Which of the following has the smallest mass? A. An electron B. An atomic nucleus C. A proton D. A neutron

The correct option is ,H2 + 2OH- → 2H2O .

Electrons are the lowest of the elements that constitute a molecule, and thus hold a negative charge. In a neutral atom, there are an equal number of ions and neutrons. One proton and one hydrogen are all that the hydrogen atom has. From the other hand, the uranium atom possesses 92 protons, which means 92 electrons.

Briefing :

Now we have introduced more hydrogen, so we need to balance hydrogen on the left side in acidic solution, we get

[tex]2H^{+} +H_{2} O_{2}[/tex] → [tex]2H_{2} O[/tex]

Now all the atoms are balanced but charge is not balanced. We see that the left side there are two positive charge. So, we balance the charge by adding two negative charge on the left side in the reaction, we get

[tex]2e^{-} +2H^{+} +H_{2} O_{2}[/tex] → [tex]2H_{2} O[/tex]

Therefore, the correct option is,

[tex]2e^{-} +2H^{+} +H_{2} O_{2}[/tex] → [tex]2H_{2} O[/tex]

To know more about electrons visit:

https://brainly.com/question/12001116

#SPJ4

Answer:

Chlorophyll

Explanation:

im pretty sure

The temperature increase of octane if the molar heat capacity of octane is 254.0 J/K•mol is 0.197K.

The temperature of a substance can be calculated using the following expression:

Q = mc∆T

Where;

According to this question, 0.07 moles of a sample of octane absorbed 3.5 kJ of energy. The temperature increase of octane if the molar heat capacity of octane is 254.0 J/K•mol. can be calculated as follows:

3.5 = 0.07 × 254 × ∆T

3.5 = 17.78∆T

∆T = 0.197K

Therefore, 0.197K is the temperature increase.

Learn more about temperature at: https://brainly.com/question/14281142

#SPJ1

Answer:

which question do you need assistance with?

We can see from the images attached that a precipitate of silver chloride is formed as shown.

We know that a precipitate is a substance that that separates out of the solution as a solid. Thus if we have an aqueous phase reaction in which there is the combination of two of the reactants which are aqueous solutions. However, when the substnaces are mixed, we obtain a product that is solid. This solid product is whet we call the precipitate of the reaction that has just taken place.

As I said the precipitate would tend to separate out of the solution and then when that happens, we can see that the solid would be in a distinct phase from the rest of the solution.

In this case, the mixture of the sliver nitrate and the sodium chloride would produce a silver chloride precipitate that would separate out of the solution.

Learn more about precipitate:https://brainly.com/question/16950193

#SPJ1

The volume of gas  is 32.84 L.

given that :

Volume V1 = 90 L

Temperature T1 = 39 °C

pressure P1 = 740 mmHg

Volume V2 = ?

Temperature T2  = 15 °C

pressure P2 = 780 mmHg

according to the ideal gas equation we get :

P1 V1 / T1 = P2 V2 / T2

V2 = (P1 V1 T2) / P2 T1

V2 = ( 740 × 90 × 15 ) 780 × 39

V2 = 32.84 L

Thus, A ga balloon ha a volume of 90. 0 liter when the temperature i 39 °C and the pressure i 740. 0 mmHg. it volume be at 15. 0 °C and 780. 0 mmHg is 32.84 L

To learn more about volume here

https://brainly.com/question/19298097

#SPJ4

The standard enthalpy of formation for CH4, Fe, and Cl2 are all zero. The standard enthalpy of formation for N2 is not zero, as it is equal to -57.6 kJ/mol.

What is enthalpy?
A thermodynamic system's enthalpy, which is one of its properties, is calculated by adding the system's functional energy to the product of the its pressure and volume. It is a state function that is frequently used in measurements of chemical, biological, as well as physical systems at constant pressure, which the sizable surrounding atmosphere conveniently provides. The pressure-volume term describes the effort needed to create space for the system by displacing it's own surroundings in order to determine its physical dimensions. For solids and liquids under typical conditions, the pressure-volume word is very small, whereas it is only moderately small for gases. Therefore, enthalpy serves as a stand-in for energy throughout chemical systems; enthalpy differences are what are commonly referred to as bond, lattice, and solvation "energies" in chemistry.

To learn more about enthalpy
https://brainly.com/question/14291557
#SPJ4

The  Sodium chloride reacts with fluorine gas to produce solid sodium fluoride and chlorine gas is 2Na+F₂→2NAF.

What is Sodium chloride ?

