Among nonmetals,which nonmetal is most likely to form a covalent bond?

Answer:

43.4%

Explanation:

Answer: Industrial processes including mining and manufacturing historically have been leading causes of soil pollution. Industrial areas typically have much higher levels of trace elements and organic contaminants. This is due to intentional and unintentional releases from industrial processes directly into the environment, including to the soil, adjacent water bodies, and the atmosphere.

Explanation:

To determine the pH of a solution based on the hydronium ion concentration, you can use the equation:

pH = -log[H₃O⁺]

where [H₃O⁺] is the concentration of hydronium ions.

In this case, the hydronium ion concentration is 6.5x10^-4 M.

Calculating the pH:

pH = -log(6.5x10^-4)

= -log(6.5) - log(10^-4)

= -log(6.5) + 4

Using a calculator or logarithmic tables, you can find that the logarithm of 6.5 is approximately 0.81.

pH ≈ 0.81 + 4

pH ≈ 4.81

Rounding to the nearest whole number, the pH of the solution is approximately 5.

Learn more about pH on:

https://brainly.com/question/2288405

#SPJ1

Answer: calcium ion

Explanation:

Protons, which are positively charged, and neutrons, which have no electric charge, make up the very dense core nucleus of an atom.

"An atomic nucleus contains protons, which have positive charges," In reality, the protons and neutrons that make up an atomic nucleus are called nucleons. The charge of an atomic nucleus is mostly determined by the positive charge of the protons because neutrons are neutral or have no charge.

The smallest, indivisible unit that makes up the substance that gives rise to all chemical elements is referred to as an atom. As a result, atoms are frequently thought of as the basic units of matter, the structure of which defines the nature of a chemical element.

For such more question on Protons.

https://brainly.com/question/1805828

#SPJ4

A solution with nitrate(V) ion concentrations over 0.05 mg/cm3 has a molarity of around 1.61 x 10-5 mol/L.

We must first convert the amount of nitrate(V) ions in drinking water to moles per litre since the threshold concentration over which "Blue-Baby" Syndrome might manifest is 0.05 mg/cm3.

It is necessary to know the molar mass of nitrate(V) ions in order to convert from mg/cm3 to moles per litre (NO3-).

The formula below can be used to determine NO3-'s molar mass:

N: 14.01 g/mol for the atomic mass

O: 16.00 g/mol is the atomic mass (3 oxygen atoms in NO3-)

NO3-'s total molar mass is equal to 14.01 + 16.00 x 3 = 62.01 g/mol.

Let's now translate the specified concentration from mg/cm3 to moles/liter (M).

As 1 g = 1000 mg, 1 mg/cm3 is 0.001 g/cm3.

1 cm3 = 0.001 g/mL multiplied by 0.001 g/cm3

1 L/1000 mL x 0.001 g/mL = 0.001 g/L

We must change the grams into moles using the molar mass in order to get the molarity:

1.61 × 10-5 mol/L = 0.001 g/L / 62.01 g/mol

As a result, a solution with nitrate(V) ion concentrations over 0.05 mg/cm3 has a molarity of around 1.61 x 10-5 mol/L.

To know more about Blue-Baby" Syndrome:

https://brainly.com/question/31992990

#SPJ1

The chemical formula of aspartame is C₁₄H₁₈N₂O₅ and it's relative molecular mass is 294.30 g/mol which is calculated as (12×14)+(1×18)+(14×2)+(16×5).

Molecular  mass of a compound or a molecule is defined as the mass of the elements which are present in it.The molecular mass is considered to be a bulk quantity not a molecular quantity. It is often an average of the of the masses at many instances.

The molar mass and formula mass are used as synonym for the molecular mass.It does not depend on the amount of substance which is present in the sample.It has units of gram/mole.

Molecular masses of an element are given as relative atomic masses while that of compounds is the sum of relative atomic masses which are present in the compound.In case of aspartame it is calculated as,(12×14)+(1×18)+(14×2)+(16×5)=294.30 g/mol.

