Someone who looks after all of the different area managers in a large corporation such as in HR, Business Information, and Operations is called a:

elementary reactions describe a process that occurs by a single collision (molecular event). if the first step in a reaction mechanism is slow, the rate law for the overall reaction will be the same as the rate law for that elementary step. the reaction mechanism must be consistent with all experimentally-derived observations, including the experimentally-derived rate law. a reaction mechanism is a proposed sequence of elementary steps. the combination of all elementary steps in a reaction mechanism must result in the overall reaction. when the rate law for an overall reaction does not correspond to the known rate-determining (slow) step, it usually means one or more fast steps precede it in the reaction mechanism.

All the above statements are true regarding elementary reactions.

If we are aware of a reaction's elementary nature, we are also aware of its rate law. The chemical equations for the elementary reactions in a multistep mechanism do not always have to add up to provide the chemical equation of the overall process because intermediate compounds can be created.

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Answer

Procedure

Considering the following chemical equation, which is already balanced

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

We assume there is enough oxygen to react with all propane and thus, propane is the limiting reactant

Therefore we use the equation to determine the amount of propane

189.68g CO₂ /

doAnswer:

Explanation:

i  don¨t lf it rigtht but i thnk it C3h8 an a thank u

Answer:

Yes, A  toothpick can be a good model for showing the strength and brittleness of salt as It will break and splinter just like salt.

What are the properties of  salt ?

Salts are ionic in nature due to the presence of ions.

They are brittle, hard and crystalline solids.

Salt is white, odorless and it has a salty taste.

Toothpick will break and splinter just like salt, exclamation, because it breaks easy and if we use a hammer on a tooth pick its gonna break and splinter just like salt.

Therefore , A  toothpick can be a good model for showing the strength and brittleness of salt as It will break and splinter just like salt.

Explanation: hope this helps

For a series of weak acids, the increase in pKa means that the conjugate bases become more stable.

The term pKa refers to the negative logarithm of the acid dissociation constant. This is a constant that shows the extent to which an acid is dissociated in solution.

As the pKa of a series of  weak acids increases, the conjugate bases become more stable.

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Answer:

Explanation:

The answer is D:

It releases energy when reacts with water

The charge on the Lewis acid is +3 which means option d is the correct choice.

A Lewis Structure is a completely simplified illustration of the valence shell electrons in a molecule. It is used to expose how the electrons are organized round character atoms in a molecule. Electrons are proven as "dots" or for bonding electrons as a line among the 2 atoms.

As we know in a coordination compound metal atoms or ions are Lewis acid . So, here Cobalt is Lewis acid .

Now , the charge of ethylenediamine (en) is 0 , the charge of Cl is -1 . Let the charge on Co be X . Then as overall compound is neutral . So,

1 × X + 2 × 0 + 3 × -1 = 0

X - 3 = 0

X = +3

So, the charge on Lewis acid (Co) is +3 . So, correct answer is d). +3

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Answer:

im assuming you need the balanced equation

Explanation:

Zn + MgCl2 = ZnCl2 + Mg

Answer:

it will mgcl2 + zn

Explanation:

Mg will replace zn from its salt solution

to form mgcl2

hope it helps

Ammonium chloride, carbon dioxide, and water are produced when ammonium carbonate and hydrogen chloride react. So the gas delivered is carbon dioxide.

Ammonium Carbonate is a crystalline (sand-like) powder that is colorless or white and has a strong odor of ammonia. Baking powders, mordant dyeing, tanning, medication, a reagent, and smelling salts all make use of it. Substance Rundown since it is referred to by Speck and EPA.

Hydrochloric corrosive has many purposes. Electroplating, the photographic, textile, and rubber industries all make use of it, as do the production of dyes, fertilizers, and chlorides. Eyes, skin, and mucous membranes are corroded by hydrochloric acid.

