What happens with electrons when atoms form covalent bonds?

Answer:

To determine how many grams of NaOH are produced from 120 grams of Na₂O, we need to first understand the chemical reaction that occurs when Na₂O is converted to NaOH. The reaction is as follows:

2 Na₂O + 2 H₂O → 2 NaOH + O₂

This reaction shows that for every 2 molecules of Na₂O that are converted to NaOH, 2 molecules of water are also produced.

Next, we need to determine the molar mass of Na₂O and NaOH. The molar mass of Na₂O is 61.98g/mol, and the molar mass of NaOH is 40.00g/mol.

Now we can use the molar masses to determine how many grams of NaOH are produced from 120 grams of Na₂O. First, we need to convert the mass of Na₂O from grams to moles by dividing by the molar mass:

120g Na₂O / 61.98g/mol = 1.94 mol Na₂O

Next, we need to multiply the number of moles of Na₂O by the conversion factor from the chemical reaction (2 mol NaOH / 2 mol Na₂O) to determine the number of moles of NaOH produced:

1.94 mol Na₂O * (2 mol NaOH / 2 mol Na₂O) = 1.94 mol NaOH

Finally, we can convert the number of moles of NaOH to grams by multiplying by the molar mass of NaOH:

1.94 mol NaOH * 40.00g/mol = 77.6g NaOH

Therefore, 120 grams of Na₂O will produce approximately 77.6 grams of NaOH.

Sodium bicarbonate or sodium hydrogen carbonate also known as baking soda is an ionic compound because it contains ions in it.

Ionic bond which is also known as electrovalent bond is a type of linkage that is formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Ionic bonds are the bonds that are formed when the valence (outermost) electrons of one atom are transferred permanently to another atom.

Baking soda or sodium bicarbonate (NaHCO₃) is an ionic compound since it consists of positive and negative ions. Ionic compounds are generally formed when a metal and a nonmetal combine and covalent compounds are usually formed by a combination of nonmetals.

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Answer:

Explanation:

Oxygen has two allotropic forms, diatomic (O2) and triatomic (O3, ozone).

The solution can be described as a supersaturated solution.

Potassium chlorate is an inorganic compound composed of potassium, chlorine and oxygen. It is an oxidizing agent and a white crystalline solid at room temperature. It is used as a bleaching agent, in fireworks, matches, explosives, and fertilizers. It is also used to make chloric acid and in the production of paper, dyes, and textiles. Potassium chlorate is highly reactive and can be hazardous if not used properly. It is important to use personal protective equipment when handling it.
This means that the solution contains more of the dissolved compound than it can normally hold at the given temperature. In this case, the water is holding more potassium chlorate than it would normally be able to hold at the given temperature. As the temperature increases, the solubility of a substance increases, allowing more potassium chlorate to be dissolved.
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The resulting molarity of the given solution is 0.5 M.

NaOH (mw = 40) is produced by dissolving 20 grammes of the base in 1 litre of water. Find the molarity of this solution. Because molarity counts the number of moles in a litre of a solution, the solution is 0.5 molar.

The equation for calculating molarity from moles and volume is rather simple. Just multiply the moles of solute by the volume of solution.

Molarity=no:of moles/volume of solution(in l)

              =20/40

              =0.5

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The opposite process of freezing is-Boiling

Boiling is the quick evaporation of a fluid that occurs when it is heated to the boiling point, which is the temperature when the liquid's vapour pressure equals the i.e. changes on the liquid by the outer air. Freezing is a phase transition that occurs when the heat of a liquid falls below its freezing temperature. According to the internationally accepted definition, freezing refers to the crystallisation phase change of a liquid or even the strimmer of a substance, which is usually caused by cooling. In science, boiling occurs when a liquid turns into a gas, forming bubbles within the liquid volume. Water is the most commonly used boiled liquid in cooking.

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The difference in electronegativity between the atoms forming the chemical bonds inside the compound determines whether a compound is ionic or covalent.

When a metal reacts with a nonmetal, ionic compounds are formed. When two nonmetals respond with each other, covalent compounds are formed. A chemical bond is the attractive force that holds together all the atoms and groups of atoms inside a chemical species. This same electrostatic force of attraction among two oppositely charged ions is known as an ionic bond. Ionic bonds connect metals and nonmetals. A covalent bond is also known as a shared bond. These bonds link nonmetals together.

