2NO + O2 --> 2NO2

what would be the reaction rate if at one point in the reaction the rate of N02 formation is 2x10-2M/s?

Answer:

Relationship: The Pressure on an Area and the Force Acting Perpendicularly to the Area. The pressure, , on an area, , is given by = , where is the force acting perpendicularly to all the sides of the area

A. The forces are working in the same direction.

B. The forces are additive.

C. The combined force on the box is 250 Newtons.

D. The forces are unbalanced.

The net force on an object is the resultant force on the object when all the possible forces have been considered.

Forces that act in the same direction are additive in nature while opposing forces are subtractive.

Thus, considering the forces exerted by Adam and Bob on the box, their forces are additive because both are in the same direction. Thus, the total force applied or the combined force on the box can be calculated as;

100 + 150 = 250 Newtons.

Now, the two forces are not applied at the same point on the box and neither are they equal in magnitudes. Bob exerted more force than Adam. Thus, the forces are unbalanced.

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The fact that the coal burned in South African power plants has a high Sulphur content means that the power plants: burn cleanly, with little pollution

The fact that the coal burned in South African power plants has a high Sulphur content means that the power plants: burn cleanly, with little pollution; emit high levels of radioactive pollution; are very expensive, causing the majority of the country's poor to go without electricity; contribute to acidic deposition; and are very affordable, enhancing the country's economy.

What is released during the burning of sulfur-rich coal?

Some or all of the SO2 produced when high Sulphur coal is burned in power plants is frequently discharged into the atmosphere, where it reacts with water vapour to form sulfuric acid. Acid rain is then produced when this acid reacts with water droplets.

When coal is burned, what is released in significant amounts?

All living things, including humans, are composed of carbon. However, as coal burns, its carbon reacts with airborne oxygen to generate carbon dioxide. Although carbon dioxide (CO2) is an odourless, colourless gas, it is one of numerous gases in the atmosphere that can retain the heat from the planet.

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Answer:

A fire could cause an increase in evaporation of water from surface water near the fire.

Explanation:

Answer:

Explanation:

Wildfires can compromise water quality both during active burning and for months and years after the fire has been extinguished. Burned watersheds are prone to increased flooding and erosion, which can negatively affect water-supply reservoirs, water quality, and drinking-water treatment processes.

Wildfires can have immediate and long term effects on rivers, lakes, and streams. After burning vegetation, the ground's soil becomes hydrophobic and is unable to absorb any water. This creates what is known as stormwater runoff. Stormwater runoff is rainflow that travels over the surface of the ground.

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When 3.45 L of a 0.35 M H₃PO₄  to be diluted to a volume of 10.00 L, The concentration of H₃PO₄ resulted is 0.1207 M

The concentration of H₃PO₄  can be calculated as follows:

Dilution is the process of reducing the concentration of a solute in solution, usually by simply mixing the solute with more solvent by adding water to the solution.

The formula (M1V1=M2V2) represents the dilution formula in chemistry.

M1V1=M2V2

3.45 L x 0.35 M = M2 X 10.00 L

M2 =  3.45 L x 0.35 M

                10.00 L

M2 = 0.1207 M

Therefore, when 3.45 L of a 0.35 M H₃PO₄  to be diluted to a volume of 10.00 L, The concentration of H₃PO₄ resulted is 0.1207 M

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Answer: Yes, it is true, hydrogen bonding is strongest intermolecular forces compare with all. In case of nh3, (N-H bonds makes between molecules) and dipole dipole interaction (interaction between two dipole) and london dispersion forces occur between nh3 molecules. this types of intermolecular forces are generated between nh3 molecules.

The wavelength is 241.77m.

What is frequency?

Hertz gives the frequency at which a recurring event occurs once every second (Hz). The number of vibrations or cycles per unit of time is the definition of frequency, as we are all aware.

What is wavelength?

A wave's wavelength is the separation between its successive crests, notably between the points of an electromagnetic wave.

frequency = 1.240*10^6 s^-1

speed of light = 2.998*10^-8 m/s

λ = wavelength

C= λv

λ=c/v

λ= 2.998*10^-8 m/s/1.240*10^6 s^-1

λ= 241.77m

Therefore, wavelength is 241.77m.

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Answer:

It is attached below.

Explanation:

The Lewis structure for H₃NO, also known as ammonia oxide or nitroxyl is given in the image.

Count the total number of valence electrons:

Hydrogen (H) has 1 valence electron.

Nitrogen (N) has 5 valence electrons.

Oxygen (O) has 6 valence electrons.

Total valence electrons = (3 × 1) + 5 + 6 = 14

Determine the central atom:

In this case, nitrogen (N) is the central atom, as it is less electronegative than oxygen (O) and hydrogen (H).

