what structural features make benzil yellow and benzoin colorless

In the case of the equilibrium reaction provided, if the concentration of Co(H2O)2+ is increased, the reaction will shift to the right in order to consume the excess Co(H2O)2+ and produce more CoCl2 and H2O.

Conversely, if the concentration of CoCl2 is increased, the reaction will shift to the left in order to consume the excess CoCl2 and produce more Co(H2O)2+ and Cl- ions.

According to Le Chatelier's principle, a change in concentration of one or more of the reactants or products of a chemical reaction at equilibrium will cause a shift in the equilibrium position to counteract the change and re-establish equilibrium.

Specifically, if the concentration of one of the reactants is increased, the reaction will shift in the direction that consumes that reactant in order to restore equilibrium.

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C. Reducing the temperature, is the two changes would make this reaction reactant-favored 2H₂+O₂ 2H₂O + energy

To make the given reaction reactant-favored, we need to shift the equilibrium towards the left side, favoring the formation of reactants (H₂ and O₂) rather than products (H₂O). This can be achieved by considering the impact of pressure and temperature on the reaction.

A. Reducing the pressure:

Reducing the pressure would not favor the reactants. According to Le Chatelier's principle, decreasing the pressure will shift the equilibrium towards the side with a higher number of moles of gas. In this case, both sides of the reaction have the same number of moles of gas (two moles), so reducing the pressure will not have a significant effect.

B. Increasing the pressure:

Increasing the pressure would not favor the reactants either. Again, according to Le Chatelier's principle, increasing the pressure will shift the equilibrium towards the side with fewer moles of gas. As both sides have the same number of moles of gas, changing the pressure will not impact the equilibrium.

C. Reducing the temperature:

Reducing the temperature would favor the reactants. The reaction is exothermic (releases energy), and according to Le Chatelier's principle, decreasing the temperature favors the reaction that produces heat. Therefore, reducing the temperature would shift the equilibrium towards the reactants (H₂ and O₂) side.

D. Increasing the temperature:

Increasing the temperature would not favor the reactants. In an exothermic reaction, increasing the temperature would shift the equilibrium towards the products (H₂O) side to absorb the additional heat.

In conclusion, reducing the temperature (option C) would make the reaction reactant-favored, favoring the formation of H₂ and O₂ rather than H₂O. Therefore, Option C is correct.

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Answer:

8

Explanation:

This number normally equals the number of electrons that atom needs to have a total of eight electrons (an octet) in its outer shell.

When you add acid to a starch solution, a chemical reaction occurs. This reaction is known as hydrolysis, where water molecules are split into hydrogen ions (H+) and hydroxide ions (OH-). The hydrogen ions from the acid combine with the starch molecules to break down the starch into simpler forms, such as glucose.

At the molecular level, starch is a complex carbohydrate made up of long chains of glucose molecules. When acid is added, the acid provides the hydrogen ions needed to break the bonds between the glucose molecules. This leads to the breakdown of starch into smaller glucose units.

On the other hand, when you mix glucose with water, you have a simple sugar dissolved in a liquid. The glucose molecules are already in their simplest form and can easily dissolve in water.

Therefore, when you compare the acid-starch reaction to the glucose-water mixture, the acid-starch reaction more closely resembles the starch-water mixture. In both cases, the starch is broken down into simpler forms.

In summary, when acid is added to a starch solution, it undergoes hydrolysis, breaking down the starch into smaller glucose units. This process is similar to the breakdown of starch in the presence of water, as the acid provides the necessary hydrogen ions for the reaction.

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4.2228 g of solid potassium sulfide should be added to make an aqueous solution of 0.180 M potassium sulfide for an experiment in lab, using a 300 ml volumetric flask.

The given molarity of the aqueous solution of potassium sulfide is 0.180 M and the volume of the solution is 300 mL. We are required to find out the amount of solid potassium sulfide required to make the solution.

The formula to calculate the number of moles is: Number of moles = Molarity x Volume (in liters) 1. Convert the volume into liters.300 mL = 0.3 L2. Substitute the given values in the above formula.Number of moles = 0.180 M x 0.3 LNumber of moles = 0.054 mol3. The molecular formula of potassium sulfide is K2S. It means there are two moles of K for one mole of K2S. Hence, we can calculate the moles of K.Number of moles of K = 2 x 0.054

Number of moles of K = 0.108 mol4. The molar mass of K is 39.1 g/mol. Hence, we can calculate the mass of K required to make 0.108 mol.Number of grams of K = Number of moles x Molar massNumber of grams of K = 0.108 mol x 39.1 g/mol

Number of grams of K = 4.2228 g. Hence, 4.2228 g of solid potassium sulfide should be added to make an aqueous solution of 0.180 M potassium sulfide for an experiment in lab, using a 300 ml volumetric flask.