If the electronegativity difference between both the atoms forming the bond is greater than 2.00, the bond is ionic, and ionic compounds contain ionic bonds. If the difference in electronegativity between both the atoms forming the bond is between 0.00 and 2.00, the bond is a covalent bond, and the compound is a covalent compound.

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The valence electron configuration is:

6d^9 7s^1 6d^9 7s^1 . Darmstadtium has 10 valence electrons.

Chemically speaking, darmstadtium has the atomic number 110 and the letter Ds. Darmstadtium, a transition metal, is predicted to be a solid at ambient temperature.

It is solely employed at this time for research. No known biological function of darmstadtium exists. a synthetic substance of which just a few atoms have ever been manufactured. It is created in a heavy ion accelerator by joining nickel and lead atoms.

Unknown facts surround the radioactive, synthetic element known as darmstadtium. Since it is a metal, one would anticipate that it would be a solid at ambient temperature. The initial atoms that were created only lasted for 1/100th of a second, but scientists later created heavier, more stable variants.

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At 20°C, the solubility of NaCl in water is approximately 36.0 g/100 mL, or 36.0 g/L.

Solubility is the ability of a substance to dissolve in a liquid. It is a measure of how much of a substance can be dissolved in a given amount of a liquid. Solubility is affected by temperature, pressure, and the presence of other substances. Different substances have different solubilities; for example, sugar is more soluble in water than salt.

This means that at this temperature, 36.0 g of NaCl will dissolve in every 100 mL of water, or 36.0 g of NaCl will dissolve in every liter of water. The solubility of NaCl is temperature dependent, meaning that the solubility will change as the temperature changes.

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Answer:

C) Reaction with dilute action

Explanation:

Metals are good conductors of electricity and heat.

Non-metals are insulators that don't allow heat and electricity to pass through them. Hence, non-metals are bad conductors of electricity and heat.

Atomic-scale views and there clasifications:

The world of chemistry is filled with an incredible diversity of elements and compounds, each with its own unique properties and characteristics. Understanding the differences between pure elements, pure compounds, and mixtures can help us to better understand these materials, and how they interact with each other. In this essay, we will look at the defining characteristics of each type of substance, and explore their applications in the world of chemistry.

Pure elements are substances composed of only one type of atom. Examples of pure elements include oxygen, hydrogen, and iron. These elements have distinct chemical and physical properties, and because they are not combined with any other elements, they do not form compounds. Pure elements are essential for all life on Earth, as they form the building blocks of all biological molecules. They are also used in a wide variety of industries, from automobile manufacturing to consumer electronics.

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The nuclear reaction is expressed as  [tex]\left \ {{74} \atop {32}} \right Ge[/tex] ⇒ [tex]\left \ {{74} \atop {31}} \right Ge[/tex] +  [tex]\left \ {{0} \atop {+1}} \right e[/tex] and  [tex]\left \ {{11} \atop {12}} \right C[/tex] ⇒ [tex]\left \ {{11} \atop {11}} \right C[/tex] +  [tex]\left \ {{0} \atop {+1}} \right e[/tex]

A proton undergoes positron decay, which results in the creation of neutrons, electron neutrinos, and positron particles. This particle has a +1 unit charge.

[tex]\left \ {{A} \atop {Z}} \right X[/tex] ⇒ [tex]\left \ {{A} \atop {Z-1}} \right X[/tex] +  [tex]\left \ {{0} \atop {+1}} \right e[/tex]

The positron decay mode is especially useful for detection and quantification using outside measurement. When a proton is converted to a neutron and a positron, or "+-particle," is simultaneously emitted from the nucleus of a neutron-deficient isotope, the decay process starts [2]. With the exception of its positively rather than negatively charged charge, the positron shares many physical characteristics with an electron. The positron that is released is slowed down by energy loss to the surrounding matter along its route before combining with an electron.

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The resulting molality is 0.17 m, and the freezing point depression is -114.1°C.

Freezing point is the temperature at which a liquid will turn into a solid. It is usually measured in degrees Celsius. When a liquid reaches its freezing point, the molecules slow down and lose energy, causing them to become arranged in a solid crystalline pattern. The freezing point of water is 0°C (32°F) but this varies for other substances. For example, the freezing point of alcohol is much lower than that of water.
The freezing point of the solution is -114.1°C. This is calculated using the formula ΔTf = iKf·m, where ΔTf is the freezing point depression, i is the Van't Hoff factor, Kf is the freezing point constant of water, and m is the molality of the solution. For a solution of ethyl alcohol, i is 2 and Kf is 1.86 °C·m⁻¹. The molality of the solution is calculated by dividing the mass of the solute (20.0 g) by the mass of the solvent (590.0 g) and the molar mass of the solute (46.07 g/mol). The resulting molality is 0.17 m, and the freezing point depression is -114.1°C.
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The concentration of the solution is 11.11%.

