chemical bonding allows each atom involved in the bond to fill its ______________.

Answers

Answer 1

chemical bonding allows each atom involved in the bond to fill its outer shell.

Chemical Bonds

Atomic or elemental bonds depend on the energy level in which the outermost electron e- or e- resides.

The first shell, the innermost level, can hold up to two electrons.

The second can hold up to 8 electrons.

The third can hold up to 8 electrons.

An atom

is stable or non-reactive if the outermost energy level (shell) holds the maximum number of electrons. It does not bond with other atoms. Does not form chemical bonds,

or compounds.

To become stable, atoms gain, lose, or share electrons to complete their outermost energy levels (electron shells).

octet rule because levels 2 and 3 need 8 electrons to be stable.

Look at the outermost electron shells (energy levels).

VALENCE

The number of electrons in the outer energy plane (shell) determines (tells) the valence of the atom.

Having 8 electrons in the outermost shell (the octet rule) determines the valence of the atom (it's a number).

Note: The "group number" in the periodic table indicates the number of electrons in the outermost shell. From this we can read how many electrons the atom must lose or gain to reach 8.

The valence is the number of electrons an atom loses or gains in order to have a perfect outer shell (it is always the minimum number).

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Related Questions

which compound should have the largest lattice energy? which compound should have the largest lattice energy? nai kf sri2 mgo cacl2

Answers

Among the following compounds, magnesium oxide compound has the largest lattice energy.

What is lattice energy?

The amount of energy released when ions unite to form ionic solids, or the amount of energy needed to separate a compound into its ions, is known as lattice energy.

Lattice energy is influenced by two factors:

ion charge (greater the charge higher is the lattice energy)the ion's size (smaller the size of ion greater is the lattice energy)

K has a charge of +1, and Mg has a charge of +2 in KCl and MgO. Additionally, K + has a greater ionic radius than Mg +2. Therefore, when both components are included, MgO has a larger lattice energy than KCl.

Therefore, magnesium oxide compound has the largest lattice energy.

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does a reaction occur when aqueous solutions of copper(ii) acetate and chromium(iii) bromide are combined? yesno if a reaction does occur, write the net ionic equation.

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When aqueous solutions of copper(ii) acetate and chromium(iii) bromide are mixed, does a reaction occur? If a reaction occurs, put down the net ionic equation.

Yes, it is.

3Cu(CH3COO)2 +2CrBr3 —> 3CuBr2 + 2Cr(CH3COO)3

What exactly is a chemical reaction?

A chemical reaction is the chemical transformation of one set of chemical substances into another.

It is a reaction with two displacements.

What exactly is the Double Displacement reaction?

A salt metathesis reaction, also known as a double displacement reaction, is a chemical reaction that involves the exchange of bonds between two reacting chemical species, producing products having comparable or equal bonding affiliations.

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In a chemical reaction, one or more reactants are changed into one or more products, which are then changed back into one or more reactants. For instance, the chemical reaction between oxygen and magnesium results in the formation of white magnesium oxide powder. 2Mg+O2→2MgO.

What is the short definition of a chemical reaction?

Chemical reaction illustration

In a chemical reaction, one or more substances—also known as reactants—are changed into one or more additional substances—also known as products.

What does the Double Displacement reaction exactly entail?

A salt metathesis reaction, often referred to as a double displacement reaction, is a chemical process in which bonds between two chemical species are exchanged, resulting in the production of compounds with comparable or equal bonding affiliations.

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a sample of xenon gas occupies a volume of 5.01 l at 437 k. if the pressure remains constant, at what temperature will this same xenon gas sample have a volume of 1.83 l?