One of the most prevalent minerals on Earth and a crucial nutrient for many animals and plants is sodium chloride (NaCl), also known as salt. Seawater and underground rock formations are two natural sources of sodium chloride.

What is fluorine?

The most reactive element in all of chemistry is fluorine (F), which is also the first member of the halogen family. Both fluorides and fluorides-containing compounds, both organic and inorganic, are referred to by the terms "fluoride" and its ionic form (F-), respectively.

∴2Na+F₂→2NAF

Therefore, Sodium chloride reacts with fluorine gas to produce solid sodium fluoride and chlorine gas is 2Na+F₂→2NAF.

Learn more about Sodium chloride from the given link.

https://brainly.com/question/28106660

#SPJ4

The octahedral splitting diagram of the complex has been shown in the image attached to this answer.

We know that if a complex is said to posses the octahedral geometry, it means that the crystal field splitting of the complex is due to the presence of six ligands which acts as point charges.

The  octahedral splitting is common in the ions or the transition metal atoms that have a [tex]d^6[/tex] configuration. In the case of tungsten metal here, there are six electrons as we can see from the electron configuration of the atom; [Xe] 6s² 4f¹⁴ 5d⁴.

Learn more about octahedral splitting diagram:https://brainly.com/question/17204989

#SPJ1

For the combustion of 1 mole of diamond at room temperature, the standard entropy change is 6.22 J/K mol.

The reaction is given as :

C (diamond)  + O₂   ----->  CO₂

At room temperature the value of S°  is given as follows :

carbon, C = 2.38 J / Kmol

oxygen, O₂ = 205.2 J/Kmol

carbon dioxide, CO₂ = 213.8 J/Kmol

The standard entropy change is given as :

ΔS° = ∑S° product  - ∑ S° reactant

ΔS° = ( 213.8 ) - ( 2.38 + 205.2)

ΔS° = 213.8 - 207.58

ΔS° = 6.22  J / K mol

The standard entropy change for the combustion of 1 mole of diamond at room temperature is 6.22  J / K mol.

learn more about standard entropy here

https://brainly.com/question/24278877

#SPJ4

The reaction results in the formation of salt and water, and the net ionic formula is often given by: H+ + OH- --> H2O

Give an illustration of what an ionic equation is:

The electrolyte in aqueous are expressed as dissociated ions in ionic equations, which are chemical equations. Example: 1) Ag+(aq) + Cl-(aq) AgCl >> Salt chloride(aq) + argent nitrate(aq) platinum chloride(s) + salt nitrate(aq) (s) 2) Hydrochloric acid + sodium (s) -> sodium chloride (aq) + hydrogen (g).

How is an ionic formula written?

You first must identify the ion and note its sign and charge before you can determine the formula for an anion. Then, after determining the anion's identity, note its symbol and charges. The two ions should then be combined to create an electrically neutral molecule.

To know more about ionic equation visit:

https://brainly.com/question/13887096

#SPJ4

A measure of how compact matter is is what density means. How much "stuff" is crammed into an area, to put it simply.

In science, density is defined as the ratio of an object's mass to volume. Mathematical and scientific density comparisons are done using a formula.

In disciplines, such as physics, the focus is on things and matter and relates the notion to the rules of nature.

It is a calculable and manipulable formula in mathematics. In other disciplines, such as social sciences, density relates with population. The amount of people in a specific land area produces the population density.

Therefore, A measure of how compact matter is is what density means. How much "stuff" is crammed into an area, to put it simply.

To learn more density, refer to the link:

https://brainly.com/question/15164682

#SPJ1

To account for their effects on osmotic pressure, the concentration of electrolytes is often expressed in mole per liter.

Concentration is the amount of a substance in a particular space. Another definition of concentration is the proportion of the solute to the solvent or total solution. Typically, mass per unit volume is used to denote concentration. However, the solute concentration can also be expressed in volumetric or molecular units. Instead of using volume, concentration can be expressed as a mass per unit. Despite the fact that chemical solutions are frequently used to describe concentration, it can be calculated for any combination. Unit is mole/liter.

To know more about concentration visit : https://brainly.com/question/20344485

#SPJ4

ethanol acid and methanoic acid were used to prepare the ester compounds.

what are esters ?