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Answers

Explanations

Answer:

The element was one of the alkaline metals, the dull appearance comes from the metal reacting with oxygen and oxidizing its outer surface as alkaline are known for their enormous reaction with oxygen in the air and water.

Another ability of this group of elements is the ability to conduct electricity. And they are also easy to cut with a kitchen knife.

Answer: Wowwwww

Explanation:yes

When NaOH is added, benzoic acid is neutralised, resulting in the benzoate ion, which then moves into the aqueous layer while the other two organic molecules remain in the ether.

A base is NaOH. Water (H2O) is created when the H from the OH of benzoic acid and the OH from NaOH mix. The O- of the benzoic acid is joined by the Na+ cation. So, the products are water and sodium benzoate.

The basic sodium hydroxide is powerful. Due to this, a neutralisation reaction occurs in which sodium hydroxide, a strong base, produces ions that neutralise the effects of any ions that are already present in the solution. Salt and water are produced when an acid and a powerful base react. thereby stopping the reaction.

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The complete question is:

The complete procedure is given in the image below:

Answer the following question after following the procedure:

What is the purpose of the naoh added in step 2?

Methionine is always the first one to be incorporated into a newly made protein followed by identification of the only start codon on mRNA.

Amino acids are transferred by initiator tRNAs to the mRNA strand by the process of translation. Each tRNA has an anticodon, which is a group of three nucleotides that pairs with an appropriate mRNA codon to form a stable bond. The amino acid that the codon specifies is carried by the opposite end of the tRNA. AUG is one codon that serves as a "start" signal to initiate translation (it also specifies the amino acid methionine).

All newly created proteins have methionine as the first amino acid at their N-terminal end, the end of a protein that is synthesised initially, because the initiator tRNA always carries this amino acid (in bacteria, a modified version of methionine called formylmethionine is employed).

Transfer RNAs, or tRNAs, are molecules that read an mRNA's codons sequentially (from the 5' end to the 3' end) during translation.

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In the context of a balanced chemical equation, a coefficient is a number to the left of a formula and it applies to the entire formula.

A subscript is a number to the lower right of an element or ion within a formula and it applies only to that element or ion.Coefficients are used to balance chemical equations by adjusting the relative amounts of reactants and products to satisfy the law of conservation of mass.

When balancing an equation, only coefficients should be added or changed, not subscripts, because changing a subscript would change the identity of the chemical species in the formula, which would result in an entirely different chemical reaction.

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The true statements about nitrogenase are: "III. Cleaves a triple bond" and "IV. Generates ammonia". So, the correct option is "III and IV".

Nitrogenase is an enzyme that catalyzes the reduction of nitrogen gas (N2) to ammonia (NH3) in the process called nitrogen fixation. During this process, the triple bond in N2 is cleaved, and ammonia is generated as a product.

Nitrogenase is an enzyme that is responsible for the conversion of atmospheric nitrogen (N2) into ammonia (NH3), a form of nitrogen that can be utilized by plants and other organisms. During catalysis, nitrogenase cleaves the triple bond in N2, allowing it to be reduced to NH3.

This process requires the binding of N2 to a metal ion, specifically iron and molybdenum, within the active site of the enzyme. Therefore, options III (cleaves a triple bond) and IV (generates ammonia) are both correct. Option II (has N2 as its only substrate) is not entirely accurate as nitrogenase can also convert other nitrogen-containing compounds such as acetylene and cyanide.

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Answer:

A. There must be a change in chemical properties.

At least 2 or 3 atoms must change for it to be considered chemical. There must be some type of reactants that will change this. Otherwise, it's not a chemical reaction.

Hope this helps!

Explanation:

hope it helps thanks ❤

brainliest please

Answer:

Explanation:

human obtains energy by eating food. as food is digested n broken down in our digestive system, energy is released to our body.

Answer:

hot air rises and expanded the balloon

Explanation:

thats it.

Answer:

Water :H2O

Carbon dioxide :CO2

Oxygen :O2

Glocuse :C6H12O6

Answer:

water = H20

carbon dioxide = CO2

oxygen = 02

glucose= C6H1206

Explanation:

Explanation:

Refer to pic...........

.

Answer:

2/3 xX ml of gas

Explanation:

P1V1= P2V2

2 x X= 3 x y

y (new volume)= 2/3 x

0.66 x will be the new volume when the pressure of x mL of gas was increased from 2 ATM to 3 ATM at a constant temperature.