Answers

at 159.6 K temperature will this same xenon gas sample have a volume of 1.83 l

Calculation :

Initial voume(V₁)= 5.01 L

Initial Temperature = 437 K

Final Volume(V₂) = 1.83 L

Final Temperature(T₂) =  ?

at constant Temperature,

    Therefore,

              [tex]\frac{V1}{T1} = \frac{V2}{T2}[/tex]

         [tex]\frac{5.01 L}{437 K} = \frac{1.83 L}{T2}[/tex]

        T₂ = [tex]1.83*\frac{437}{5.01}[/tex]

         = 159.6 K

at 159.6 K temperature will this same xenon gas sample have a volume of 1.83 l

Temperature is a measure of hot or cold expressed on one of several scales, including Fahrenheit and Celsius. Temperature indicates the direction in which heat energy spontaneously flows. H. From hot body (high temperature) to cold body (low temperature).

The current temperature map shows the current temperature with contour lines every 5 degrees Fahrenheit. Temperature is a physical property of a system

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Why is the transition phase important?

Answers

Answer:

Explanation:

The transition phase allows for full and extensive muscular regeneration and mental recuperation. It can last from 2-4 weeks, but sometimes needs to be longer if the athlete is experiencing overtraining symptoms.

How many bonds will phosphorus form?

Answers

Answer:

In both the red and the black forms, each phosphorus atom forms three single bonds, which are spread apart sufficiently to be relatively strain free.

if 128 molecules of glucoses were covalently joined together, what would be the resulting molecule(s)? a) a polysaccharide b) a polypeptide c) 127 water molecules . d) both a and c e) both b and c

Answers

The answer is option D)Both A and C. If 128 molecules of glucose were covalently joined together, the resulting molecule is a polysaccharide and 127 water molecules.

Polysaccharides also referred to as poly-carbohydrates, are the most common form of carbohydrates in food. They are long-chain polymeric carbohydrates consisting of monosaccharide units joined together by glycosidic bonds. This carbohydrate can react with water to produce its constituent sugars using amylase enzymes as a catalyst. Examples of polysaccharides include starch, cellulose, and glycogen. In the food sector, polysaccharides are employed as stabilizers and dietary fibre. Making yoghurt is another process where bacteria create polysaccharides. Polysaccharides often have one of two functions: either they store energy or maintain structural integrity. Energy is stored in highly compact polymers like starch and glycogen. Two linear polymers, cellulose and chitin, offer structural support in both plants and animals.

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the inclusion of one or more d orbitals from the same principal energy level for hybridization is known as

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Sp3d hybridization involves the mixing of 1s orbital, 3p orbitals and 1d orbital to form 5 sp3d hybridized orbitals of equal energy. They have trigonal bipyramidal geometry. The mixture of s, p and d orbital forms trigonal bipyramidal symmetry.

What is hybridization?

Hybridization, in the context of genomics, is the process by which two complementary single-stranded DNA and/or RNA molecules combine to form a double-stranded molecule. Binding relies on proper base-pairing between the two single-stranded molecules.

Therefore, Sp3d hybridization involves the mixing of 1s orbital, 3p orbitals and 1d orbital to form 5 sp3d hybridized orbitals of equal energy. They have trigonal bipyramidal geometry. The mixture of s, p and d orbital forms trigonal bipyramidal symmetry.

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which gas has the fastest gas particles assuming they are at the same temperature nitrogen, oxygen or chlorine

Answers

NH3 has the least molar mass, it'll diffuse faster than the others.

What is Molar Mass?

We all wish to know how many molecules are there in a given material. Atoms and molecules are very small in both size and mass. One sample mole's weight is the molar mass. To get the molar mass, connect the atomic masses (atomic weights) of each atom in the molecule. Using the mass listed in the Periodic Table or Atomic Weight Table, determine the atomic mass for each element.

Typically, molar mass is stated in either grammes (g) or kilogrammes (kg) (kg).

The diffusion rate of a particular gas is inversely proportional to the square root of the molar mass of that gas.

As for molar masses go,

NH3= 17gm/mol

O2= 32 gm/mol

N2= 28gm/mol

CO2= 44gm/mol

NH3 has the least molar mass, it'll diffuse faster than the others.