Thus , relative molecular mass or molecular mass of aspartame is 294.30 g/mol.

Learn more about molecular mass,here:

https://brainly.com/question/18446366

#SPJ1

Answer:

44.8g

Explanation:

The reaction equation is given as:

        4Fe + 3O₂  →  2Fe₂O₃

Given:

Mass of O₂   = 19.2g

Unknown:

Amount of iron used  =?

Solution:

To solve this problem, we adopt the mole concept.

   Since we know the mass of O₂;

         Number of moles  = \(\frac{mass}{molar mass}\)  

 Molar mass of  O₂ = 2(16)  = 32g/mol

           Number of moles = \(\frac{19.2}{32}\)   = 0.6moles

From the balanced reaction equation;

           4 moles of Fe will react with 3 moles of O₂

          0.6moles of O₂ will react with \(\frac{0.6 x 4}{3}\)   = 0.8mole of Fe

Mass of Fe  = number of moles x molar mass

                    = 0.8 x 56

                     = 44.8g

A way to decrease the rate of dissolution of a solid in a liquid is to decrease agitation. Therefore, option B is correct.

A solute in a gaseous, liquid, or solid phase can dissolve in a solvent to create a solution through the process of dissolution.

The greatest concentration of a solute that may dissolve in a solvent at a specific temperature is known as solubility. The solution is deemed saturated when the solute concentration reaches its maximum.

Solubility and solution rate both decrease with rising temperature. The greatest quantity of a solute that can dissolve in a specific amount of solvent or solution at a specific temperature is the solute's solubility.

Thus, option B is correct.

To learn more about the dissolution, follow the link;

https://brainly.com/question/23851972

#SPJ1

The total energy required to heat the water to the final temperature is 290,550.6 J.

The total energy required to heat the water to the final temperature is calculated as follows;

E = Q₁  + Q₂  + Q₃ + Q₄

E = mcΔθ + mf + mcΔθ₂ +  mLv

where;

The heat capacity of the water is calculated as;

E = 93 x 4.2 x (10)  +  334 x 93    +  93 x 4.2 x (121 - 0)  + 2240 x 93

E = 290,550.6 J

Learn more about heat capacity here: https://brainly.com/question/16559442

#SPJ1

HI is the aqueous solution which is the most acidic. Any aqueous solution in chemistry can be divided into one of three groups, including neutral, basic, or acidic solutions.

Any aqueous solution in chemistry can be divided into one of three groups, including neutral, basic, or acidic solutions. Any aqueous solution with a pH 7.0 ([H+] > 1.0 x 10-7 M) is considered an acidic solution.

Water serves as the solvent in an aqueous solution. Solutions that are acidic are sour, whereas alkaline solutions are soapy, thus it's rarely a good idea to try an unfamiliar solution. HI is the aqueous solution which is the most acidic.

To know more about acidic solution, here:

https://brainly.com/question/13208021

#SPJ1

Answer:

220.1 grams of CO2.

Answer:

I think it will carbon hope it helps

Answer:

Explanation:

Given information:

A designed dialysis unit consists of a large no of small hollow fibers,

Considering the one fiber,

By  using the volume of blood, we have :

\(V =\dfrac{\pi}{4}\times D^2 \times L\)

where:

L = 30cm = (30× 10) mm = 300 mm

Volume = 80 ml = 80 × 10³ mm

From the above equation, making D the subject, we have:

\(4 V ={\pi}\times D^2 \times L\)

\(D^2 =\dfrac{4 V }{{\pi}\times L}\)

\(D^2 =\dfrac{4 \times 80 \times 10^3 }{ \pi \times 300}\)

D² = 339.53

\(D = \sqrt{339.53}\)

D = 18.43 mm

D = 1.843 cm

However, suppose we consider the laminar flow, the pressure loss in a single fiber can be determined as follows:

\(\Delta p = \rho g h_f= \dfrac{32* \mu *\overline u*l }{D^2}\)

where;

