Devise a route to convert propene to 1-bromo-2-propanol. Specify, in order, the reagents you would use. The reaction may require more than one step. If there is more than one feasible route, show only one. Specify reagents using letters from the table, first reagent on the left. Example: ab a NBS f K2Cr207, H2SO4, k OsO4/H202 H2O, heat g Cl2, heat or light h Cl2 b H2, Pd I 1. BH3 2. H202, NaOH c H2O, H2SO4 m SOCl2, pyridine d PCC i HCI n HBr Br2 in H20 j NaOH o Br2, e The reagents are in order of use):

One mole or 55.8 g of iron is required to produce one mole or 63.5 g of copper. Thus, mass of iron required to produce 258 Kg of copper is 215 Kg.

Copper is a transition metal which is a good thermal and electrical conductor. Copper sulphate reacts with metallic iron forming ferrous sulphate and copper metal as the reaction written here:

[tex]\rm CuSO_{4} + Fe \rightarrow FeSO_{4} + Cu[/tex]

Atomic mass of Fe = 55.8 g/mol

Atomic mass of Cu = 63.5 g/mol

As per the reaction 55.8 g or 0.05 Kg of Fe produces 0.06 Kg of Cu. Thus, mass of Fe needed to produce 258 Kg of Cu is:

= (258 Kg × 0.05 Kg) / 0.06 Kg

= 215 Kg.

Thus, 215 Kg of Fe is required to produce 258 Kg of copper.

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Volume of NH3,at the same temperature and pressure, will be 3.8L



First permit's write the balanced equation for the response :
⇒
via analyzing the coefficients of the response we discover that the relationship among the compounds is
(I)which means that as an example with 1 mole of and with 3 moles of we are able to acquire 2 moles of

1 mole of gas at STP (wellknown Temperature and pressure) has a quantity of 22.4 L

The moles and the extent in liters vary immediately consequently we are able to work with the volume and the connection (I)

If we divide the volume of and we gain :(II)The range in (II) satisfies the connection (I) so we are able to write in phrases of liters that :

With of and of (three instances greater liters that ) we will produce of (two times greater liters that ) satisfying the connection (I)

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The important enzyme phosphopantetheinyl transferase, crucial for the manufacture of cellular lipids and virulence factors in Mycobacterium TB, has recently been verified as a target for the treatment of tuberculosis.

Amidinourea (AU), a recently discovered inhibitor, was investigated in terms of the structure-activity connections, with an emphasis on the biochemical potency, identification of active molecules' whole-cell on-target activity, and profiling of specific active congeners. The TB-causing Mycobacterium tuberculosis (Mtb) has a complicated cell wall that makes it difficult for potential antibiotic molecules to penetrate it. But there are lots of potential pharmacological targets in the biological processes that produce the cell wall. Mycolic acids are lipids that are typically present in the cell walls of mycobacteria. Delamanid and pretomanid, two TB medications developed since 2012, block the formation of mycolic acids, albeit it is unclear exactly how they work.

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The equilibrium constant of the redox reaction system is gotten as 3.67 * 10^11.

We know that the equation as it is a redox reaction.  We would need to obtain the standard electrode potential of the cell and use this information to get the free energy of the system. Then we can now substitute values to get the equilibrium constant.

Now;

ΔG = -nFEcell

ΔG =Change in free energy

n = Number of moles of electrons

F = Faraday's of electricity

Ecell = Cell potential

Ecell = 1.23 V - 0.770 V

= 0.46 V

Then;

ΔG = -(2 * 96500 * 0.46)

ΔG = -88780 kJ/mol

Now we have;

ΔG = -RTlnK

R = gas constant

T = temperature

K = equilibrium constant

-88780 = -(8.314 * 401 * lnK)

lnK =  -88780/ -(8.314 * 401)

lnK = 26.6

K = 3.67 * 10^11

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A sample of gas has an initial volume of 5.6L at a pressure of 757mm Hg. If the volume of the gas is increased to 9.0L, then the pressure will be 438 mm Hg.

This empirical relationship, established in 1662 by physicist Robert Boyle, indicates that the pressure (p) of a given quantity of gas changes inversely with its volume (v) at constant temperature; in equation form, pv = k, a constant.