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What are the effects of calcium chloride on the properties of concrete?

Answers

Answer:

Calcium chloride (CaCl2) has the ability to accelerate cement hydration and reduce set time by as much as two thirds. Research has shown that a 2% addition rate has an equivalent cure strength at 50°F as plain concrete at 70°F.

Explanatio n:

devise a synthesis of ch3ch2c≡cch2ch2oh using ch3ch2ch═ch2 as the starting material. you may use any other organic compounds or inorganic reagents. be sure to answer all parts.

Answers

The compound CH₃CH₂C≡CCH₂OH is synthesized from CH₃CH₂CH=CH₂ is formed by deprotonation reaction followed by a substitution reaction. The synthesis reaction takes place in the presence of NaH and 1-bromohexane.

In the first step of synthesis, acetylene reacts with sodium hydride to produce a strong nucleophile acetylide anion.

A bimolecular reaction is described as the chemical combination of two molecular entities in a reaction that can be considered either reversible or irreversible in nature. The biomolecular reaction can involve two chemically distinct molecules, e.g., A + B, or two identical molecules, e.g., A + A.

In the second step of synthesis, acetylide anion gives a substitution nucleophilic bimolecular reaction with 1-bromohexane to produce the required structure.

So a combination of deprotonation and substitution reaction yield the given compound CH₃CH₂C≡CCH₂OH.

All the steps included in synthesis are shown below in the image attached.

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The sugars produced by photosynthesis are stored and later may be consumed by an organism such as a deer, mouse, or human. The chemical energy in the stored sugars is an example of.

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The sugars produced by photosynthesis are stored. The chemical energy in the stored sugars is an example of chemical reactions.

One or more substances (the reactants) change into one or more new substances through a chemical reaction (the products). Chemical parts or chemical elements make up substances. In a chemical reaction, the atoms that make up the reactants are rearranged to produce various products. Chemical reactions are fundamental to life itself, as well as to technology and culture. The burning of fuels, the smelting of iron, the creation of glass and pottery, the brewing of beer and wine, and the production of cheese are a few examples of ancient processes that involved chemical reactions. The Earth's geology, atmosphere, oceans, and a variety of intricate processes that take place in all living systems are rife with chemical reactions.

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For the reaction 2 h2 + o2 --> 2 h2o how many grams of water are produced from 6. 00 moles of hydrogen h2?.

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For the reaction 2 h2 + o2 --> 2 h2o 12 moles of water are produced from 6. 00 moles of hydrogen h2.

Stoichiometry is a section of chemistry that basically involves using relationships between reactants and products in a chemical reaction to determine desired quantitative data. In Greek language, stoikhein means element and metron means measure, so stoichiometry literally translated means the measure of elements.

The stoichiometric coefficients attributed to each compound in the balanced chemical equation can be thought of as moles of reactants that are needed or moles of products formed in the reaction.

In our case, the balanced chemical equation for this synthesis reaction looks like as follows;

[tex]2H_{2}[/tex] (g) + [tex]O_{2}[/tex] → [tex]2H_{2}O[/tex]

to produce 2 moles of water  we need only 1 mole of oxygen.

This tells you that the reaction produces twice as many moles of water as you have moles of oxygen gas that take part in the reaction.

You know that your reaction uses 6.0 moles of oxygen. So, the moles of water produce is 12 mole Assuming that hydrogen gas is not a limiting reagent, you can say that the reaction will produce

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find the binding energy of carbon-12 per nucleon. the mass of a proton is 1.007276 u, of a neutron 1.008665 u, and of carbon 11.996706 u.

Answers

For C12 and C13, the binding energy per nucleon is 7.68 MeV and 7.47 MeV, respectively. The power needed to take a neutron out of C13 is

What is a carbon-12 nucleus' charge?