\(\overline u = \dfrac{4 \times 50 \times 10^3}{\pi \times (18.43)^2}\)

\(\overline u = \dfrac{200000}{1067.088755}\)

\(\overline u =187.43 \ mm/sec\)

\(\overline u =18.743 \ cm/sec\)

Recall:

\(\Delta p = \dfrac{32* \mu *\overline u*l }{D^2}\)

\(\Delta p = \dfrac{32* 3.5 \times 10^{-2} *18.743*30 }{1.843^2}\)

\(\Delta p = \dfrac{629.7648 }{3.396649}\)

\(\Delta p =185.41 \ dyne/cm^2\)

Finally, the number of needed to be used = \(\dfrac{p}{\Delta p}\)

= \(\dfrac{10^5 \ dyne /cm^2}{185.41\ dyne /cm^2}\)

= 539.35

First you have to find the number of moles , then you have to apply stoichometry to find the number of moles of H2 gas , after that you can determine its mass.

Answer:

Memory formation involves similar cognitive processes, such as encoding, storage, and retrieval of information, that are common to all humans regardless of their cultural background. Also, memory formation is a fundamental cognitive function that allows individuals to acquire, retain, and recall information from past experiences or learning, and it is necessary for various cognitive tasks such as learning, problem-solving, and decision-making.

While there could be cultural influences on memory, such as language, social norms, education, and cultural practices, the basic cognitive processes of memory formation are considered to be universal. The encoding process, where information is acquired and processed into a memory representation, is similar across cultures in terms of how sensory information is transformed into neural codes. The storage process, where information is retained over time, and the retrieval process, where information is recalled and brought back into consciousness, are also considered to be universal cognitive functions.

It is important to emphasize that cultural factors can influence how memory is experienced, expressed, and used in different cultures, but the underlying cognitive processes of memory formation are believed to be similar across cultures. Research on memory has been conducted across various cultures and populations, and while there may be cultural variations in memory processes, the basic cognitive mechanisms of memory formation are considered to be universal. It is important to consider cultural context when studying or interpreting memory processes, but the fundamental cognitive processes of memory formation are generally believed to be universal across cultures.

Answer:

Cellular respiration takes the sugar and oxygen to create carbon dioxide and water plus ATP (energy), which helps with the production of energy for cells.

Cellular respiration is important because it is the process by which cells produce energy in the form of ATP, which is essential for the functioning of all cells.

Cellular respiration takes place in the mitochondria, which are organelles found in most eukaryotic cells.

The two cycles depicted in the image above do work together to form a continuous cycle between the two processes.

You can tell that the two cycles work together to form a continuous cycle because they are connected by the transfer of electrons and the production of ATP, which are both essential components of the process of cellular respiration. The first cycle, the citric acid cycle (also known as the Krebs cycle), involves the production of ATP and the transfer of electrons to a molecule called NADH. The second cycle, the electron transport chain, involves the transfer of electrons from NADH to oxygen, which results in the production of water and the release of energy that is used to synthesize ATP. Together, these two cycles form a continuous cycle that allows cells to produce energy through the process of cellular respiration.

Answer:

Graduated cylinder

Explanation:

A graduated cylinder is essentially meant for volume measurement. It is a cylinder that is graduated from zero to a certain number.

The graduated cylinder is gradually filled with water, the volume of water in the cylinder can be known by reading off the graduation on the cylinder, hence the answer above.

The number of moles of excess reagent left after the reaction is complete would be  sodium phosphate  and The mass of excess reagent that will remain unreacted is copper (II) nitrate.

The molar amounts of reactants and products that will result from a balanced chemical equation are shown. Rarely are reactants combined in the exact amount required in the actual world. Before the others, one reactant will be entirely depleted. The limiting reactant is the one that is consumed first in a reaction. The residual amount is deemed "in excess" once the other reactants have been partially consumed.

Calculate the volume of the product each reactant produced to identify the limiting reactant. The limiting reactant is the one that yields the smallest amount of product.