Given that,

initial volume (V₁) = 5.6 L

final volume (V₂) = 9.0 L

initial pressure (P₁) = 757 mm Hg

final pressure (P₂) = ?

As, we know

P₁V₁ = P₂V₂

now, putting the values:

757 mm Hg × 5.6 L = P₂ × 9.0 L

P₂ = 438 mm Hg

The pressure becomes:  438 mm Hg

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Taking into account the reaction stoichiometry, a mass of 6.24 grams of Ba(OH)₂ are required to react with 12.2 grams of caesium phosphate.

In first place, the balanced reaction is:

3 Ba(OH)₂ + 2 Cs₃PO₄ → Ba₃(PO₄)₂ + 6 CsOH

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The molar mass of the compounds is:

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

The following rule of three can be applied: If by reaction stoichiometry 987.4 grams of Cs₃PO₄ react with 504.9 grams of Ba(OH)₂, 12.2 grams of Cs₃PO₄ react with how much mass of Ba(OH)₂?

mass of Ba(OH)₂= (12.2 grams of Cs₃PO₄× 504.9 grams of Ba(OH)₂)÷ 987.4 grams of Cs₃PO₄

mass of Ba(OH)₂= 6.24 grams

Finally, a mass of 6.24 grams of Ba(OH)₂ are required.

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The reaction supports the conservation of mass principle because the number of atoms of different elements before and after the reaction is balanced.

The law of conservation of mass states that mass can neither be created nor destroyed during the course of reactions. However, the mass can be converted into other forms during the course of reactions.

This law is extended to atoms and matters as well.

Thus, when you consider the equation highlighted:

[tex]2C + O_2 --- > 2CO[/tex]

One can see that there are 2 carbon atoms before and after the reaction. Also, there are 2 oxygen atoms before and after the reaction.

Thus, the equation is a balanced equation and a balanced reaction supports the law of conservation of mass, matter, or atoms.

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The final temperature of the water is equal to 67 °C.

The amount of heat required to heat the given amount of sample to a certain temperature can be calculated as:

Amount of absorption of heat = m ×S ×T

The final temperature of the mixture when two samples of different amounts and at different temperatures are mixed together is calculated as:

[tex]{\displaystyle T_f =\frac{m_1T_1+m_2T_2}{m_1+m_2}[/tex]

Given, the sample of water, m₁ = 26.7 g at temperature, T₁ = 26°C

The sample of water, m₂ = 41.7 g at temperature, T₁ = 93.7°C

The final temperature of the mixture will be:

[tex]{\displaystyle T_f =\frac{26.1 \times 26 + 41.7 \times 93.7}{26.7 + 41.7}[/tex]

T = 67°C

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Answer:

Explanation:

I did the lab

Effective nuclear charge for Main Group elements would increases left to right across a period and decreases down a group.

Effective nuclear charge is the positive charge that nuclear protons have and that attracts valence electrons. Due to the shielding effect, the effective nuclear charge is always smaller than the total number of protons present in a nucleus.

Over time, effective nuclear charge increases but electron shielding stays the same. This draws the electron cloud closer to the nucleus, increasing the nuclear attraction to the outermost electron and making removal more difficult (requires more energy).

As we travel down the group, electrons are added to a new orbital, increasing the atomic size and decreasing the impact of the nucleus on the outermost electron, resulting in a lower value of the effective nuclear charge.

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The processes that converts chemical potential energy to heat is: C. Combustion of hydrocarbons, such as the methane in natural gas.

Boiling water is a necessary task for a variety of purposes, and natural gas is a powerful and reliable source of energy used for this purpose. Natural gas is a clean and efficient energy source that can be used to heat homes, water, and even cook food. It is also an environmentally friendly alternative to other energy sources, such as coal and oil, which are more harmful to the environment. This essay will discuss the benefits of utilizing natural gas for boiling water.

One of the primary advantages of using natural gas for boiling water is its affordability. Natural gas is a relatively inexpensive fuel source, and it is also easy to access. As a result, it is a cost-effective way to boil water, as it is more cost-effective than other fuel sources, such as electricity and propane. In addition, natural gas is a clean fuel source, as it does not generate any harmful emissions when burned. This makes it an ideal choice for boiling water, as it does not contribute to air pollution.

