what is the density in g/l of co at 1140 torr and 75.0 °c?

The reaction converting glucose-6-phosphate to fructose-6-phosphate is catalyzed by an enzyme called phosphohexose isomerase.What is an enzyme?An enzyme is a protein molecule that helps to speed up chemical reactions that take place in all living organisms by lowering the activation energy needed to start these reactions.

Each type of enzyme performs one specific reaction for converting one or more substrates (reactants) into one or more products.The reaction converting glucose-6-phosphate to fructose-6-phosphate is part of the glycolytic pathway that occurs in the cytoplasm of cells. During the process of glycolysis, a molecule of glucose is broken down into two pyruvate molecules, and a net of two ATP molecules is produced. The reaction converting glucose-6-phosphate to fructose-6-phosphate is important because it enables the rearrangement of the functional group of glucose-6-phosphate, from an aldehyde to a ketone, allowing for the subsequent reactions of glycolysis to proceed.In conclusion, the reaction converting glucose-6-phosphate to fructose-6-phosphate is catalyzed by an enzyme called phosphohexose isomerase. The reaction is an important part of glycolysis, which is the metabolic pathway that breaks down glucose to produce ATP.

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Answer:

Only thing that should hold constant is the Density of the water

Explanation:

Since you are removing some of the water, the Mass and Volume will decrease.

Density of the water are the properties should have the same value for both of her measurements.

The density can be described as the mass per unit volume like it is the ratio between mass and volume, how much stuff an object has in a unit volume.

Density is a determining factor of matter, where it shows how tightly the matter is crammed together, the term was discovered by the Greek scientist Archimedes

The density can be calculated as the mass (m) can be divided by the volume (v)

Density = Mass/Volume

The SI unit of density is kilogram per cubic meter (kg/m3).

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Answer:

All are correct

Explanation:

a. when Thomson discovered electrons he called them copuscles.

b. Millikan calculated chage on electron which is -1.6022 x \(10^{-19}\)C

c. Charge to mass ratio of electron is fixed that is 1.758820 x \(10^{11}\)C/kg

d. Although electons have mass (9.1 x \(10^{-31}\)kg) but is very small therefore it is not taken while calculating mass of atom.

Answer:

one is across

Explanation:

Answer:

32 gm O

Explanation:

there are 16 gm of O in each 18 gm of water ....the other two grams are H

so there would be 32 gm of oxygen in 36 gm water

Answer:

B their larger size . this is right

Answer:

The answer is B. here is proof. Plz mark brainliest.

Explanation:

A potassium atom's ground state electron configuration is 1s2, 2s2, 2p6, 3s2, 3p6, 4s1.

An atom's electron configuration is a picture of how electrons are arranged in relation to orbital shells and subshells. Consequently, this is potassium's electron configuration.

Making Electron Configurations in Writing. Write the energy level (the period) first, then the subshell that needs to be filled, and finally the superscript, which indicates how many electrons are in that subshell. The atomic number, Z, is the sum of all the electrons.

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Every one of the following compounds has the following elements and atoms:

Etanol, which is composed of 2 carbon atoms (C), 6 hydrogen atoms (H), and 1 oxygen atom (O).

ZnCl₂ (cloruro de zinc) is composed of 1 zinc atom and 2 chlorine atoms.

HCl (ácido clorhdrico), which consists of one hydrogen atom (H) and one chlorine atom (Cl).

CH₄ (metano), which is composed of 4 hydrogen atoms and 1 carbon atom.

CO₂ (dióxido de carbono), which is composed of one carbon atom and two oxygen atoms. Two carbon atoms that are connected to one another by a single bond make up etanol.

Each carbon atom additionally has three hydrogen atom bonds, and one carbon atom has a single link with an oxygen atom.

One zinc atom is joined by a single bond to two chlorine atoms in cloruro de zinc. One hydrogen atom and one chlorine atom are joined together in ácido clorhdrico by a solitary bond.

One carbon atom and four hydrogen atoms are joined together in metano by single bonds. One carbon atom is double-bonded to two oxygen atoms in dióxido de carbono.

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Water beads on a freshly washed or waxed car due to the interplay between the properties of water and the car's finish or wax. The two main characteristics of water and the car's finish or wax cause this incident are

Surface Tension and Hydrophobicity.

There are two main factors at play:

Surface Tension: Water molecules are cohesive and exhibit a property known as surface tension. Surface tension is the force that allows water molecules to stick together and form droplets. When water is applied to a smooth surface, such as a freshly washed or waxed car, the cohesive forces of water molecules cause them to minimize their contact with the surface and form droplets.

Hydrophobicity: The car's finish or wax can have hydrophobic properties. Hydrophobic substances repel or resist water. When the car's surface is treated with wax or a hydrophobic coating, it creates a barrier between the water droplets and the surface. The hydrophobic nature of the wax or coating causes water to bead up and roll off the surface instead of spreading out and wetting it.