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While picking up a buret, an unknown solution left by a previous solution drips onto your hand - Gloves

While pulling an empty beaker off the shelf at the beginning of lab, it slips out of your hand onto the floor - Closed-toe shoes

While checking on a stirring solution, the solution splashes up towards your face - Goggles

While transferring a solution from a flask to a beaker, the solution accidentally spills down the front of the lab bench - Lab coat

Explanation:

So, according to the question. the matches will be:

While picking up a buret, an unknown solution left by a previous solution drips onto your hand - Gloves

While pulling an empty beaker off the shelf at the beginning of lab, it slips out of your hand onto the floor - Closed-toe shoes

While checking on a stirring solution, the solution splashes up towards your face - Goggles

While transferring a solution from a flask to a beaker, the solution accidentally spills down the front of the lab bench - Lab coat

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Answer:

See explanation

Explanation:

The formation of isomers is common to octahedral complexes. Isomers are different compounds with the same molecular formula but different structural formulas. Isomers have different atom to atom connections. Werner's complexes can display; polymerization, ionization, linkage, geometric and optical isomerism among others.

Isomers of coordination compounds are not easily recognizable and not easily separable in the laboratory.

The geometric, linkage and ionization isomers of the complex given in the question are shown below.

The generic Lewis structure of a molecule formed between atoms of group 1 and group 16 elements is shown in the image attached.

A Lewis structure is a representation of a molecule that contains the symbol of the elements that could be found in the molecule along side the number of electrons in the valence shell of each atom shown as dots.

The dots could show the electrons that are shared as in a covalent bond, electrons that are transferred as in an ionic bond, or even a nonbonding pair of electrons.

We are now going to use sodium oxide to demonstrate the generic Lewis structure of a molecule formed between atoms of group 1 and group 16 elements is shown in the image attached.

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Explanation:

By ordinary chemical means/reaction

The mass of oxygen gas produced, given that 15.8 g of potassium permanganate is heated until no more oxygen gas is given off is 1.6 g

From the question given, the following data were obtained:

The mass of oxygen gas produced from the reaction can be obtained as follow:

Mass of potassium permanganate = Mass of remaining substance + mass of oxygen

Inputting the given parameters, we have:

15.8 = 14.2 + mass of oxygen

Collect like terms,

Mass of oxygen = 15.8 - 14.2

= 1.6 g

Thus, we can conclude that the mass of oxygen gas produced from the reaction is 1.6 g

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After 10 days, there will be approximately 15,625 radioactive atoms left.

What is radioactive?
The process through which an unstable nucleus loses energy through radiation is known as radioactive decay, also recognised as nuclear decay, radioactive contamination, radioactive disintegration, as well as nuclear disintegration. A substance that has unstable nuclei is regarded as radioactive. Alpha decay, beta decay, and gamma decay are three of the most frequent types of decay, and they all involve the emission of one or even more particles. Beta decay is a result of the weak force, while the nuclear force and electromagnetism are in charge of the other two mechanisms. Electron capture, which occurs when an unstable nucleus seizes an inner electron in one of the electron shells, is the fourth common type of decay.

This is because the half life of the nuclide is 2 days, meaning that after 2 days, half of the 100,000 atoms will have decayed and only 50,000 atoms will remain. After 10 days, the number will have halved 6 times, leaving 15,625 atoms (50,000/2^6).

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Answer:

false tjytyjiy

Explanation:

cnruujrkyrryyrkkurk

When warm air contains all the water vapor it can hold and then cools down, the process by which the vapor turns into liquid water or ice is called condensation.

Condensation occurs when the air temperature drops below the dew point, which is the temperature at which the air becomes saturated with water vapor. During the process of condensation, water molecules in the air begin to slow down and lose energy, causing them to come together and form clusters. As these clusters grow in size, they eventually become visible as liquid water droplets or ice crystals.

Condensation plays an important role in the water cycle, as it is the process by which water vapor in the atmosphere is transformed into precipitation, such as rain, snow, and sleet. In addition, condensation is responsible for the formation of fog and dew, which occur when water vapor condenses directly onto surfaces such as grass, leaves, and windows.

Overall, condensation is a natural and essential process that helps to regulate the amount of moisture in the air and provides us with the water we need for our daily lives.

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Answer: It is a basic solution with pH =8.51

Explanation:

We were given that hydroxide ion concentration [OH-] as 3.26 x 10-6 M

But We know thar

[OH-] [H+] = 1 × 10^-14

To get the Hydrogen ion [H+] concentration, we have that

[H+] = 1 × 10^-14 M/[OH-]

= 1 × 10^-14 M/3.26 x 10-6 M

    =  3.067 x 10^-9 M

But, pH = - log [H+]

Therefore,

pH = - log (3.067 x 10^-9)

pH=8.51

when  pH > 7, The solution is basic, therefore a solution with pH =8.51 is basic.

