Which element in the periodic table would be the mot likely to gain electron in a chemical bond

Answer:

question 1 i believe is c i will put the other answeres in comments

when i finish the test

Explanation:

The carbon cycle plays an important in maintaining carbon balance on the earth.

The carbon cycle is the cycle by which carbon is recycled between the atmosphere and the geosphere.

In the carbon cycle, the process of recycling carbon do not include deep burial, compaction, and cementation.

Volcanic eruptions are one natural way that carbon can move OUT of the geosphere.

Fossil fuels, atmosphere, land biomass and rocks are all carbon reservoirs, but fossil fuels contains the MOST carbon.

The atmosphere is the carbon reservoir that changes the quickest and has the biggest direct effect on climate.

Ocean acidification occurs because the ocean absorbs more human-produced CO2, causing the acidity to increase.

A potential impact of ocean acidification is that ocean ecosystems may suffer, making it harder for humans to get food from the ocean.

Therefore, the carbon cycle is important in maintaining carbon balance on the earth.

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Chemical transformation of a carbon-carbon double bond is the addition reaction.

Explanation:

Consequently, if the bond energies of the product molecules are greater than the bond energies of the reactants, the reaction will be exothermic.

hope it helps

The correct order of increasing electronegativity for the given set of elements is: s, p, si, f, where fluorine (F) has the highest electronegativity and sodium (Na) is not included in the set.

Electronegativity is a property that describes the tendency of an atom to attract electrons towards itself when it is part of a chemical bond. In general, electronegativity increases across a period from left to right and decreases down a group in the periodic table.

Looking at the given sets of elements: p, f, si, s and s, f, p, si, we can determine the order of increasing electronegativity.

The correct set of elements arranged in order of increasing electronegativity is: s, p, si, f.

Fluorine (F) is the most electronegative element in the periodic table, and it attracts electrons strongly due to its small atomic size and high effective nuclear charge. Therefore, it has the highest electronegativity.

Following fluorine, oxygen (O) has a higher electronegativity than sulfur (S), which in turn has a higher electronegativity than phosphorus (P). This is because electronegativity generally increases across a period from left to right.

Silicon (Si) is less electronegative than phosphorus but more electronegative than sulfur. It is positioned in the middle of the order.

Lastly, sodium (Na) is less electronegative than silicon and is not included in the given set.

(Note: The set s, f, p, si is not in the correct order of increasing electronegativity, as fluorine should have the highest electronegativity.)

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b) FALSE A feasible solution must attempt to satisfy all the major constraints in the problem.

A basic viable solution in the theory of linear programming is one that has a small number of non-zero variables. Each viable solution polyhedron's corner correlates geometrically to a BFS. There must be an optimum BFS if there is an optimal solution.

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The electron configuration for a neutral atom in the ground state with a total of 6 valence electrons is 1s²2s²2p⁴, option A.

The distribution of electrons in an element's atomic orbitals is described by the element's electron configuration.

Atomic electron configurations adhere to a standard nomenclature in which all atomic subshells that contain electrons are arranged in a sequence with the number of electrons they each possess expressed in superscript. For instance, sodium's electron configuration is 1s22s22p63s1.

For  a neutral atom such as oxygen , whose atomic number is 8 , has 8 electrons .2 electrons are present in its 1st shell and 6 valence electrons are present in its outermost shell or 2nd shell , such that the electronic configuration of the atom becomes 1s²2s²2p⁴.

The arrangement of an atom's or molecule's electrons in atomic or molecular orbitals is known as the electron configuration in atomic physics and quantum chemistry.

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Complete question:

Which is the electron configuration of a neutral atom in the ground state with a total of six valence electrons?

1) 1s^2 2s^2 2p^4

2) 1s^2 2s^2 2p^6

3) 1s^2 2s^2 2p^2

4) 1s^2 2s^2 2p^6 3s^2 3p^6

The initial pH of the analyte solution can be determined using the Henderson-Hasselbalch equation, which relates the pH of a solution to the pKa and the ratio of the concentrations of the acid and its conjugate base.

The pKa of acetic acid is 4.76. The initial concentration of acetic acid is 0.0700 M, and the concentration of its conjugate base (acetate ion) can be calculated from the stoichiometry of the reaction (1:1) and the volume and concentration of the KOH solution used in the titration. Once the concentrations of the acid and its conjugate base are known, the pH can be calculated using the Henderson-Hasselbalch equation. The initial pH of the analyte solution is 4.74. To determine the initial pH of the 30.00 mL, 0.0700 M acetic acid solution (analyte solution) before titration with 0.0900 M KOH, we can use the Ka expression for weak acids. Acetic acid (CH₃COOH) is a weak acid with a Ka value of 1.8 x 10⁻⁵. By setting up an ICE table (Initial, Change, Equilibrium) and solving for the hydrogen ion concentration [H⁺], we can find the initial pH.