Esters are carboxylic acid derivatives in which the hydrogen of the carboxylic acid (-COOH) has been replaced by an alkyl group (-R) such as methyl, ethyl, or a benzene ring such as phenyl. The ester functional group is denoted by the symbol -COOR. Esters are present in flowers and fruits, which give them their aroma. Esters are a particularly significant family of acid derivatives since they are used in a wide range of synthetic items such as fragrances, insecticides, solvents, and so on. An ester's name is made up of two parts. First, the alkyl group R' is directly linked to one of the oxygens in RCOOR'. The second portion is the name of the parent acid, with the '-ic acid' ending converted to '-ate' for ester.

ethanol acid and methanoic acid were used to prepare the ester compounds.

To learn more about esters follow the given link: https://brainly.com/question/15890361

#SPJ4

The orbital diagram of the eight electron atom is shown in the image attached.

The Hund's rule states that the electrons that are found in atom must be filled singly first before pairing can occur. In this case we are dealing with an atom that has a total of eight electrons.

In looking at the orbital diagram, we are going to observe that the five orbitals would first be filed then we would now start to pair the orbitals until we fill in all of the eight electrons as shown in the image attached.

Learn more about orbital diagram:https://brainly.com/question/28809808

#SPJ1

Answer:

We have an electron that has six electrons, and there are two electrons that singly occupy the 2p orbitals. According to Hund's rule, electrons arise singly in an atom before pairing occurs.

Explanation:

The molecular formula of the Allicin is, C₁₈H₃₀S₆O₃ and the empirical formula is C₆H₁₀S₂O

the molecular formula can be calculated as follows:

If a percentage is provided, we will assume that the entire mass is 100 grams.

As a result, each element's mass is equal to the percentage indicated.

C weighs 44.4 g.

H weighs 6.21 g.

S weighs 39.5 g.

O's mass is 9.86 g.

C has a molar mass of 12 g/mole.

H has a molar mass of 1 g/mole.

S has a molar mass of 32 g/mole.

O has a molar mass of 16 g/mole.

first, convert given masses into moles.

Moles of C =      mass C       =    44.4 g      = 3.7 moles

                    molar mass C       12 g/mole.

Moles of H =      mass H       =    6.21 g.      = 6.21 moles

                      molar mass           1 g/mole.

Moles of S =      mass S       =    39.5 g.      = 1.23 moles

                      molar mass          32 g/mole.

Moles of O =        mass O       =    9.86 g.      = 0.62 moles

                      molar mass          16 g/mole.

then we find the mole ratio by divide each value of moles by the smallest number of moles calculated.

For C = 3.7 moles = 5.96 ≈ 6

           0.62 moles

For H = 6.21  moles = 10.01≈ 10

           0.62 moles

For S = 1.23 moles = 1.98 ≈ 2

           0.62 moles

For O = 0.62 moles = 1

             0.62 moles

The ratio of C : H : S : O = 6 : 10 : 2 : 1

The Empirical formula is C₆H₁₀S₂O

The empirical formula weight = 6(12) + 10(1) + 2(32) + 1(16) = 162 gram/eq

Now we have to calculate the molecular formula of the compound.

Formula used :

n= molecular formula = 486 =3

    empirical formula     162

Molecular formula = (C₆H₁₀S₂O)₃ =C₁₈H₃₀S₆O₃

Therefore, the molecular of the compound is, C₁₈H₃₀S₆O₃

learn more about molecular formula here: https://brainly.com/question/16904381

#SPJ4

The hybridization of the atomic orbitals in the central atom of a molecule lowers the overall energy of the molecule due to the maximization of the orbital overlap in the chemical bond.

The hybridization of the atomic orbitals is a process in chemistry associated with the combination of two different atomic orbitals in a hybrid orbital after the formation of a particular molecule.

Therefore, with this data, we can see that the hybridization of the atomic orbitals depends on the formation of molecules.

Learn more about the hybridization of the atomic orbitals here:

https://brainly.com/question/29514826

#SPJ1

Answer:

if an element has atomic number of 15 then the atom has 15 electrons also.

Option (b)

Explanation:

remember the atomic number of an element is also the number of protons of that element, we know that protons have a positive charge, neutrons have no charge and electrons have a negative charge.

we also know that an element is atomically neutral, meaning it overall has no charge, this is because the positive proton attracts a negative electron and hence their charges cancel off.

this is why in all elements, the atomic number(proton number) will always be equal to the electron number.

Note the neutron number cannot be predicted this way, as far as I know, the neutron purpose is mainly to add Mass to the atom so that it can be more stable, though often times the neutron number is similar to the proton number also. You're not required to learn off atomic masses as far as I know because it will be given to you in the exams

The balanced chemical equation for the combustion reaction of heptane is:

[tex]C_7H_16+11O_2\longrightarrow 7CO_2+8H_2O[/tex]

The chemical equation in which the number of atoms of each type of element is equal on the reactant, as well as the product side of the equation, is known as a balanced chemical equation.