The total net charge of neutral carbon-12 (or any carbon atom) is zero because it contains 6 electrons with a total net charge of 6e- circling a nucleus with a total net charge of 6e+. The six protons and six neutrons that make up the nucleus each have an electric charge of e+.

For 6C12 nucleons, the binding energy per nucleon is 7.68MeV.

The satellite's total energy, also known as the binding energy of the satellite, is the product of its kinetic energy and potential energy.

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When the lobes of two p orbitals are in the same phase and overlap side-by-side, the orbital that is formed has a _____ dissociation energy compared to the σ∗ molecular orbital formed from the out-of-phase direct overlap of the two p orbitals.

Answers

When the lobes of two p orbitals are in the same phase and overlap side-by-side, the orbital that is formed has a π bond dissociation energy compared to the σ∗ molecular orbital formed from the out-of-phase direct overlap of the two p orbitals.

The atoms combine by colliding with each other. This situation basically refers to the process in which the two atoms comes so close to each other that they can penetrate each other’s orbital and form a new hybridized orbital where the bonding pair of electrons reside.  This hybridized orbital has usually lower energy than the atomic orbital and hence they are stable. It is in the minimum energy state. This partial penetration of the orbital is known as orbital overlap.

The molecular bond angles were explained through the directional properties of the bond. The molecule of hydrogen is formed by the overlap of 1s orbital in head-on collision. or we can say that he sigma bonds that are formed are basically because of the head on overlap.

When two atoms come in contact with each other to form a bond, their overlap can be positive, negative or even zero depending upon the phase and sign of the two interacting orbitals. Or we can also say that when two orbitals overlap with each other in sidewise or lateral manner the bond formed will be a pi-bond.

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what is the concentration of a solution formed by diluting 25.0 ml of a 3.2 m nacl solution to 135.0 ml?

Answers

The concentration of the solution created by diluting 25.0 ml of a 3.2 m nacl solution to 135.0 m is 0.59 M NaCl.

What exactly is the solution?

A homogenous combination of one or more solutes that have been dissolved in a solvent is known as a solution. The material that a solute dissolves in to create a homogenous mixture is known as a solvent.

What does a mixture's solution mean?

When two compounds are combined, they dissolve one another to form a solution. The term "solute" refers to the material that dissolves. Solvent is the name given to the material that does not dissolve. Salt water is a kind of solution.

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what is the activation energy (in kj) of a reaction whose rate constant increases by a factor of 100 upon increasing the temperature from 300 k to 360 k?

Answers

The activation energy of a reaction is ~ 69KJ/mol, at the given temperature.

What is Activation energy?

The smallest additional amount of energy that a reactive molecule needs in order to transform into a product is known as activation energy. The minimal amount of energy required to activate or energize molecules or atoms so that they can engage in a chemical reaction or transformation is another way to put it.

What is Temperature?

The concept of temperature is used to convey quantitatively how hot and cold something is. Using a thermometer, one can measure, temperature.

Calculations:

Given,

K2 = 100K1

T1 = 300

T2 = 360

Now,

We know that,

ln K2/K1 = Ea/R * {(1/T1) - (1/T2)}

ln 100K1/K1 = Ea/R * {(1/300) - (1/360)}

Ea= ln 100K1/K1 * R/{(1/300) - (1/360)}

Ea ~ 69KJ/mol.

Hence, the activation energy of a reaction is ~ 69KJ/mol, at the given temperature.

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in the lewis resonance structure for carbonate ion (co32-) in which the central c atom is singly bonded to each of the three o atoms, what is the formal charge on the central c atom?

Answers

The formal charge on the central C atom will be Zero(0).

In chemistry, a formal charge (F.C. or q), in the covalent view of chemical bonding, is the charge assigned to an atom in a molecule, assuming that electrons in all chemical bonds are shared equally between atoms, regardless of relative electronegativity.

The valence shell electrons in a molecule are depicted in a simplified manner by a Lewis Structure. It is used to demonstrate how the electrons in a molecule are positioned around particular atoms.