In summary, the combination of water's surface tension and the hydrophobic properties of the car's finish or wax lead to water beading up on the surface, rather than spreading out. This effect enhances the aesthetic appearance of the car and also helps to prevent water spots and potential damage from contaminants dissolved in the water.

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The correct option is B. I, II and III are correct. Gene regulatory mechanisms in eukaryotes and prokaryotes are different.

The differences are Chromatin packing: Eukaryotes perform chromatin packing. The DNA in eukaryotes is wrapped around histones, which results in compacting the DNA. Chromatin packing is not performed by prokaryotes. Enhancers: Enhancers are regulatory sequences present in the DNA of eukaryotes. They are not present in prokaryotes. The enhancer influences the transcription of the genes in eukaryotes. Multiple basal transcription factors: Eukaryotes possess multiple basal transcription factors, which are not present in prokaryotes. The transcription process is different in both eukaryotes and prokaryotes. Prokaryotes do not require basal transcription factors. The structure of adenine is different in eukaryotes: This statement is incorrect. Adenine has the same structure in both eukaryotes and prokaryotes. Nuclear export of RNA: Prokaryotes do not have nuclei. This statement is not true for prokaryotes. They do not have a nucleus for the nuclear export of RNA.

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Answer:

No

Explanation:

In the hot pack, as the water reacts with the magnesium sulfate, the pack becomes bigger is not an indication that new atoms have been created or produced.

As with all chemical reactions, they all obey the law of conservation of matter which states that "in chemical reactions, matter is neither created nor destroyed but atoms simply recombine".

The reason why the hotpack becomes bigger is because the atoms gain more volume.

The smallest angle, measured from the reflecting planes, at which constructive interference of an X-ray beam is observed is approximately 27.2 degrees.

To determine the smallest angle of constructive interference, we can use Bragg's Law, which states that constructive interference occurs when the path difference between two waves is equal to an integer multiple of the wavelength. The formula is given as:

2d sin(θ) = nλ

Where:

d is the distance between the reflecting planes (0.541 nm)

θ is the angle between the incident X-ray beam and the planes (the desired angle)

n is the order of the interference (we are considering the first-order, so n = 1)

λ is the wavelength of the X-ray beam (0.0649 nm)

Rearranging the formula, we get:

sin(θ) = (nλ) / (2d)

θ = arcsin((nλ) / (2d))

Plugging in the values, we have:

θ = arcsin((1 * 0.0649 nm) / (2 * 0.541 nm))

θ ≈ 27.2 degrees

Therefore, the smallest angle at which constructive interference is observed is approximately 27.2 degrees.

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Answer:

The correct answer is - option D. breaking down fats using the enzyme bile.

Explanation:

The role of the liver in the process of digestion is to produce bile juice in order to breakdown or digest fats and some vitamins. Bile is transferred or secreted through the bile ducts from your liver to your gallbladder for storage, or to the small intestine for use.

The two main roles the liver play to help the intestine in the digestion of food is to make and secrete bile and to process and purifying newly absorbed nutrient-rich blood that is coming from the small intestine.

Answer:

Sl reproduction occurs when living organisms combine genetic information from two different types.

Explanation:

Answer:

Sn has a different charge in each of the compounds.

+2, +4 charges, respectively.  

Explanation:

SnO has subscripts of 1, which means it takes only one of each element to make the compound.

We know that oxygen's charge is -2 from the periodic table.

In order for the compound to be neutrally charged,

Sn + O = 0

Sn - 2 = 0.

So, Sn has a +2 charge.

Likewise with the second compound, we know O has a -2 charge.

Sn + 2*(-2) = 0

Sn - 4 = 0

Sn = +4

+2 and +4 are different charges on the Sn cation.  

Answer:

See below

Explanation:

Volume would decrease to temp of approx 4 C  then it would slightly increase to the 1 degree C  point but it would still be a smaller volume than at 18 C .    

  ( this assumes a freezing point of   - 1.11 C for Coke )

Answer: .5m

Explanation:

510.17 centimetres cube is the volume of iron has a density of 7.86 gram per centimetres cube ( 1 centimetre cube = 1ml) and has a mass of 4.01 kg.

Density is the amount of mass of a substance present per volume of the cubic centimetre and it is the ratio of mass of a substance to the volume of the substance with a unit centimetre cube.