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The correct option is c)the volume of the NaOH solution used to reach the first equivalence point is twice the volume of NaOH used to go from the first equivalence point to the second equivalence point.  

A titration is a type of experiment that is used to determine the amount of a certain substance contained in a sample. A diprotic acid is an acid that can donate two protons (H+) per molecule. When performing a titration of a diprotic acid with NaOH, there are two equivalence points, or points when the number of moles of acid is equal to the number of moles of base.

The first equivalence point occurs when all of the acids have been neutralized, while the second equivalence point occurs when the excess base has been neutralized.   The volume of NaOH solution used to reach the first equivalence point is twice the volume of NaOH used to go from the first equivalence point to the second equivalence point.

This is because, for each mole of acid, two moles of the base are required to reach the first equivalence point, while for each mole of acid, only one mole of the base is required to reach the second equivalence point. Therefore, twice as much base is required to reach the first equivalence point compared to the second equivalence point. The volume of the beaker used in the titration does not affect the amount of NaOH used to reach either the first or second equivalence point.

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it's Gram because why not

Hello, Tia! Mass is measured in kilograms or grams. It tells the amount of matter in an object.

Please give me brainliest for more high quality answers! - longstretch

Answer:

C. combustion reaction

combustion reaction is a type of reaction that involves the reaction of a compound with oxygen gas to release energy

Answer:

C. A combustion reaction

Explanation:

Every hydrocarbon has a property of combustion

Ethyne and Oxygen form Carbon Dioxide and Water.

Ethyne aka Acetylene

\quora

Compared to the circumference of the Earth Measured at the Equator, the circumference of the Earth measured through the poles is slightly smaller.

The circumference of a circle or sphere is the distance around the sphere or circle.

The circumference of the Earth varies from the equator to the North or South Poles.

The reason is that the shape of the earth is not completely spherical, but is elliptical.

Hence, at the North and South poles, the circumference of the earth is smaller than at the equator.

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Option(A) clear and calm  is the most likely forecast for California.

What is forecasting in climate?

Climate predictions anticipate weather averages and other climatic features from a few weeks to a few years in advance. Forecasters are increasingly making such predictions using detailed models of the Earth's climate system.

How would you describe California weather?

The majority of California has a Mediterranean-like climate, with warm, dry summers and moderate, rainy winters. The typical daily high temperature on the coast is approximately 70°F and higher, but can occasionally reach 80°F or more on the warmest summer days; freezing temperatures are uncommon, even in January.

Hence Option(A) is a correct answer.

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For use with fires involving common combustibles, flammable liquids, and powered electrical equipment, an extinguisher with an ABC rating is appropriate.

Monoammonium phosphate, a dry chemical, is used in ABC Fire Extinguishers to quickly put out a variety of fires by smothering the flames. All three types of fire can be extinguished using this light yellow powder: Paper, wood, and rubbish are all in Class A. Gases and liquids fall under Class B. Oil, textiles, paper, liquid, and electrical fires can all be extinguished with dry chemical fire extinguishers. This is the best fire extinguisher to keep on hand so that you can put out various fires quickly and safely. There are mostly two kinds: ABE The types A, B, and E are handled.

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The Correct Option is :

One grey sphere, Four white spheres, and One red spheres.

For the pair of compounds CH 3 CH 2 CH 2 OH or CH 3 OH the one with the higher vapor pressure at a given temperature is?

Vapor pressure is always going to be inversely proportional to the boiling point. The low the boiling point, compound will have the higher vapor pressure.  

1. CH₃OH exhibits the  low boiling point in comparison to CH₃CH₂CH₂OH that exhibits the high boiling point. So, CH₃OH has high vapor pressure.

2. CH₃OH is polar and it  exhibits high boiling point because of hydrogen bonds, in comparison H₂CO exhibits low boiling point and has no hydrogen bonds. So, H₂CO has high vapor pressure.