Concentration is a measure of how much of a given substance is present in a given volume or mass of another substance. Measuring and understanding the concentration of a solution is important in a variety of fields, such as chemistry, biology, and medicine.
20 grams of solid is dissolved in 180 grams of water, which is equal to 20/200 x 100 = 11.11%. This means that the solution has a concentration of 11.11%. This is also known as a mass-by-mass percent concentration.
To calculate the concentration of a solution, divide the mass of the solute (the solid) by the total mass of the solution (the solid plus the solvent, which is water in this case). Then, multiply the result by 100 to get the concentration in percent.
It is important to note that the concentration of a solution is dependent on the ratio of solute to solvent, and that the concentration can be expressed in different ways, such as molarity or molality. The concentration of a solution can also be expressed in terms of parts per million (ppm) or parts per billion (ppb).
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Scope 3 emissions, also known as "other indirect emissions," are greenhouse gas (GHG) emissions that result from activities that are not under the control or ownership of the reporting organization, but are a part of its value chain.

There are many different categories of scope 3 emissions, and the specific categories that an organization reports on will depend on the nature of its business and the scope of its value chain. Some common categories of scope 3 emissions include:

Purchased goods and services: GHG emissions that result from the production, transportation, and disposal of goods and services that an organization purchases from external suppliers.

Capital goods: GHG emissions that result from the production, transportation, and disposal of capital goods, such as buildings and equipment, that an organization purchases or uses.

Fuel- and energy-related activities: GHG emissions that result from the use of fuel or energy by employees, customers, or other stakeholders while using an organization's products or services.

Business travel: GHG emissions that result from air, rail, and road travel by employees and business partners.

Waste generated in operations: GHG emissions that result from the disposal of waste generated by an organization's operations.

Leased assets: GHG emissions that result from the use of leased assets, such as vehicles or equipment.

Upstream transportation and distribution: GHG emissions that result from the transportation and distribution of an organization's products before they reach the customer.

Downstream transportation and distribution: GHG emissions that result from the transportation and distribution of an organization's products after they have been sold to the customer.

Use of sold products: GHG emissions that result from the use of an organization's products after they have been sold to the customer.

End-of-life treatment of sold products: GHG emissions that result from the disposal or recycling of an organization's products after they have reached the end of their useful life.

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Answer:

Phosphorus

Explanation:

Atomic number of phosphorus is 15. Its electronic configuration is 2,8,5. So, it needs 3 electrons to fulfill its outermost shell and attain stability. Thus, its valency is 3.

A pH close to 0 (zero) indicates an acidic solution, and a pH value near 14 indicates a basic solution.

pH value of a solution can be described as the negative logarithm of hydrogen (H⁺) ions concentration. Mathematically, pH can be defined as inversely proportional to the concentration of hydrogen ions.

pH = -log ( [H⁺])

In chemistry, the pH scale is generally used to indicate the acidity or basicity of an aqueous solution. Acidic solutions are determined to have lower pH than basic solutions.

The pH scale runs ranges from 0 to 14 while the pH value of 7.0 is neutral. A low pH value (about 1 or 2) is generally acidic and a high pH (12 or 14) is generally basic.

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Your question is incomplete, most probably the complete question was,

The pH scale runs from 0 to 14 and is an indication of how acidic or basic a solution is. A pH close to zero indicates a(n) _______ solution, and a pH near 14 indicates a(n) _______ solution.

Example of a buffer is KF/HF and Na₂CO₃/NaHCO₃. The buffer is a combination of weak and strong entities of any salt present in the liquid solution.

A weak acid, KF, has the conjugate base F-. HCO₃⁻ is the conjugate acid of the weak base CO3²⁻. A weak acid and the conjugate base of the weak acid, or a weak base and the conjugate acid of the weak base, are combined to form the buffer solution, a water-based solvent solution. They withstand being diluted or having modest amounts of acid or alkali added to them without changing their pH. When a tiny amount of a strong acid or strong base is added, the pH of buffer solutions barely changes. They are therefore employed to maintain a consistent pH level.