To know more about  excess reagent visit : https://brainly.com/question/11848702

#SPJ9

Cobalt-60 is comprised of 27 protons, 33 neutrons, and 27 electrons. Nuclear reactors are used to artificially create it.

A radioactive isotope containing cobalt with something like a half-life of 5.2713 centuries is called cobalt-60 (60Co). Nuclear reactors are used to artificially create it. Neutron irradiation of bulk material of the monoisotopic as well as mononuclidic cobalt element 59 Co is necessary for deliberate industrial manufacture.

The accidentally generated 60 Co in the latter instance (inside the absence of additional cobalt) is mostly the product of many phases involving neutron activation on iron isotopes inside the reactor. Cobalt-60 is comprised of 27 protons, 33 neutrons, and 27 electrons.

Therefore,  cobalt-60 is comprised of 27 protons, 33 neutrons, and 27 electrons.

To learn more about cobalt- 60, here:

https://brainly.com/question/30518617

#SPJ2

The time that is taken  is obtained as 5.21 × 10⁻⁵ s.

For the zero order reaction that we have, we can see that;

rate = 24.00 × 10²⁵ M/s

From the integrated rate law:

[C₂H₅OH]t = [C₂H₅OH]₀ - 24.00 × 10²⁵ M/s × t

We now obtain the half life as;

t(1/2) = [C₂H₅OH]₀ / 2 × k

t(1/2) = (1.25 × 10²² M) / 2 × (24.00 × 10²⁵ M/s) = 2.60 × 10⁻⁵ s

The time that is required is now obtained as;

[C₂H₅OH]t = [C₂H₅OH]₀ - 24.00 × 10²⁵ M/s × t

0 M = 1.25 × 10²² M - 24.00 × 10²⁵ M/s × t

t = 5.21 × 10⁻⁵ s

The rate constant for the decomposition of ethanol on an alumina surface is 24.00 × 10²⁵ M.

The integrated rate law is: [C₂H₅OH]t = [C₂H₅OH]₀ - 24.00 × 10²⁵ M/s × t

If the initial concentration of C₂H₅OH was 1.25 × 10²² M, the half-life is 2.60 × 10⁻⁵ s.

The time required for all the 1.25 × 10²² M C₂H₅OH to decompose is 5.21 × 10⁻⁵ s.

Learn more about zero-order kinetics here: brainly.com/question/13314785

#SPJ1

The wavelength of lambda is 2.93 m. = (c)/(v) = (3 xx 10(8) ms-(-1), 102.5 xx 10(6)s-(-1), 2.93 m' 2.93 meters is the wave length. 27 Jun 2022.

In order to get a radio wave's wavelength, divide its frequency by the speed of light (c = 299 792 458 m). The following is the formula for determining a radio wave's wavelength: Wavelength is equal to c/f, where c is the speed in meters per second, and f is the frequency in Hertz.

A wave train's speed (v) in a medium is equal to its frequency (f), hence the formula for wavelength is v/f. Wavelength is typically represented by the Greek symbol lambda ().

To know more about wavelength  visit :-

https://brainly.com/question/13533093

#SPJ1

Answer:

D

acid+base-----> salt + water

The heat that is absorbed by the system is  1363 J. Option B

We know that in a chemical reaction that there could be the absorption or the evolution of heat. We say that there is the evolution of heat when heat has been lost from the system and there is the absorption of heat when heat has been gained by the system.

Number of moles of the barium hydroxide hydrate = 3.15 g/203 g/mol

= 0.015 moles

Number of moles of the ammonium thiocyanate = 1.52/76 g/mol

= 0.02 moles

If 1 mole of barium hydroxide hydrate reacts with 2 moles of  ammonium thiocyanate

0.015 moles of barium hydroxide hydrate reacts with 0.015 * 2 moles/1 mole

= 0.03 moles

Hence the limiting reactant is the ammonium thiocyanate.

