, we can safely assume this compound is not covalent. This means that the atoms involved in this molecule were ions before they bonded.

Chlorine, located in the 17th column, typically ionizes to become the anion Cl⁻. This anion has a negative charge of -1. The subscript indicates that there are 2 chorine ions in the compound, increasing the overall negative charge to -2 (2 x -1 = -2).

Since ionic compounds are neutral, the correct answer choice is the atom that ionizes to form a cation that can make the overall charge of the compound 0. As such, the cation needs to have a positive charge of +2 (+2 + (-2) = 0).

Aluminum = Al³⁺

Sodium = Na⁺

Calcium = Ca²⁺

Argon = does not typically ionize

Therefore, calcium must be the unknown element (X), making the compound CaCl₂.

There are so many types of chemical reaction reaction like combination reaction, double displacement reaction, nucleophilic substitution reaction etc. Therefore, the reaction is nucleophilic substitution reaction. The product formed is 1-bromo-2-methyl-2-phenylethane.

One nucleophile substitutes another in a family of organic reactions known as nucleophilic substitution reactions.

The characteristics of SN1 mechanism:

SN1 stands for nucleophilic substitution reaction.

Leaving group, a nucleophile, electrophile and a solvent are present

Because a link is being severed, the first step is the most laborious.

In the given reaction, firstly H⁺ will attack OH to make good leaving group, then generation of carbocation will take place. Thereafter Br⁻ will attack the carbocation forming C-Br bond. The product formed is 1-bromo-2-methyl-2-phenylethane.

Therefore, the reaction is nucleophilic substitution reaction. The product formed is 1-bromo-2-methyl-2-phenylethane.

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The calories from alcohol are in a Margarita containing 12 grams of alcohol is 84 kcals. Hence, option A is correct.

Margarita can be served on the rocks (with ice) or frozen. Margaritas can be also made with different flavors, such as strawberry, raspberry, or mango. The alcohol content present in margarita can vary from 0% (a vir.gin margarita) to 55% (a super-sized margarita). But basically the average alcohol content of a margarita is around 18-25%.

Calories per gram of alcohol = 7 kcal

Here, the Margarita contains 12 g of alcohol in it.

Hence, total calories of alcohol = 12 x 7 = 84 kcals.

Hence, the calories from alcohol are in a Margarita containing 12 grams of alcohol is 84 kcals.

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Answer:

H2SO4 + 2KOH → K2SO4 + 2H2O

Explanation:

In a neutralization reaction between an acid and a base, the positive ion from the base and the negative ion from the acid usually form a salt. In this case, the positive potassium ion (K+) bonds with the polyatomic sulfate ( S O 2 4 ) to form the salt K 2 S O 4.

The water H O H or H 2 O is formed by the positive hydrogen (H + ) ion from the acid and the negative hydroxide ion (OH) from the base.

Aluminum and copper(II) chloride react very vigorously, causing the reaction mixture to become extremely hot as heat is produced, the aluminum foil to disintegrate, a reddish brown solid to appear, and gas bubbles to be released.

The chemical compound with the formula CuCl2 is copper(II) chloride. Anhydrous form is yellowish brown, but it slowly takes on moisture to become a dihydrate that is blue-green. The extremely uncommon minerals tolbachite and eriochalcite both naturally occur in the anhydrous and dihydrate forms.

The limiting reagent will be copper (II) chloride. The mole ratio is the most crucial tool you'll have to tackle this problem, or any other stoichiometry problem, for that matter. Keep in mind that in order to make 3 moles of copper from 3 moles of copper (II) chloride, you need 2 moles of aluminum.

Thus, Aluminum and copper(II) chloride react very vigorously, causing the reaction mixture to become extremely hot as heat is produced.

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The reaction between solid copper and nitric acid to form copper ii ion nitrogen monoxide gas and water is represented below- - Cu(s) + 4 HNO3(aq) → Cu(NO3)2(s) + 2 NO2(g) + 2 H2O(l).

What is reaction?

One or more chemicals, sometimes referred to as reactants, are changed into one or more new substances, referred to as products, during a chemical reaction.