The ideal gas law (PV = nRT) relates to the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).

Given:

\(P_1\)= 2 ATM

\(V_1\)= x mL

\(P_2\) =3 ATM

\(V_2\) =?

\(P_1V_1= P_2V_2\)

2 x X= 3 x Y

Y(new volume)= 0.66 x

Hence, 0.66 x will be the new volume when the pressure of x mL of gas was increased from 2 ATM to 3 ATM at a constant temperature.

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Answer:

24 electrons

Explanation:

In order to write the Chromium electron configuration we first need to know the number of electrons for the Cr atom (there are 24 electrons). Once we have the configuration for Cr, the ions are simple.

I hope this is correct!

Answer:

6.02 × 10^23 molecules = 1 mole

5.27 × 10^45 molecules = x

x = 5.27 × 10^45/ 6.02 × 10^23 × 1

= 8.754 × 10^21 mol

I don't know if it's correct but based on the question that was the only way I saw how to work it out

A) All of the following enforce municipal securities industry rules EXCEPT Office of the Comptroller of the Currency.

The Office of the Comptroller of the Currency (OCC) primarily regulates and supervises national banks and federal savings associations. While it plays a crucial role in overseeing the banking system, it is not directly responsible for enforcing municipal securities industry rules. On the other hand, the other options listed—MSRB (Municipal Securities Rulemaking Board), FINRA (Financial Industry Regulatory Authority), and SEC (Securities and Exchange Commission)—are all involved in regulating and enforcing rules related to municipal securities.  The MSRB is a self-regulatory organization that creates rules and regulations for broker-dealers and banks engaged in the municipal securities market. FINRA is another self-regulatory organization that oversees brokerage firms and their registered representatives, including those involved in municipal securities transactions. The SEC, as the primary regulatory body for the securities industry, has the authority to enforce rules and regulations related to municipal securities to protect investors and ensure fair and transparent markets.

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Answer:

We all know that the characteristics are proven, not just an opinion, because they meet the correct standards. The four inner planets are formed of rock and metal and have shorter orbits, slower rotation, and no rings. The four outer planets have longer orbits and spins, as well as a composition of gases and liquids, as well as a large number of moons and rings. The outer planets are known as gas giants because they are comprised of hydrogen and helium.

Answer: For fun FLVS

Explanation:

Answer:

The answer to this is A. One kind of atom

Explanation:

The other options make no sense whatsoever. But enjoy.

I hope this helped.

Answer:

A. One kind of atom

Explanation:

Answer:

K I will attempt

Explanation:

a)

\(O_2_{(g)}+ 2H_2_{(g)} => 2H_2O_{(l)}\\\)

b)

1 : 2 : 2 (I don't know if this is what the question wants but it is what I would answer)

c)

Hydrogen because it requires 2 moles of H2 to react with 1 mole of O2

d)

24 moles of water. Look at stoichiometric coefficient. 2:2 means 24 moles you get 24 moles

e)

Oxygen. 2 < 5/2. Remember, 1 mole of O2 requires 2 moles of H2. But 5/2 is still greater than 2

f)

First, let's find out how many moles of water we can get. Since O2 is the limiting reactant, and O2:H2O ratio is 1:2, we will get 4 moles of H2O. Then, we can multiply 4 by Avogadro's number which is \(6.022*10^{23}\) to get the number of molecules. We get: 2.41 * 10^24 molecules of water.

Answer:

I'ma just take the point thank you very much

Answer:

it answer is (B)

the formula of toluene is C6H5CH3

it consists of a benzene ring with methyl group attached to it

When you compare the results of the grease spot test for potato chips, white candle wax, vegetable oil and rubbing alcohol, you will find that all of these substances can be used to remove grease stains from clothes. However, there are some differences in their effectiveness and ease of use.

Potato chips are often used as a quick fix for small grease stains on clothing. You simply place a chip on the stain and press down firmly. The grease from the chip absorbs the grease from the stain, leaving the fabric clean. However, this method is not always effective and may leave a residue on the fabric.

White candle wax can be used to remove grease stains from clothes by melting the wax onto the stain and then peeling it off once it has hardened. This method is effective, but can be time-consuming and messy.

Vegetable oil can be applied to grease stains and left to sit for a few minutes before washing. It is effective at removing the stain, but can be difficult to remove from the fabric.

Rubbing alcohol is a common household cleaner that can be used to remove grease stains. It can be applied directly to the stain and rubbed with a clean cloth. It is effective and easy to use. However, it should be used with caution on delicate fabrics as it can cause damage.

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