Connect the atoms with single bonds:

Place a single bond (represented by a line) between nitrogen (N) and each hydrogen (H). This accounts for 3 electrons.

Distribute the remaining electrons:

Place the remaining 11 electrons as lone pairs around the atoms to satisfy the octet rule. In this case, nitrogen (N) will have a lone pair, and oxygen (O) will have a lone pair.
Each line represents a single bond, and the lone pairs are represented by pairs of dots or dashes. The hydrogen atoms are bonded to the nitrogen atom, and the oxygen atom has a lone pair.

Hence, the Lewis structure is in the image.

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Equations 1 & 2, Equations 2&3, and Equations 1&3 illustrate a favorable energetic coupling in a cell.

What is the non-spontaneous reaction?
A nonspontaneous reaction is one that under the specified conditions, does not favour the formation of products. A reaction needs to be endothermic, accompanied by the a drop in entropy, or both to qualify as nonspontaneous. The majority of the gases that make up our atmosphere are a combination of nitrogen and oxygen.

If G is positive, the reaction is not spontaneous and will need external energy. The reaction seems to be spontaneous and will happen on its own if G is negative.

Coupling of reactions-
Equations 1 and 2-
∆G1=-7kcal/mol, ∆G2=-14.8kcal/mol
∆G total= -21.8kcal/mol( favourable reaction)
Equation 2&3-
∆G2=-14.8kcal/mol, ∆G3=+3.3kcal/mol
∆G total=-11.5kcal/mol(favourable)
Equations 3 and 4-
∆G3=+3.3kcal/mol, ∆G4= +7kcal/mol
∆G total=+10.3kcal/mol(unfavorable)
Equations 1 and 4-
∆G1=-7kcal/mol, ∆G4=+7kcal/mol
∆G total= 0(reaction will be in equilibrium)
Equations 1 and 3-
∆G total=(-7+3.3)kcal/mol
=-4.3 kcal/mol(favorable)

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The 5.76 grams of MgBr₂ produced from the reaction of bromine and magnesium.

Balanced chemical equation

Mg + Br₂ ⇒MgBr₂

Number of moles of Mg and Br₂ present

n(Mg) = 1/24.3 = 0.0412 mol

n(Br₂) = 5/159.8 = 0.0313 mol

Checking the limiting reagent in the reaction.

Magnesium and Bromine react in 1:1 ratio

Then Limiting reagent will be bromine. The values of bromine will be used to calculate amount of magnesium bromide(Molar mass =5.76g).

0.0313 x 184.1 = 5.76 grams.

Hence, 0.0313 mole of bromine will produce 5.76 grams of magnesium bromide.

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Pyruvate is produced by the reaction of a glycolysis. The multienzyme complex catalyzes the oxidative of pyruvate to yield carbon dioxide and acetyl coa. Its reaction is given as

Pyruvate+CoA+NAD⁺→acetyl CoA+NADH+H⁺+CO₂

Acetyl CoA→Citric acid cycle

Glycolysis process is defined as the conversion of a glucose(C₆H₁₂O₆) into the pyruvate(CH₃COCO₂H). In the glycolysis reaction, high energy ATP molecules and reduced nicotinamide adenine dinucleotide is created. The series of ten enzyme-catalyzed process makes up glycolysis.

One of the metabolic route which does not require is glycolysis(In anaerobic conditon, pyruvate is converted to lactic acid). It is occurred in various species, which tells us that it is old metabolic route.

Therefore, the glycolysis reaction produces pyruvate and its complete reaction is

Pyruvate+CoA+NAD⁺→acetyl CoA+NADH+H⁺+CO₂

Acetyl CoA→Citric acid cycle

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The total time of decay is 8.18 min.

The half life is the time to takes a substance to decay. so, we half to find out the number of half lives that have passed for initial amount of 132.8 g.

         number of half -lives        amount of substances in g

                       0                                    132.8

                        1                                     66.4

                        2                                     33.2

                        3                                      16.6

                        4                                        8.3

so. it will take 4 half -lives for the substance to decay to 8.3 g.

the total time decay = 4 × 2.045 = 8.18 min.

Thus, A substance has a half-life of 2. 045 minutes. If the initial amount of the substance was 132. 8 grams, half - life will have passed before the substance decays to 8. 3 grams. the total time of decay is 8.18 min.

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The processes that come into play during the dehydration process in an oven is option  A. Heat, low humidity and air current.

What are the methods of dehydration?

Foods can be dried in a number of ways, including the sun, an electric dehydrator, a regular oven, a microwave (just for herbs), air drying, and solar drying.