In this case, initial [CH₃COOH] = 0.0700 M, [H⁺] = 0, and [CH₃COO⁻] = 0. After calculating the equilibrium concentrations and substituting them into the Ka expression, we can find the [H⁺]. Finally, use the pH formula, pH = -log[H⁺], to calculate the initial pH of the analyte solution.

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Hence, the probability that the mean cholesterol level of the sample will be greater than 217 is 0.034. Answer: 0.034.According to the given statement, we have the following data.

mean (μ) = 205 mg/dLstandard deviation

(σ) = 35 mg/dLsample size

(n) = 46(a) Probability that the mean cholesterol level of the sample will be no more than 205.To find this, we will use the z-score formula.z

= (x - μ) / (σ/√n)Here,

x = 205

μ = 205

σ =

35n

= 46Plugging in these values, we get,

z = (205 - 205) / (35/√46)

z = 0Hence, the probability that the mean cholesterol level of the sample will be no more than 205 is 0.5. Answer: 0.5

(b) Probability that the mean cholesterol level of the sample will be between 200 and 210:

To find this, we need to standardize the values and use the z-table.P(z < (210 - 205) / (35/√46)) - P(z < (200 - 205) / (35/√46))P(z < 1.65) - P(z < -1.65) = 0.4495 - 0.0505

= 0.3990Hence, the probability that the mean cholesterol level of the sample will be between 200 and 210 is 0.3990. Answer: 0.3990

(c) Probability that the mean cholesterol level of the sample will be less than 195: To find this, we need to standardize the values and use the z-table.P(z < (195 - 205) / (35/√46))P(z < -2.91) = 0.002Hence, the probability that the mean cholesterol level of the sample will be less than 195 is 0.002. Answer: 0.002

(d) Probability that the mean cholesterol level of the sample will be greater than 217: To find this, we need to standardize the values and use the z-table.P(z > (217 - 205) / (35/√46))P(z > 1.82) = 0.034 Answer: 0.034.

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Answer:

1)physical change

Explanation:

2)chemical change

Answer: The new pressure of the gas at this volume is 10 atm.

Explanation:

Given: \(V_{1}\) = 250 mL,        \(P_{1}\) = 1.00 atm

\(V_{2}\) = 25.0 mL,          \(P_{2}\) = ?

According to Boyle's law, at constant temperature the pressure of an ideal gas is inversely proportional to volume.

Therefore, formula used is as follows.

\(P_{1}V_{1} = P_{2}V_{2}\)

Substitute the values into above formula as follows.

\(P_{1}V_{1} = P_{2}V_{2}\\1.00 atm \times 250.0 mL = P_{2} \times 25.0 mL\\P_{2} = 10 atm\)

Thus, we can conclude that the new pressure of the gas at this volume is 10 atm.

The product formed when water, in the presence of sulfuric acid, is added to 2-methyl-2-pentene would be 2-methyl-2-pentanol.

The sulfuric acid acts as a catalyst, allowing the water to add to the double bond of the 2-methyl-2-pentene molecule. This creates a hydroxyl group, -OH, on each of the two carbon atoms in the double bond and forms a new molecule of 2-methyl-2-pentanol. This reaction is a type of hydration reaction, which is a reaction between an alkene and water, and it is an example of an addition reaction. The reaction is exothermic, meaning it releases heat and creates a hydroxyl group, which is an alcohol-functional group. This reaction is also reversible, meaning that it can be reversed by adding heat.

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Answer: a. Accuracy  how close is your measurement tot the true value

Explanation:

Which one of the following is a measure of the certainty of a

result comparing to a given value or the agreement of

measurements?

a. Accuracy  how close is your measurement tot the true value

b. precision; how close are yourr measurements to each other

c. Percentage: the ratio of tour measurement to the true value X 100

d. Uncertainty: how unsure are you of your measurements

Answer:

This is false.

Explanation:

This is false because water freezes at 32 degrees faraheint and carbon would freeze at a different temperature.

Answer:

Valence electrons are negatively charged particles located in the outermost shell of atoms that can be transferred or shared with other atoms. Valence electrons are important in chemistry because the number of valence electrons in a particular atom can be used to determine how the atom will react chemically with other atoms.