The value of k for this aqueous reaction at 298 k a b↽−−⇀c  dδ°=10. 35 KJ/mol is 30.37 mol.

K is the song which is used to donate the equilibrium of a reaction and the equilibrium of the reaction can only be obtained when the concentration of reactant is equal to the concentration of the product.

K is also known as the equilibrium constant.

δG or dδ° = - R T In K

                     R = universal gas constant

                     T = 298 k or 24.4Celciuss

                      dδ°= 10. 35

substituting the value in the equation

10. 35 = - 8.313 ×  24.4 celcius  In k

 In k =  - 8.313 ×  24.4 celcius / 10. 35

 In k = 30.37 mol.

Therefore, the value of k for this aqueous reaction at 298 k a b↽−−⇀c  dδ°=10. 35 KJ/mol is 30.37 mol.

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Answer:

\(P_N=0.987atm\)

Explanation:

Hello there!

In this case, for these problems about collecting a gas over water, we must keep in mind that once the gas has been collected, the total pressure of the system is given by the atmospheric pressure, in this case 1.01 atm. Next, since we also have water in the mixture, we can write the following equation:

\(P_T=P_w+P_N\)

Thus, by solving for the pressure of nitrogen and using consistent units, we obtain:

\(1.01atm=17.5torr*\frac{1atm}{760torr} +P_N\\\\P_N=1.01atm-0.023atm\\\\P_N=0.987atm\)

Answer:

one-half

Explanation:

cuz for a first order reaction is a half life independent of concentration and constant over time

Answer:

They may have different phenotypes because of differences in their environments, such as nutrition and healthcare. Why might genetically identical twins have different phenotypes?  Any genes on the same chromosome could be linked genes, whereas only genes on sex chromosomes can be sex-linked genes.

Explanation:

Due to the effects of the environment, genetically identical twins might have different phenotype.

The qualities or visible characteristics of an organism are its phenotype. It depends on how the environment and the genotype, or genetic code, of the organism interact.

Although human monozygotic twins as well as other genetically identical species may share startling physical similarities, they frequently differ in key characteristics, such as complicated diseases. The effects of the environment have generally been blamed for this variance across organisms with essentially identical chromosomal DNA sequences.

Therefore, due to the effects of the environment, genetically identical twins might have different phenotype.

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Answer:

B. Oxygen

Explanation:

Basically count each arrow since each arrow represents an electron. Then use the periodic table to find the element with 8 electrons, which is oxygen. Also, if you know the orbital patterns, you can identify that the 2p orbital represents an element in Group 16.

Answer:

The answer should be A. the mechanism will provide defense against many different types of pathogens :)

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As octane is burned in a calorimeter, the amount of energy released by the system is 10,533.6 J.

A calorimeter refers to a device used in the process of measuring the heat of chemical reactions or physical changes and heat capacity. It measures the volume and heat released during a certain time interval. The heat energy q which is absorbed or released from a reaction can be determined using total mass m, specific heat capacity c and temperature change ΔT which is given by:

q = mcΔT.

According to the provided information,

The total mass, m = 10g + 200g = 210g

The specific heat capacity of water, c = 4.18 J/°C g

The change in temperature, ΔT = 37 – 25 = 12°

Hence, the heat energy released is:

q = 210 × 12 × 4.18 = 10, 533.6 J

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The number of bonds for an atom can change depending on the chemical reaction it undergoes.

Atoms can form chemical bonds with other atoms to achieve a more stable state. The number of bonds an atom can form is determined by the number of valence electrons it has. Valence electrons are the outermost electrons that are involved in bonding. When an atom undergoes a chemical reaction, it can either gain or lose electrons, or share electrons with other atoms to form new bonds. As a result, the number of bonds for that atom can change.

For example, when a hydrogen atom (H) and a chlorine atom (Cl) react, they form a hydrogen chloride (HCl) molecule. In this reaction, the hydrogen atom shares one of its electrons with the chlorine atom, forming a covalent bond. As a result, the hydrogen atom goes from having one bond to two bonds, while the chlorine atom goes from having one bond to three bonds.

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The complete balanced chemical reaction can be written from the half reaction in acidic solution is,

           NO3- + 4H+ + 3e ----> NO + 2H2O.