Note that Food dehydration involves simultaneous mass and heat transfers within the food as well as changes in the energy transfer medium. When food is dehydrated using a process other than hot air, the moisture may need to be removed from the food by means of air or another gas.

Hence, One of the simplest methods for preserving food is dehydration. You don't need to purchase specialized jars, preservers, or equipment. Not even a dehydrator is necessary. Food can be dried in your oven, whether it's a toaster oven or a regular oven.

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Reactivity decreases as you move from left to right. The farther to the left and down the periodic chart you move, easier it is for electrons to be given or taken away, hence resulting in higher reactivity.

Reactivity decreases as we move down the column. As you learn more about the table, you will be able to find that this pattern is true for other families.

The atoms get bigger, as the atomic number increases. The chemical properties change slightly when compared to the element right above them on the table. The non-metal elements in Group 7 that are known as the halogens, get less reactive as you move to the down of the group.

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The Lewis structure of the compound is shown in the image attached to this answer.

We know that the Lewis structure shows us what a compound looks like. The two parts of the Lewis structure would include the symbol of the element as well as the electron dots that can be used to show the number of valence electrons. This is why we call the Lewis structire the Lewis dot structure of a compound.

We can see that the compound here has an amine group as well as a carboxylic group and the Lewis structure would tell us the number of electron pairs that we have on the valence shell of  each of the atoms.

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The percentage yield of the given reaction is 77.33%.

What is percentage yield?
Reactants frequently produce fewer product quantities than predicted by the chemical reaction's formula. The percentage of a theoretical yield that's been produced in a reaction is calculated using the percent yield formula. Working through a stoichiometry problem yields the theoretical yield, which is the ideal quantity of the final product. The actual yield is determined by calculating the volume of the product formed. We can determine the percentage yield by dividing the actual yield by the theoretical yield.

Moles is calculated by using the formula:
Moles of Ammonia:
Given mass of ammonia = 150g
Molar mass of ammonia = 17 g/mol
Putting values in above equation, we get:

Moles of Oxygen
Given mass of oxygen = 150g
Molar mass of oxygen = 32 g/mol
Putting values in above equation, we get:
For the given chemical equation:

By Stoichiometry,
5 moles of oxygen reacts with 4 moles of ammonia.
So, 4.6875 moles of oxygen will react with =  of ammonia
As, moles of ammonia required is less than the calculated moles. Hence, ammonia is present in excess and is termed as excess reagent.
Therefore, oxygen is considered as a limiting reagent because it limits the formation of products.

By Stoichiometry of the given reaction:
5 moles of oxygen gas produces 4 moles of nitric oxide
So, 4.6875 moles of oxygen gas will produce =  of nitric oxide

Now, to calculate the theoretical amount of nitric oxide, we use equation 1: Molar mass of nitric oxide = 30 g/mol
 Given mass of nitric oxide = 112.5 g
Now, to calculate the percentage yield, we use the formula:
Experimental yield = 87 g
Theoretical yield = 112.5 g
Putting values in above equation, we get:
Hence, the percentage yield of the given reaction is 77.33%.

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The product of the reaction is m-nitrobenzaldehyde, option B.

M-nitrobenzaldehyde, also known as meta-nitrobenzaldehyde is an organic aromatic compound that contains a nitro-group which is meta substituted to an aldehyde. It is soluble in water at 2.34 mg/ml and a temperature of 25° C. It is also soluble in ethanol, benzene and slightly in ether. M-nitrobenzaldehyde production process is prepared by nitration.

The carboxylic group is meta directing and has an ortho-para deactivating group therefore, during nitration of benzaldehyde, meta position gains an attachment from the nitro group forming m-nitrobenzaldehyde as product.

The full question is:

Predict the major product for the reaction shown.

a. o-cyanonitrobenzene & p-cyanonitrobenzene

b. m-nitrobenzaldehyde

c. o-cyanonitrobenzenesulphonic acid & p-cyanonitrobenzenesulphonic  acid

d. m-cyanonitrobenzenesulphonic acid

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In a molecule of water, 4 electrons are shared between each hydrogen atom and an oxygen atom.

It is the lowest point in the substance and possesses chemical elements. Atoms don't exist on their own; instead, they combine to create ions and molecules, which combine to create the substances that we can see, feel, and touch. One or more atoms joined together by covalent (chemical) connections make up molecules. Atoms can be imagined as circles with a central nucleus (consisting of protons and neutrons) and one or more concentric circles surrounding it that represent the "shells" or "levels" in which the electrons surrounding the atom's nucleus are located as well as markings that distinguish the electron. every level

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Answer:

G) It would speed up evaporation.

Explanation:

As the temperature increases, the rate of evaporation also increases.