What is copper?

Throughout the body, copper is a mineral. It maintains the health of your nerve cells and immune system and aids in the production of red blood cells in your body. Additionally, it aids in the formation of collagen, which is essential for the formation of bones and connective tissue. By lowering free radicals that can harm DNA and cells, copper may also have antioxidant properties.

With dilute nitric acid:

3 Cu(s) + 8 HNO3(aq) → 3 Cu(NO3)2(s) + 2 NO(g) + 4 H2O(l)

With conc. nitric acid:

Cu(s) + 4 HNO3(aq) → Cu(NO3)2(s) + 2 NO2(g) + 2 H2O(l)

Therefore, reaction between solid copper and nitric acid to form copper ii ion nitrogen monoxide gas and water is represented below- Cu(s) + 4 HNO3(aq) → Cu(NO3)2(s) + 2 NO2(g) + 2 H2O(l).

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The vapor leaving the condenser cell will be recirculated and mixed with the original inlet stream before entering the reaction cell.

Thermal pollution is a term use to describe the final result caused from the  water used as a coolant by power plants and/or industrial companies. It changes the water temperature and its quality. The substances after the reaction will pass through the condenser.

It is usually caused from humans or companies especially manufacturing companies - They use it for their personal needs. The end product of the water after being discarded is Thermal Pollution.

Therefore, The vapor leaving the condenser cell will be recirculated and mixed with the original inlet stream before entering the reaction cell.

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The types of business activities or operation are:

The  main types of business activities can be seen as the  operating, investing,  as well as the financing.

Investing business activities  can be described as one that is  capitalized over more than one year and it involves how the purchase of long-term assets is made and it can be recorded as a use of cash in the section.

Operating activities can be described a the daily activities of a company which could encompass the process of producing and selling its product, generating revenues, a which can aswell involves the maintenance activities.

Financing activities can be described as the  transactions between a business as well as the lenders and owners to acquire or return resources it can be seen as the activities to fund the company, repay lenders.

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The value of the reaction quotient, Q, for the galvanic cell  for the galvanic cell expressed using shorthand notation is  64×10 ^−3

Zn(s)+2Ag (1.25M)Zn2+ (0.01M)+2Ag in a cell (s).

Q= [Zn ^2+ ]/[Ag ^⊕ ]

Q= 0.01 / (1.25)^2

Q= 64×10 ^−3

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Replacing one gas with another under the same conditions, has no effect on pressure is true for ideal gases but is not always true for real gases.

A theoretical gas known as an ideal gas is made up of several randomly drifting point particles with no interparticle interactions. Because it complies with the ideal gas law, a condensed state equation and can be examined using statistical mechanics, the ideal gas concept is helpful.

Therefore, at room temperature (273 K), nitrogen is an acceptable "ideal gas," although CO2 and H20 may both be condense into liquids at the same temperature by applying pressure.

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The vibrational frequency of this molecule is 8.23×10¹⁴.

The energy of the emitted photon is 0.542eV.

The wavelength is 2290 nm.

The vibrational angular frequency:

W= √k/m = 8.23×10¹⁴

B) Energy difference= hw

∆E = 0.542eV

C) Wavelength = 1240/0.542 = 2290 nm

What is Wavelength?

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Taking into account the definition of molarity and molar mass, the mass of fructose contained in 125ml of a 0.500M fructose solution is 11.43 grams.

Molarity is a measure of the concentration, which indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

molarity= number of moles of solute÷ volume

Molarity is expressed in units moles/L.

The molar mass of substance is defined as its mass per unit quantity of substance. In other words, molar mass is the amount of mass that a substance contains in one mole.

In this case, you have:

Replacing in the definition of molarity:

0.500 M= number of moles of fructose÷ 0.125 L

Solving:

0.500 M× 0.125 L= number of moles of fructose

0.0635 moles= number of moles of fructose

Being the molar mass of fructose 180 g/mole, the mass of the compound can be calculated as:

mass= molar mass× number of moles of fructose

mass= 180 g/mole× 0.0635 moles

mass= 11.43 grams

Finally, the mass of fructose is 11.43 grams.

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