According to Formula of formula charge, V = Valence electrons, N= No. of lone electrons and B = Bonding electrons.

q = V-N-B/2

q = 4 - 1 - 6/2

q = 0

Therefore, formula charge on Central Carbon atom will be 0.

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A mystery element is found not to be a good conductor of heat and reacts similarly to sulfur when exposed to
a halogen. Which group on the periodic table is this unknown element most likely found?

Answers

There are various kind of elements that are present in periodic table. Some elements are harmful, some are radioactive, some are noble gases. Therefore, the element is oxygen.

What is periodic table?

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.

Periodic table help a scientist to know what are the different types of elements are present in periodic table so that they can discover the new elements that are not being discovered yet.

To match properties with sulfur, elements should be in the same group to which sulfur belongs to. Element which is a good conductor of heat and reacts similarly to sulfur when exposed to a halogen is oxygen.

Therefore, the element is oxygen.

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100 POINTS WILL MARK BRAINLIEST PICTURE BELOW

Answers

Answer:

D

Explanation:

it seems the most logical

Answer:

B

Explanation:

6.00 ml

PLEASE MARK AS BRAINLIEST

A flexible container contain 37. 4 gram of oxygen ga at a preure of 890. 0 mmHg and a temperature of 55. 00 oC. What i the volume of the ga in the container in L?

Answers

After solving the equation the volume of the gas in the container is 26.6L.

What is ideal gas law?

Pressure times volume are equal to moles times the universal gas constant times temperature, according to the ideal gas law formula.

PV=nRT

where P is for pressure

n = number of moles, where V = volume

T stands for temperature.

R is the gas constant

Energy units per temperature increase per mole are measured by the gas constant R. It is sometimes referred to as the molar gas constant, the ideal gas constant, and the universal gas constant.

Depending on the units you use in your computation, the gas constant R has a different value.

To convert degree celcious to kelvin, 55degree C+273= 328K

To convert pressure from mmHg to atm= 890/760=1.17atm

Number of moles of oxygen= 37.04/32=1.16mol

V= nRT/P

 =1.16*0.0821*328/1.17

 =26.6L

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What is a transitioning process?

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A transition process is the when the substances changes from the one states to the other states.

The phase transition is the process when substances changers its states. the substance changes between the three states  in six ways are :

1) melting : when the substances changes from the solid states to the liquid states.

2) freezing : in this  transition the liquid phase changes to the solid phase.

3) evaporating : In this phase transition the liquids changes to the vapor phase.

4) condensing : This phase transition occurs when the gas changes to the liquid.

5) sublimation : the process of changing the solid phase into the liquid phase.

6) deposition : in this transition the gas phase changes to the solid phase.

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What are the 3 most common types of hazardous materials found in construction work?

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Silica dust, wood dust, and lower toxicity dust are the three most common types of hazardous materials found in construction work

While the majority of dust can cause lung ailments when inhaled over extended periods of time, some are toxic even when just a tiny amount is inhaled. Silica dust, wood dust, and lower toxicity dust are the three main forms of dust encountered on building sites. A buildup of silica dust particles in the lung tissue results in inflammation and scarring. Additionally, the particles make it harder for the lungs to absorb oxygen. Silicosis is the name of this illness. Silicosis is a chronic, disabling, and sometimes deadly condition that causes lifelong lung damage.

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How do you calculate gas density?

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The gas density is determined by dividing its mass by volume. The mass of the gas occupying a specific volume at a given pressure and temperature is referred to as the gas density.

Given the other two measurements, the density formula can be changed to compute mass or volume. d = M/V, where density is d, mass is M, and volume is V, is the formula for density. Grams per cubic centimeter is a common unit of measurement of density. The ideal gas law (PV = nRT) and the density formula are typically combined to determine the density of a gas. The Greek letter ρ stands for density. From the formula above, V=nRT/P and n=m/M, which indicates density density = MP/RT where P = pressure. M= mass Temperature is T and R = rate

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What are the three basic transition effects?