Hence, buffer is works in range of pH and concentrations.

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The average atomic mass of silver is approximately 108.3324. The mass of an atom is defined as its atomic mass.

The two isotopes of silver are Ag-107 (60 neutrons) and Ag-109 (62 neutrons).

To calculate the average atomic mass of silver, we need to multiply the mass of each isotope by its natural abundance, then add these values together.

Ag-107 has a mass of 107

Natural abundance of 51.83%,

so its contribution to the average atomic mass of silver is 107 * 0.5183 = 55.8391

Ag-109 has a mass of 109 and a natural abundance of 48.17%,

so its contribution to the average atomic mass of silver is 109 * 0.4817 = 52.4933

The average atomic mass of silver is the sum of these two values,

which is 55.8391 + 52.4933 = 108.3324.

So, the average atomic mass of silver is approximately 108.3324.

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The chemical described in the question is likely to affect the organelles called chloroplasts and mitochondria.

Chloroplasts are organelles found in plant cells that are responsible for photosynthesis, the process by which plants convert light energy into chemical energy. They contain pigments such as chlorophyll, which absorbs light energy and converts it into chemical energy in the form of ATP (adenosine triphosphate). If the production of proteins involved in the capture and storage of energy is blocked, chloroplasts will be unable to produce ATP, which is an essential energy source for plants.

Mitochondria are organelles found in the cells of all eukaryotes (organisms with cells that contain a nucleus and other membrane-bound organelles). They are the main site of cellular respiration, the process by which cells convert energy stored in organic molecules into ATP. If the production of proteins involved in the capture and storage of energy is blocked, mitochondria will be unable to produce ATP, which will affect the energy metabolism of the cell.

Overall, the chemical described in the question is likely to have a detrimental effect on the energy metabolism of plants, leading to reduced growth and vitality.

The first reaction is addition reaction, second reaction is substitution reaction, and third reaction is elimination reaction.

In organic chemistry, addition reaction refers to an organic reaction in which two or more molecules combine to generate a bigger one (the adduct). An addition reaction occurs when two or more reactants combine to form a product without the loss of any atoms present in the reactants. A substitution reaction refers to a chemical reaction during which one functional group in a chemical compound is replaced by another functional group.  It is chemical reactions in which an atom, ion, or group of atoms or ions in a molecule is replaced by another atom, ion, or group. An elimination reaction refers to is a type of chemical reaction where several atoms either in pairs or groups are removed from a molecule. The removal usually takes place due to the action of acids and bases or the action of metals.

Note: The question is incomplete. The complete question is attached.

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After solving the equation the molarity is 1.15 M.

Molarity is a measure of the concentration of a solution that is expressed in terms of the number of moles of solute per liter of solution. It is an important parameter in chemistry as it is often used to determine the amount of a given substance in a solution. Molarity is denoted by the symbol M, and it is calculated by dividing the number of moles of solute by the volume of the solution in liters. For example, if one liter of a solution contains 0.2 moles of solute, then the molarity of the solution is 0.2 M. Molarity is also used to determine the amount of a given substance in a solution by multiplying the molarity by the volume of the solution.

Molarity (M) is a measure of the concentration of a solute in a solution, defined as the number of moles of solute per liter of solution.
To calculate the molarity of 29.0 g of C2H5OH in 545 ml of solution, first we must convert the mass of ethanol to moles. Since the molar mass of ethanol (C2H5OH) is 46.07 g/mol, 29.0 g of ethanol corresponds to 0.63 mol.
The next step is to calculate the volume of the solution in liters. Since 1 mL is equal to 0.001 L, 545 mL is equal to 0.545 L.
Now we can calculate the molarity of the solution:
Molarity = (moles of solute) / (liters of solution)
Molarity = 0.63 mol / 0.545 L
Molarity = 1.15 M

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Homologous structures are the Structures from creatures with a common ancestry.  Homologous structures are modified differently to perform various tasks in various organisms.

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Answer:

The reaction of 112 cm³ of chlorine at STP with an excess of sodium can produce 0.292 grams of NaCl.

Explanation:

The reaction of chlorine with sodium can produce sodium chloride (NaCl), which is also known as table salt. To determine how many grams of NaCl can be produced by this reaction, we need to know the molar mass of NaCl and the number of moles of chlorine that are reacted.