Gravity is a (n) force between objects and depends on an object's size and their distance apart.

Gravitational force is the attractive that exist between all object with mass an object with mass attracts another object with mass the magnitude of the force is directly proportional to the masses of the two objects and inversely proportional to the square of the distance between the two objects

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Answer:

4

Explanation:

A carbon atom has 4 electrons in its outermost shell (2s^2p^2).  All are unpaired (none share their orbital with another electron).  So all four are anxious to pair with another electron.  Once it has found 4 more electrons contributed from other atom(s), it will have 4 pairs of shared electrons.

Hydrogen has one lone electron.  An atom of H is downright gleeful in sharing it's electron with elements such as carbon, C.  Since carbon has 4 unpaied electrons, it will combine with 4 H atoms.  At that point, cabon is sharing 4 electron pairs.

Answer:

nickel 48.1063%

Phosphorus 16.9245%

Oxygen 34.9692%

The percent composition of each element like nitrogen, oxygen and phosphorous in Ni₃(PO₄)₂ are 48.03%, 34.97% and 16.93% respectively.

Percent composition of any element present in any compound will be calculated as:
% comosition = (Mass of element / Mass of compound)×100%

Mass of Ni₃(PO₄)₂ compound = 366.02 g/mol

Molar mass of 3 Nitrogen atoms = 3×58.6 = 175.8 g/mol

Moar mass of 2 Phosphorous atoms = 2×31 = 62 g/mol

Moar mass of 8 Oxygen atoms = 8×16 = 128 g/mol

% comosition of Nitrogen = (175.8/366.02)×100% = 48.03%

% comosition of Oxygen = (128/366.02)×100% = 34.97%

% comosition of Phosphorous = (62/366.02)×100% = 16.93%

Hence % composition of nitrogen, oxygen and phosphorous is 48.03%, 34.97% and 16.93% respectively.

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The frequency of a red laser that has a wavelength of 676 nm would be 4.43 x \(10^{14\) hertz.

The frequency and wavelength of a wave are related by the following equation:

λf = c

Where λ is the wavelength of the wave in meters, f is the frequency in Hertz, and c is the speed of light in a vacuum.

in this case, λ = 676 nm = 6.76 x \(10^{-7\) m

c = 299,792,458 m/s

Making f the subject of the formula:

f = c/λ

  = 299,792,458/6.76 x \(10^{-7\)

  = 4.43 x \(10^{14\) hertz

In other words, the frequency of a red laser that has a wavelength of 676 nm would be 4.43 x \(10^{14\) hertz.

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The statement that is true about nonelectrolytes is that nonelectrolytes do not dissociate in water. This means that they do not produce ions when dissolved in water.

Nonelectrolytes are compounds that do not conduct electricity when dissolved in water. They are also unable to form ions in a solution. Ethanol, glucose, and sucrose are examples of nonelectrolytes. Electrolytes are chemical compounds that can conduct electricity when dissolved in water. Electrolytes are divided into two types, strong and weak electrolytes. NaCl and HCl are examples of strong electrolytes, while CH₃COOH and NH₄OH are examples of weak electrolytes.

Nonelectrolytes do not dissociate in water, unlike electrolytes, which break up into cations and anions when dissolved in water. When an electric potential is placed across an electrolyte, these ions transport electrical charge, whereas nonelectrolytes do not.

Among the given options, "Nonelectrolytes do not dissociate in water" is the statement that is true about nonelectrolytes.

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Delocalization of pi (π) electrons refers to the spreading of electrons over a larger region than would be expected in a localized bond. The carbonate ion, CO32-, exhibits delocalization of its pi electrons, which can account for its structure and stability.

In the carbonate ion, the three oxygen atoms are bonded to the central carbon atom in a planar arrangement. The double bonds between the carbon and oxygen atoms consist of both sigma (σ) and pi (π) bonds. The pi electrons are delocalized over the three oxygen atoms, resulting in the formation of a resonating structure.

This delocalization of pi electrons contributes to the stability of the carbonate ion by reducing the repulsive forces between the negatively charged oxygen atoms. The delocalization of the pi electrons spreads the negative charge over a larger region, reducing the strength of the repulsive forces between the oxygen atoms and allowing the carbonate ion to maintain its planar structure.

In addition, the delocalization of the pi electrons increases the electron density around the central carbon atom, making it more difficult for the carbonate ion to react with other species and increasing its stability.