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The three basic phase transition effects are : melting , freezing and evaporation .

The three basic phase transition effects are :

1) melting : the change in the solid state to the liquid state is called as the melting. the example of the melting is the when ice change to water.

2) freezing : This phase transition occurs when the liquid phase changes in to the solid phase . the example of freezing is the when water changes to the ice form.

3) evaporation : This phase transition occurs when the change in liquid states to gas states takes place.

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Please help me answer this | QUICKLY PLS

A.Fossil fuel use will decrease as populations work to decrease emissions of greenhouse gases.
B.Coal use will show the greatest decrease due to the increased use of renewables for electricity production.

C.Even though hydropower use will decrease, the use of renewables as a whole will increase.

D.All of the above.

Answers

Fossil fuel use will decrease as populations work to decrease emissions of greenhouse gases. Coal use will show the greatest decrease due to the increased use of renewables for electricity production. Even though hydropower use will decrease, the use of renewables as a whole will increase.

What is fossil fuel ?

An extracted and burned fossil fuel is a hydrocarbon-containing substance that naturally originated in the Earth's crust from the remains of extinct plants and animals. Coal, oil, and natural gas are the three primary fossil fuels.

When burned, fossil fuels release a lot of carbon dioxide. Climate change is caused by carbon emissions, which trap heat in the atmosphere. About three-quarters of the carbon emissions in the United States are caused by the burning of fossil fuels, primarily for the power and transportation sectors.

Thus, option D is correct.

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how does the current concentration of carbon dioxide in the atmosphere compare to concentrations in the past 800,000 years (from ice core data)?

Answers

The current concentration of carbon dioxide in the atmosphere is higher than at any point in the last 800,000 years.

An electric current is a circulation of charged particles, including electrons or ions, shifting thru an electrical conductor or space. Its miles are measured because of the net fee of drift of electric fee through a floor or into a managed extent.

The current is one of the most important and essential elements within electric and electronic technology. The contemporary flowing in a circuit may be utilized in an expansion of ways from generating warmness to inflicting circuits to replace, or information to be saved in an included circuit.

Current is decided by the number of electrons passing through a cross-section of a conductor.

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_____preservatives commonly used to slow the development of off-flavors, odors, and color changes caused by oxidation.

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In order to prevent or delay the onset of rancidity brought on by oxidation, antioxidants are frequently utilized as preservatives in foods that contain fat. Ascorbic acid (vitamin C) and tocopherols are examples of natural antioxidants (vitamin E).

Which of the following is a typical preservative used to prevent the emergence of off flavors, smells, and color changes?

Additionally, nitrite helps cured meat take on flavor and color while delaying the onset of rancidity, off flavors, and off odors during storage. The characteristic pink hue of cured meats is brought on by nitrite.

In this quiz, you'll learn how to define the process of a material mixing with oxygen?

a chemical reaction in which an object combines with oxygen; electrons are lost in oxidation processes.

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in nature the alkali metals are found only in compounds because theyselect one:a.are very reactive elements.b.each have a stable octet.c.are rare elements.d.have small atoms.

Answers

Alkali metals are highly reactive because they only have one valance electron

Therefore A is the correct answer

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a stock solution of 1.00 m nacl is available. how many milliliters are needed to make 100.0 ml of 0.750 m

Answers

75 milliliters of stock solution are needed to make 100.0 mL of 0.750 M.

What is the stock solution?

To make a stock solution, weigh out the proper amount of a pure solid or measure out the proper amount of a pure liquid, put it in the right flask, and then dilute it to the desired volume.

NaCl stock solution is, S1 = 1.00 M.

NaCl is, S2 = 0.750 M.

NaCl is, V2 = 100 mL.