The molar mass of NaCl is 58.44 g/mol. This means that 1 mole of NaCl has a mass of 58.44 grams.

To find the number of moles of chlorine that are reacted, we need to convert the volume of chlorine from cubic centimeters (cm³) to liters, and then use the ideal gas law to calculate the number of moles. At standard temperature and pressure (STP), 1 mole of any gas occupies a volume of 22.4 liters. Therefore, the number of moles of chlorine can be calculated as follows:

moles = (volume of chlorine at STP) / (volume of 1 mole of any gas at STP)

In this case, the volume of chlorine is 112 cm³, which is equivalent to 0.112 liters at STP. Therefore, the number of moles of chlorine can be calculated as follows:

moles = 0.112 liters / 22.4 liters/mol

This gives a result of 0.005 moles of chlorine.

Since the reaction produces an excess of sodium, we can assume that all of the chlorine that is reacted is converted into NaCl. Therefore, the mass of NaCl that is produced can be calculated by multiplying the number of moles of chlorine by the molar mass of NaCl:

mass = (number of moles) * (molar mass of NaCl)

In this case, the mass of NaCl that is produced is 0.005 moles * 58.44 g/mol = 0.292 grams.

Therefore, the reaction of 112 cm³ of chlorine at STP with an excess of sodium can produce 0.292 grams of NaCl.

Use the orbital-filling diagram to show the electron configuration of phosphorus, P is 1s2 2s2 2p6 3s2 3p3.

The electron configuration is the configuration of electrons in atomic or molecular orbitals within an atom, molecule, or other physical structure. For instance, the electron configuration of the neon atom is 1s2 2s2 2p6, which indicates that there are, respectively, 1, 2, and 6 electrons in each of the 1s, 2s, and 2p subshells. Each electron moves independently within an orbital while being surrounded by an average field created by all other orbitals, according to electronic configurations. Mathematically speaking, configurations are described by Slater determinants or configuration state functions. The Bohr model of the atom is still extensively employed when describing electron configuration, and the phrases shells and subshells are still frequently used, despite advances in our understanding of the quantum mechanical structure of electrons. An electron shell is the set of potential states that an electron could occupy. All of these states have n as their primary quantum number (the number that comes before the letter in the orbital designation).

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Scope 2 emissions are indirect emissions produced from purchased energy including electricity, steam, heating, and cooling.

A simple shorthand you can use to remember scope 2 is “purchase” because your organization typically buys energy to run its operations.

Scope 2 emissions come from purchased electricity, steam, heating, or cooling. You can normally calculate scope 2 emissions based on the consumption outlined in energy bills.

What we mean when we say steam, heat, and cooling: it must be generated off-site.

Essentially, it’s what you purchase from a utility or other supplier—for instance, district heating and cooling, or steam used in industrial processes.

It should not be confused with heat you generate on-site by using a boiler or furnace or cooling your facility with an electricity-powered AC unit.  

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The mass of Barium-122 left is 0.313 g. All nuclear reactions are of first order reactions.

A first-order reaction is one in which the rate of reaction is proportional to the concentration of the reactant. For a first order reaction rate constant,

k = ( 2.303 /t )x log ( Mo / M)

Where

Mo = initial mass= 10.0 g

M= Mass left after time t = ?

t = time = 10 min

k= rate constant= 0.693/half life

= 0.693/2 min

= 0.3465 min^-1

Plug the values we get log(Mo/M) = (kt)/2.303

= (0.3465*10)/2.303

= 1.504

Mo/M=10^1.504 = 31.9

M= 10.0g/31.9

  = 0.313 g

So, mass of Barium-122 left is 0.313g.

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Therefore, the initial Bohr orbit's radius is r=0.53(1)22=0.265 A. The mean radius of an electron's orbit around the nucleus of a hydrogen atom in its ground state.

This radius' value, a, is determined by a physical constant that is roughly equivalent to 5.29177 x 10 -11 metres (m). Logic and Approach: Z is the first atomic number, or atom. Therefore, rn = 0.529n2 is the radius of the nth orbit. The Bohr orbit's(a0), a physical constant, is roughly equivalent to the distance between the nucleus and electron hydrogen in the ground state of a hydrogen atom. Due of its significance in the Bohr model of an atom, it bears Niels Bohr's name. 5.29177210903(80)1011 m is its value.

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