From the law of conservation of mass, the total mass of the elements on either side of the equation must be equal in a balanced chemical equation.

Given the combustion reaction of heptane can be represented as:

[tex]C_7H_16+11O_2\longrightarrow 7CO_2+8H_2O[/tex]

Therefore, the coefficients required to balance the chemical equation are 1, 11, 7, and 8.

Learn more about the balanced chemical equation, here:

brainly.com/question/28294176

#SPJ1

Social engineering types of infiltration techniques does one open up to by posting sensitive personal information and details about one's workplace on social networking sites.

What is the which means social engineering?

Social engineering is an assault vector that is predicated closely on human interplay and frequently includes manipulating human beings into breaking regular safety techniques and satisfactory practices to benefit unauthorized get entry to systems, networks or bodily places or for economic benefit.

Is social engineering a cybercrime?

Social engineering is a manipulation approach that exploits human blunders to benefit personal information, get right of entry to, or valuables. In cybercrime, these “human hacking” scams generally tend to trap unsuspecting customers into exposing data, spreading malware infections, or giving get right of entry to constrained systems.

To know more about social engineering, click here- brainly.com/question/26072214

#SPJ4

The Solubility cannot be calculated.

Solubility indicates the maximum amount of a substance that can be dissolved in a solvent at a certain temperature. Such a solution is called saturated. Divide the mass of the compound by the mass of the solvent and multiply by 100g to calculate the solubility in g/100g.

The solubility of ionic solutes does not always increase with increasing temperature. In exothermic solution reactions, solubility can decrease with increasing temperature. The number of moles of solute dissolved in a given volume of solution does not represent the solubility of the solution. They dissolve more readily and solubility increases with increasing temperature.

Learn more about The Solubility here:- https://brainly.com/question/23946616

#SPJ4

Answer:

The answer is A. Heat is also named as thermal energy. The terms thermal energy and heat energy are often used interchangeably as they both involve power created by heat.

According to the soil texture triangle, if we have 25% silt, 25% clay, and 50% sand, then the soil is Sandy clay loam.

According to soil texture triangle 25% silt, 25% clay and 50% sand having the sandy clay loam structure. This type of soil has the sand as a major content but it also have clay and silt with definite proportion. This soil is used for the purpose of guarding. But this soil cannot hold more amount of water as well as nutrients which requires for the growth of plant.

Hence, the type of the soil is sandy clay loam soil.

Learn more about types of soil from the link given below.

https://brainly.com/question/19176089

#SPJ4

The theoretical yield is 5.154 g

What is P- aminophenol?

White, reddish-yellow, or light brown crystals or powder make up P-AMINOPHENOL. when exposed to light, becomes violet. (NTP, 1992) One of the three potential isomers of amino phenol is 4-aminophenol, which has a single amino substituent next to the phenolic -OH group. As a metabolite, it serves a purpose.

Given,

P- aminophenol = 6.944 g

M.W OF P- aminophenol = 109.15 g/mol

Acetic anhydride = 3.490 g

M.W of acetic anhydride = 109.09 g/mol

M.W of acetaminophen = 151.16 g/mol

M.W of acetic acid = 60.052 g/mol

STEP 1

Calculate the mole of a given reactant

Mole of p-aminophenol = 0.0636 mol

Mole of acetic anhydride = 0.0341 mol

STEP 2

Write the balanced chemical equation

           H2NC6H4OH + (CH3CO)2O → C8H9NO2 + CH3COOH

at t=o    0.0636 mol       0.0341 mol

at t-=t     0.02965mol      0 mol              0.0341 mol     0.0341 mol

here, we can see that 1 mole of p aminophenol reacts with 1 mole of acetic anhydride and gives 1 mol of acetaminophen and 1 mole of acetic acid.

Therefore acetic anhydride is a limiting reactant because it has less mole than p- aminophenol

So,

0.0341 mole of acetaminophen will form.

Theoretical yield of acetaminophen = mole X M.W = 0.0341 X 151,1 = 5.154g

To know more about theoretical yield, click the link given

https://brainly.com/question/2765357

#SPJ4

The balance equation is [tex]Cu + 2AgNO_3 \rightarrow Cu(NO_3)_2 + 2Ag[/tex]

Balanced equation means that the number of atoms in the reactant side and the number of atoms in the product side is equal.