3. CH₄ is non-polar solvent and exhibits less boiling point in comparison to that of CH₃Cl, which is polar and exhibits high boiling point. So, CH₄ has high vapor pressure.  

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0.1825 M is the concentration of H2SO4

To do this, let's write equation again:

Na2CO3 + H2SO4 ---------> H2O + CO2 + Na2SO4

As we can see, equation is already balanced and we can also see that mole ratio between the acid and the carbonate is 1:1, this means that moles of the acid, would be the same moles of carbonate, therefore, we can use the following expression:

M₁V₁ = M₂V₂ (1)

1: Is the carbonate

2: is the acid

To get the concentration of acid, we need to calculate the moles of carbonate used. This can be done using the molecular mass of sodium carbonate, which is 105.9888 g/mol, so the moles:

n₁ = 0.512/105.9888 = 0.0048 moles

Now that we have moles, we can use (1) and calculate the concentration of acid.

We know :

n₁ = M₁V₁ (2)

Replacing in (1) we have:

n₁ = M₂V₂

M₂ = n₁ / V₂ (3)

Now all we have to do is replace values and solve for concentration:

M₂ = 0.0048 / (0.02630) = 0.1825 M

This is concentration (molarity) of the H2SO4

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The offered assertion claims that a mixture of the aqueous solutions of KCl and NaO will result in the formation of a precipitate.

The word "aqueous" in an equation denotes a substance that is disseminated in fluids (a solution in water). For instance, sodium chloride aqueous solution is produced by adding sodium hydroxide solution to diluted hydrochloric acid. When liquid is used to describe a reaction, liquid substances are formed.

Liquids that are practically incompressible are classified as liquids, whereas aqueous liquids are those in which water serves as the solvent. This is the main distinction between liquids and aqueous fluids. Electrolytes are a sort of liquid as a result.

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The answer is true. The yeast engages in aerobic respiration in the presence of oxygen, converting carbohydrates (a source of sugar) into carbon dioxide and water.

The yeasts do fermentation in the absence of oxygen, turning carbohydrates into alcohol and carbon dioxide. Aerobic growth is substantially better for yeast cells. They cannot execute oxidative phosphorylation in anaerobic conditions, therefore they must manufacture all of their ATP through less effective glycolysis. When there is water, sugar, and no oxygen present, yeasts perform fermentation. The yeasts engage in anaerobic respiration, which implies their metabolic processes do not include the consumption of oxygen.

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The wavelength of light that is absorbed falls between 490 and 530. On the visible color spectrum, green lies between cyan and yellow. Light with a prominent wavelength of 495–570 nm is used to evoke it.

The color wheel has 12 primary colors. These colors are red, orange, yellow, spring green, chartreuse green, blue, violet, magenta, and rose on the RGB color wheel. There are primary, secondary, and tertiary hues on the color wheel.

The color wheel, also known as a color circle, is a circular collection of hues arranged according to how chromatically similar they are to one another.

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[tex][\huge\color{cyan}\boxed{\colorbox{red}{ANSWER}}[/tex]

The Valence Shell Electron Pair Repulsion Model is often abbreviated as VSEPR (pronounced “vesper”).

It is basically a model to predict the geometry of molecules. Specifically, VSEPR models look at the bonding and molecular geometry of organic molecules and polyatomic ions. It is useful for nearly all compounds that have a central atom that is not a metal.

Explanation:

[tex]\small\color{red}\boxed{\colorbox{blue}{ BOARINGBOY}}[/tex]

Answer:

Your answer will be 34.5 g

Explanation:

The molar mass of aluminum (Al) is 26.98 g/mol. In the formula above, replace the values. This results in 34.5 g of aluminum (Al) being required.

The levels of inorganic nitrogen in Arctic ecosystems were substantially lower than the amount of nitrogen actually taken up by plants as : Arctic sedges can take up organic forms of nitrogen.

Arctic is a unique ecosystem with complex food web made up of organisms adapted to extreme conditions and is one of the most biologically productive ecosystems supporting many large fisheries and  migratory birds that come to the Arctic in the summer to breed.

Nitrogen lack is related to the soil type. Excessive irrigation and heavy rains causes nitrogen deficiency because of overwatering. Lack of soil moisture hinders the absorption of water-soluble nutrients by plant roots.