Now the heat that is absorbed is;

H = mcdT

m = mass of the water

c = Heat capacity

dT = Temperature change

H = 100 * 4.20 * 3.1

H = 1363 J

Learn more about heat capacity:https://brainly.com/question/28302909

#SPJ1

Answer:

∆H = - 450 kJ/mol

Explanation:

You can calculate the change in enthalpy provided we have the heat of solution (q). That would be the only approach to this problem. But this approach is only possible if we have a specific set-up; we would have to use a calorimeter. So then the reactants are taken as the system, and water as the surroundings. When calculating q, the heat of the solution, we take 4.18. Remember that heat is flowing from the reaction mixture, to the water, from the system to surroundings, so it's exothermic and ∆H = negative:

e. The radius of the metal cylinder is 1.27 cm / 2 = 0.635 cm.

f. The volume of the metal cylinder is 4.745 cm³

g. The density of the metal cylinder is 7.53 g/cm³

Data given:

b. Mass of metal cylinder: 35.732 g

c. Length of metal cylinder: 3.15 cm

d. Diameter of metal cylinder: 1.27 cm

e. Radius of metal cylinder: The radius (r) of a cylinder is half of its diameter. Therefore, the radius of the metal cylinder is 1.27 cm / 2 = 0.635 cm.

To calculate the volume (V) of the metal cylinder;

V = πr²h, where π is approximately 3.14159, r is the radius, and h is the height (length) of the cylinder.

Volume of metal cylinder:

V = 3.14159 * (0.635 cm)² * 3.15 cm = 4.745 cm³

Density of metal cylinder:

Density (ρ) is defined as mass (m) divided by volume (V). Therefore, the density of the metal cylinder is ρ = 35.732 g / 4.745 cm³ = 7.53 g/cm³ (rounded to two decimal places).

So, the radius of the metal cylinder is 0.635 cm, the volume is 4.745 cm³, and the density is 7.53 g/cm³.

Learn more about density and volume at: https://brainly.com/question/1354972

#SPJ1

The change in enthalpy when 3 moles of methane react in excess oxygen is -2.67 × 10³ kJ (Option B).

Enthalpy (H) is a thermodynamic property that describes the total heat content of a system at a constant pressure. It is a measure of the energy that is transferred as heat during a chemical reaction or physical change at constant pressure.

Enthalpy is defined mathematically as:

H = U + PV

where U is the internal energy of the system, P is the pressure, and V is the volume. Enthalpy is often measured in units of Joules (J) or kilojoules (kJ).

The given reaction is:

CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l) ΔH = -890 kJ

This equation shows that when one mole of methane reacts with two moles of oxygen, it produces one mole of carbon dioxide and two moles of water while releasing 890 kJ of energy.

To determine the change in enthalpy when 3 moles of methane react in excess oxygen, we need to first calculate the amount of heat released when one mole of methane reacts with excess oxygen.

From the balanced chemical equation, we can see that 1 mole of CH4 releases 890 kJ of energy, so the energy released by 3 moles of CH4 would be 3 times that value:

Energy released by 3 moles of CH4 = 3 × (-890 kJ/mol) = -2670 kJ

To know more about internal energy, visit:

https://brainly.com/question/14668303

#SPJ1

The change in enthalpy when 3 moles of methane react in excess oxygen is -2670 kJ.

What is Enthalpy?

Enthalpy is a thermodynamic property of a system that describes the heat content of the system at constant pressure. It is denoted by the symbol "H" and is expressed in units of joules (J) or kilojoules (kJ). Enthalpy is a state function, which means that it depends only on the initial and final states of the system, not on the path taken to reach those states.

The given reaction is: CH4 (g) + 2O2 (g) → CO2 (g) + 2H2O (l), ΔH = −890 kJ

This reaction is for one mole of methane. To find the change in enthalpy when 3 moles of methane react, we need to multiply the enthalpy change by 3:

ΔH = 3 × (-890 kJ/mol) = -2670 kJ

Therefore, the change in enthalpy when 3 moles of methane react in excess oxygen is -2670 kJ.

Learn more about Enthalpy from given link

https://brainly.com/question/14047927

#SPJ1