In summary, the delocalization of pi electrons in the carbonate ion, CO32-, contributes to its stability by reducing the repulsive forces between the negatively charged oxygen atoms and increasing the electron density around the central carbon atom. This delocalization of pi electrons plays a key role in determining the structure and stability of the carbonate ion.

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Answer:

Carbon

Explanation:

Carbon is the most important element to life. Without this element, life as we know it would not exist. As you will see, carbon is the central element in compounds necessary for life.

Answer:

Carbon is the most important element

Answer:

0.13 molL-1

Explanation:

We must first obtain the number of moles of sodium carbonate as follows;

Number of moles = mass/molar mass

Number of moles = 21.2 g/106 g/mol

Number of moles= 0.2 moles

Number of moles = concentration × volume

Volume = 1.50 L

Concentration = number of moles/volume

Concentration = 0.2 moles/1.5 L

Concentration = 0.13 molL-1

Answer:

The correct answer is 24.31 amu.

Explanation:

The formula for finding the average atomic mass = The sum of the percentage abundance of isotopes × the actual mass of isotopes

The average atomic mass = % abundance of Mg-24 × actual mass + % abundance of Mg-25 × its actual mass + % abundance of Mg-26 × its actual mass

Avg. Atomic mass = 0.7870 × 23.98504 + 0.1013 × 24.98584 + 0.1117 × 25.98259

Avg. atomic mass = 18.88 + 2.53 + 2.90 = 24.31 amu

The atomic mass of magnesium is 24.31 amu.

The volume of the 3.5 M HCI that is required to completely neutralize the 50.0 ml of the 2.0 M NaOH is 28.57 mL.

The molarity of the HCl, M₁ = 3.5 M

The volume of the HCl, V₁ = ?

The molarity of the NaOH, M₂ = 2.0 M

The volume of the NaOH, V₂ = 50 mL

To neutralize the reaction , the volume of the HCl required is as :

M₁ V₁  = M₂ V₂

Where,

M₁ = 3.5 M

V₁ = ?

M₂ = 2 M

V₂ = 50 mL

( 3.5 × V₁ ) = ( 2 × 50 )

3.5 V₁  = 100

V₁ = 28.57 mL

The volume of the HCl required to completely neutralize is the 28.57 mL with the molarity of the HCl is the 3.5 M.

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A smaller amount of energy is wasted by the incandescent bulb.

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Answer:

the nucleus is made up of protons and neutrons

Yes, the chemist can identify the substance in the sample.

When describing a compound's mass per mole, the term "molar mass" is employed. The molar mass is determined by multiplying the individual masses of all the atoms that make up a compound.

K₂O has a molar mass of 94.2 g/mol.

has a molar mass of 110.196 g/mol.

By multiplying the masses of each individual atom—one K atom weighs 39.0983 g/mol, whereas one O atom weighs 15.999 g/mol—the molar masses are obtained.

When the mass of a pure compound is known, the mass of oxygen (O) can be calculated by subtracting the mass of potassium (K) from the total mass. Since each of the mentioned compounds contain two K atoms, the difference in oxygen mass can be utilised to identify the pure chemical.

For instance, after deducting the mass of the K from the unknown molecule, the residual mass will be approximately 16 g if the compound is K₂O and approximately 32 g if the compound is K2O2.

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The complete question is

The compound K2O2 exists. A chemist can determine the mass of K in a sample of known mass that consists of either pure K₂O or pure K2O2. From this information, can the chemist answer the question of which compound is in the sample? Explain

To find the molar solubility of substance X, we need to convert the given solubility from milligrams per liter (mg/L) to moles per liter (mol/L). The molar solubility of substance X is 1.28 × 10^(-10) mol/L.

Step 1:

We need to convert 2.4×10−5 mg/L to grams per liter (g/L) by dividing by 1000, which gives us 2.4×10−8 g/L.

Solubility = 2.4 × 10^(-5) mg/L
1 mg = 0.001 g, so:
Solubility = 2.4 × 10^(-5) × 0.001 g/L = 2.4 × 10^(-8) g/L

Step 2:
Next, we need to convert the mass to moles using the molar mass of substance X.

Molar mass = 188 g/mol
Molar solubility =2.4×10−8 g/L ÷ 188 g/mol = 1.28×10−10 mol/L
This is the molar solubility of substance X.

The molar solubility of substance X is 1.28×10−10 mol/L.

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Answer:

I believe it is E because the battery has a wire, a power source(the battery), and a bulb connected together thus making a full series circuit. Furthermore, the more batteries they are to a series circuit, the more dimmer the light bulbs will be.