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The final equation is PCl3(aq) → PCl4-(aq) + Cl-(aq)

(a) All tetrafluoride compounds listed are non-polar. This is due to the symmetrical distribution of electrons all around the central atom, as shown by the Lewis electron point structure.

SiF4:

F

|

F-Si-F

|

F

SF4:

F

|

S-F

|

F

XeF4:

F

|

Xe-F

|

F

(b) The ascending order of melting points for the listed compounds is as follows:

SnF2< SeF2< KrF2. This is because the intermolecular force increases as the size of the atom increases. SnF2 has the smallest atoms. In other words, it has the weakest intermolecular forces and the lowest melting point. Since SeF2 has slightly larger atoms, it has slightly stronger intermolecular forces and a higher melting point. KrF2 has the largest atom, the strongest intermolecular forces and the highest melting point.

(c) The carbon-oxygen bonds of the oxalate ion (C20%) are all the same as the central carbon atom is attached to her two oxygen atoms and both of these bonds are double bonds . The Lewis electron point structure of the oxalate ion is:

O=C=O

(d) When PCl3 is dissolved in a polar solvent, the solution conducts electricity because the PCl3 molecules in the solution dissociate into ions. The dissociation process is represented by the following chemical formula:

PCl3(aq) → PCl4-(aq) + Cl-(aq)

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Student combines a solution of NaCl (aq)with a solution of AgNO₃ (aq), and a precipitate forms evidence that ionic bonds formed during the precipitation is The precipitate has a high melting point. The correct answer is C.

Ions with opposing charges join together to create ionic bonds. The strong electrostatic forces of attraction between the oppositely charged ions cause them to melt at a high temperature.

In ionic or aqueous solutions, the precipitation reaction takes place. Since the ions actively participate in the reaction and produce the product, precipitation reactions are also referred to as ionic reactions. Temperature, solution concentration, buffer solution, and other factors all affect how these reactions behave.

Precipitates are the insoluble salts created during precipitation reactions. Precipitation reactions are often double displacement events that result in the formation of the precipitate, a solid form of residue.

Ionic linkage. If an atom receives electrons, it becomes a negatively charged ion (cation), but if it loses them, it becomes a positively charged ion (cation) ( anion ). Following is a quick discussion on ionic bonds. To learn more, go to chemical bonding: the ionic bonding process.

Your question is incomplete but most probably your full question was

A student combines a solution of NaCl(aq)NaCl(aq) with a solution of AgNO3(aq)AgNO3(aq), and a precipitate forms. Which of the following is evidence that ionic bonds formed during the precipitation?

A) The resulting solution is colorless.

B) The resulting solution conducts electricity.

C) The precipitate has a high melting point.

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According to Avogadro's law, equal volumes of various gases each contain an equal number of molecules at the same temperature and pressure. Under the presumption of an ideal (perfect) gas, this empirical relation can be deduced from the kinetic theory of gases.

Avogadro's number, or the Avogadro constant, is the precise number of molecules in one gram-mole of a substance, defined as the molecular weight in grams, which is equal to 6.02214076 1023. As an illustration, since oxygen has a molecular weight of 32.00, one gram-mole of oxygen weighs 32.00 grams and contains 6.02214076 1023 molecules.

According to Avogadro's rule, the volume occupied by one gram-mole of gas is approximately 22.4 litres (0.791 cubic foot) at standard temperature and pressure (0 °C, 1 atmosphere).

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Since the number of atoms which are reacting are equal to the number of to the number of atoms in the product, this reaction demonstrates that matter is neither created nor destroyed in a chemical reaction.

Any system that is closed to all exchanges of matter and energy is subject to the law of conservation of matter, which is a general law of physics and chemistry. This law states that regardless of how the components rearrange themselves, the mass of an object or group of things remains constant over time.

A chemical reaction is a procedure that causes one group of chemical components to change chemically into another. Chemical reactions, which can frequently be described by a chemical equation, traditionally include changes that solely affect the locations of electrons in the formation and dissolution of chemical bonds between atoms, with no change to the nuclei.

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