Consider, the required volume of NaCl stock solution to make the desired solution is, V1

According to the dilution law,

S1V1 = S2V2

Where, S1 = Initial strength, V1 = Initial volume, S2 = Final strength and V2 = Final volume.

So, 1.00 M *V1 = 0.750 M * 100 mL

V1 = ( 0.750 M * 100 mL) / 1.00 M = 75 mL

Therefore, 75 milliliters of stock solution are needed to make 100.0 mL of 0.750 M.

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a gas cylinder contains 1.0 mole of helium at a temperature of 20 degrees celsius. a second cylinder contains 1.0 mole of neon at 20 degrees celsius. the helium atoms are moving with a higher average speed, but the gas pressure in the two containers is the same. explain how this is possible.

Answers

Summarizing this information we see that the helium atoms collide with the partitions 5√ time greater often, however every collision is 5√ instances weaker.

Consequently, the pressures exerted via way of means of the 2 exclusive gases are the same. Volume. Pressure is likewise suffering from the quantity of the field.

If the quantity of a field is decreased, the fueloline molecules have much less area wherein to transport around. As a result, they'll strike the partitions of the field greater often, and the stress increase.

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What is her monthly cost? after spending 15 minutes talking with a client, the client leaves the interaction feeling defensive. this is evidence that the communication can be described as what? What does it mean if a good is inelastic in economics? Find the value of sin U rounded to the nearest hundredth, if necessary.2624W10 what would happen to the cell if a mutation occurred in the gene coding for patched causing patched to lose the ability to bind to shh g which one of the following statements is true? group of answer choices hormones of the same chemical class usually have the same function. hormones are secreted by specialized cells usually located in exocrine glands. hormones often regulate homeostasis through antagonistic functions. hormone pathways involved in homeostasis typically exhibit positive feedback. Mao Zedonginformation on type of authoritarian government Circumstances that brought them/him to power Techniques used by the authoritarian government to gain and maintain powerAnd Is the authoritarian government still in power? If so, what are current conditions like within the country? If not, what led to the destruction of their dictatorship? How has the nation faired since then A 61. 7 kg carpenter at a construction site plans to swing in a circular arc from one roof top to an adjacent roof at the end of a 11. 5 meter rope suspended from a crane boom. If her wiry arms, toughened by years of driving spikes with a no. 22 framing hammer, are capable of exerting 1229 n of force on the rope, what is the maximum speed that she can tolerate at the low point of her swing? 4. Identify Which organelle contains DNA in many types of cells? .Tech A says that unitized hubs have a wheel nut with a higher installation torque thanserviceable wheel bearings. Tech B says that unitized hubs have the proper bearing endplay designed into the assembly once they are torqued properly. Who is correct?a. Tech Ab.Tech B C Both a and b D Neither a and d Name the organelles that store neurotransmitter molecules within the distal end of a motor neuron axon. What type of settlement is generally used when getting a big influx of money (lottery, inheritance, etc...)? some technical analysts use fibonacci numbers to predict: market turnarounds. primary trend breakthroughs. resistance and support levels. secondary market trend lines. relative performance values. how does the rate of decay of a long-half-life material normally compare to the rate of decay of a short-half-life material? why did karl rove encourage activists to place antigay initiatives on the ballot in some states during the 2004 election season? states that as successive units of a variable resource are added to a fixed resource, beyond some point, the marginal product will decline What is the equation of a line that passes through 1 2 and is perpendicular to the given line? A 67-year-old woman presents with difficulty breathing and chest discomfort that awakened her from her sleep She states that she has congestive heart failure, has had two previous heart attacks, and has prescribed nitroglycerin She is conscious and alert with adequate breathing Her blood pressure is 96/64 mm Hg and her heart rate is 120 breaths/min Treatment for this patient includes when multiplied it equals -32 but when added it equals -4 a christmas carol,cause and effect essay (please help mee its due friday and i need it done soon as possible))