The half reaction is the part of reaction which represents either an oxidation or a reduction. There are two half-reactions. one is oxidation and other is reduction. Both are necessary to completely describe a redox reaction.

NO3- ----> NO.

This reaction is not balanced and not completed.

NO3- + 4H+ + 3e----> NO + 2H2O.

This is a balanced chemical reaction. A balanced equation contains the same number of each type of atoms on both the left and right sides of the reaction arrow. To write a balanced equation, the reactants go on the left side of the arrow, while the products go on the right side of the arrow.

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Answer: A.) unsaturated

Explanation:

According to the question the final temperature of the mixture is 305.7 K.

Energy is the ability to do work. It is present in many forms, such as heat, light, sound, electricity, and chemical energy. Energy can be transferred from one form to another, or it can be converted from one form to another. Energy can be used to power machines, heat homes, light up cities, and create new materials.

Before mixing:

Heat energy = mass x specific heat capacity x change in temperature

Heat energy before mixing = (27.0 g)(4.184 J/g⋅°C)(285 K - 273 K) + (47.0 g)(4.184 J/g⋅°C)(320 K - 273 K)

Heat energy before mixing = 1040 J + 7012 J = 8052 J

After mixing:

Heat energy = mass x specific heat capacity x change in temperature

Heat energy after mixing = (74.0 g)(4.184 J/g⋅°C)(T - 273 K)

Heat energy after mixing = 8052 J

Therefore,

(74.0 g)(4.184 J/g⋅°C)(T - 273 K) = 8052 J

T = (8052 J / (74.0 g)(4.184 J/g⋅°C)) + 273 K

T = 305.7 K

Therefore, the final temperature of the mixture is 305.7 K.

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Answer:

273 K, 101.3 kPa

Explanation: I just did the quiz

To acquires STP condition, Jim must apply a temperature 298 K and 1 atm pressure. At STP condition one mole of all gases occupies a volume of 22.4 liters.

The standard temperature and pressure is called STP condition. A temperature  of 298 K and pressure of 1 atm is called standard temperature and pressure.

At STP condition, the volume of one mole of any substance is 22.4 liters. One mole corresponds to 6.02 × 10²³ molecules. By satisfying the STP condition, we can determine the volume, and other mole parameters of a compound.

Experiments can be conducted at STP condition by applying a temperature of 298 K which is equal to 25°C and a pressure of  1 atm. He can use a thermometer and barometer to measure and set the values of temperature and pressure.

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Aminoimidazole ribonucleotide (AIR) is synthesized through a multi-step pathway involving ten enzymatic steps after N5, N10-methylene-tetrahydrofolate is created. AIR is then converted to purine nucleotides like AMP (adenosine monophosphate) and GMP (guanosine monophosphate) via inosinic acid. (The correct answer is B)

The amino acid that is directly involved in the purine biosynthetic pathway is Glycine (Gly).What is the purine biosynthetic pathway?Purines are nitrogen-containing ring structures that are the building blocks of DNA and RNA. Adenine and guanine are two of the four DNA nucleotides that are essential for gene synthesis. The purine biosynthetic pathway is a metabolic pathway that is responsible for producing purines from simpler molecules. It's a pathway that is required for purine nucleotide synthesis in both eukaryotes and prokaryotes. The pathway generates phosphoribosylamine, which is the precursor for inosinic acid, which is the primary purine nucleotide. The synthesis of purines begins with the formation of PRPP (5-phosphoribosyl-1-pyrophosphate), which is catalyzed by PRPP synthetase. The first step in the purine biosynthetic pathway is the formation of PRPP, followed by ten enzymatic reactions, all of which are required for the synthesis of the purine ring.In the purine biosynthetic pathway, Glycine (Gly) is directly involved. It is required as a precursor for the formation of the purine ring system. Glycine is transformed to N5,N10-methylene-tetrahydrofolate in a reaction catalyzed by the enzyme glycine decarboxylase in the presence of tetrahydrofolate. Aminoimidazole ribonucleotide (AIR) is synthesized through a multi-step pathway involving ten enzymatic steps after N5,N10-methylene-tetrahydrofolate is created. AIR is then converted to purine nucleotides like AMP (adenosine monophosphate) and GMP (guanosine monophosphate) via inosinic acid.

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