Let's check whether the given equation is balanced or not.

[tex]Cu + 2AgNO_3 \rightarrow Cu(NO_3)_2 + 2Ag[/tex]

Reactant Side     Product Side

Cu = 1                  Cu = 1

Ag = 2                 Ag = 2

N = 2                    N = 2

O = 6                    O = 6

From the above equation we can say that all the atoms in the product side and reactant side are equal so this is a[tex]Cu + 2AgNO_3 \rightarrow Cu(NO_3)_2 + 2Ag[/tex] balanced chemical equation.

Learn more about the Balance Chemical Equation here: https://brainly.com/question/11904811

Question:

Write the balance chemical equation for this statement:

Aqueous silver nitrate reacts with solid copper to form a cupric nitrate solution and silver crystals.

Propanoic acid has an infrared spectrum that includes broad peak from 2500- 3300 cm and a sharp strong peak at 1710-1760cm.

The broad peak of carboxylic acid is caused by -OH from 2500 to 3500 cm⁻¹, and the strong peak caused by the carbonyl bond is from 1700 to 1725 cm⁻¹.

So propanoic acid is the answer.

A typical infrared spectrum can be visually separated into two areas at first glance. The left half, above 2000 cm⁻¹, often has few peaks but contains some extremely diagnostic data. The presence of saturated carbons is first shown by alkane C-H stretching absorptions just below 3000 cm⁻¹, and by signals just above 3000 cm⁻¹ showing unsaturation. Exchangeable protons, often from alcohol, amine, amide, or carboxylic acid groups, are indicated by a very broad peak in the range between 3100 and 3600 cm⁻¹. Since there are typically no additional absorptions at the frequencies between 2800 and 2000 cm⁻¹, the presence of alkyne or nitrile groups can be clearly recognized here.

Hence, Propanoic acid has an infrared spectrum that includes broad peak from 2500- 3300 cm and a sharp strong peak at 1710-1760cm.

To learn more about infrared spectrum refer- https://brainly.com/question/5951360

#SPJ4

Ksp is 7.6×10^-9. Ksp,  the solubility product derives from the solubility expression CaF2 --> Ca2+  + 2F-

The solubility product constant,  Ksp ​, is the equilibrium constant for a solid substance dissolving in an aqueous solution. It represents the level at which a solute dissolves in solution. The more soluble a substance is, the higher the  Ksp  value it has.

Ksp = [Ca2+][2F-] / [CaF2]

However,  [CaF2(s)] , the concentration of a solid is a meaningless quantity.

Thus, Ksp = [Ca2+][2F-]

Given this expression, we simply fill in the blanks:

Ksp = (1.24×10−3)(2×1.24×10−3)2

=4×(1.24×10−3)^3
= 7.6×10^-9

To know more about solubility constant, visit

https://brainly.com/question/1419865

#SPJ1

Ksp is 7.6×10^-9. Ksp,  the solubility product derives from the solubility expression CaF2 --> Ca2+  + 2F-

A solid substance dissolving in an aqueous solution has an equilibrium constant called the solubility product constant, Ksp. It shows the rate of solute dissolution in a solution. A substance's Ksp value increases with solubility.

Ksp = [Ca2+][2F-] / [CaF2]

However,  [CaF2(s)] , the concentration of a solid is a meaningless quantity.

Thus, Ksp = [Ca2+][2F-]

Given this expression, we simply fill in the blanks:

Ksp = (1.24×10−3)(2×1.24×10−3)2

=4×(1.24×10−3)^3

= 7.6×10^-9

To know more about solubility constant, visit

https://brainly.com/question/1419865

#SPJ1

The possible way to describe the [tex]SO_3[/tex] component in the reaction would be 8 molecules or 8 atoms of [tex]SO_3[/tex], Options 1 and 2.

Each component of a reaction has its state. Recall that matters are anything with weight and occupies space.  

In the reaction: [tex]S_8 (s) + 12O_2(g) -- > 8SO_3(g)[/tex]

Eight moles of sulfur react with 12 moles of oxygen molecules to produce 8 moles of sulfur (III) oxide. According to the reaction:

The amount of gas can be described in terms of its number of molecules and its number of atoms. Thus, either 8 molecules or 8 atoms of sulfur (III) oxide can be used to describe the amount of [tex]SO_3[/tex] produced in the reaction.

More on states of matters can be found here: https://brainly.com/question/29476563

#SPJ1