The iron has a density of 7.86 gram per centimetres cube and mass of 4.01 kg so,

mass in grams= \(\frac{4.01}{1000} = 0.0041g.\\Density= \frac{mass}{volume}\)

Substituting the values in the equation, we get:-

volume= \(\frac{0.0041}{7.86} = 510.17 cm^{3} .\)

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Answer:

The correct option is;

D. (2)(56 g)

Explanation:

MgCl₂ + 2KOH → Mg(OH)₂ + 2KCl

From the balanced chemical reaction equation, we have;

One mole of MgCl₂ reacts with  two moles of KOH to produce one mole of Mg(OH)₂ and 2 moles of KCl

Therefore, the number of moles of KOH that react with one mole of KCl = 2 moles

The mass, m, of the two moles of KOH = Number of moles of KOH × Molar mass of KOH

The molar mass of KOH = 56.1056 g/mol

∴ The mass, m, of the two moles of KOH = 2 moles × 56.1056 g/mol = 112.2112 grams

The amount in grams of KOH that react with one mole of MgCl₂ = 112.2112 grams ≈ 112 grams =  (2)(56 g).

Answer:

the answer is D

Explanation:

good luck

The two separate "phases" that make up chromatography are the mobile phase, which is the solvent that passes through the paper transporting various compounds, and the stationary phase. The stationary phase does not pass through the paper; it is contained there.

Chromatography is a technique for separating the components of a mixture. To begin the process, the mixture is dissolved in a substance known as the mobile phase, which then carries it through a substance known as the stationary phase. Chemical analysis uses chromatography, a laboratory technique, to separate a mixture into its component parts. The stationary phase is a material that is fixed in a system, and the mobile phase, which is a liquid solvent, dissolves the mixture and carries it through that system.

Chromatography is the most used separation process in chemical laboratories where it is used for analysis, isolation, and purification. It is frequently used in both small- and large-scale production in the chemical process sector.

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In order to reduce the risk of radiation exposure to individuals and environmental contamination, radioactive wastes are kept. The wastes' radioactivity decreases over time.

Large steel and concrete barrels that contain the garbage are typically properly sealed, although accidents and leaks can still happen. Cancerous growths can result from the severe negative impacts of nuclear waste on life.

Currently, dry casks are used to store all of the nuclear waste that a power plant produces over the course of its lifetime. Since 1987, Yucca Mountain in Nevada has been intended as a permanent disposal location for spent nuclear material.

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To determine whether the protein is an enzyme, the scientist should primarily measure the rate of the chemical reaction. Option(b)

Enzymes are specialized proteins that act as catalysts, facilitating chemical reactions by lowering the activation energy required for the reaction to occur. By comparing the rate of the chemical reaction with and without the protein, the scientist can determine if the presence of the protein enhances the reaction rate. If the reaction proceeds at a significantly higher rate in the presence of the protein, it suggests that the protein is acting as an enzyme, catalyzing the reaction. Enzymes typically accelerate reaction rates by providing an alternative reaction pathway with a lower activation energy, allowing the reaction to occur more readily. While measuring the amount of protein consumed may provide information about the protein's involvement in the reaction, it does not directly determine whether the protein is an enzyme. Similarly, measuring the amount of products bound to the active site or the temperature change of the reaction can provide additional insights, but they alone are not sufficient to confirm enzymatic activity. The most reliable indicator to ascertain whether the protein is an enzyme is to compare the rate of the chemical reaction in the presence and absence of the protein. Option(b)

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It is possible to work on composition stoichiometry in your head because the reaction equations in composition stoichiometry are still simple.

A chemical reaction is a process in which one or more substances are converted into one or different substances and produce new products. The characteristics of a chemical reaction are a change in color or smell, gas or precipitate is formed, and there is a change in energy.

Stoichiometry is the science that studies the quantity of a substance in a chemical reaction. These substances include mass, number of moles, volume, and number of particles. In compositional stoichiometry you will understand the quantitative relationship between the masses or the amount of substance between elements in a compound. Like the amount of Nitrogen and Hydrogen substances that combine to form complex ammonia (NH3). So it allows you to calculate it in your brain because the reaction equation is still simple.

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Answer:

1.5 moles of KMnO4 will be produced from 1.5 moles of MnO2

Explanation:

The balanced equation of this chemical reaction is

2 MnO2 + 4 KOH + O2 → 2 KMnO4 + 2 KOH + H2

2 moles of MnO2 produces 2 moles of   KMnO4

That means 1 moles of KMnO4 will be produced from 1 moles of MnO2

Hence, 1.5 moles of KMnO4 will be produced from 1.5 moles of MnO2

The moles of manganese oxide were used in the reaction is 1.5 moles.

Stoichiometry of any reaction tells about the relative amount of species present before and after the chemical reaction.

Given chemical reaction is:

2MnO₂ + 4KOH + O₂ → 2KMnO₄ + 2KOH + H₂

From the stoichiometry of the reaction, it is clear that same moles of manganese oxide and potassium permanganate is involved in the reaction.

2 moles of KMnO₄ = produce by 2 moles of MnO₂

1.5 moles of KMnO₄ = produce by 2/2×1.5=1.5 moles of MnO₂

Hence, required moles are 1.5 moles.

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The structures show the different possible locations of the double bond and the distribution of electrons. The actual structure of the nitrite ion is a combination or hybrid of these resonance structures, with delocalized electrons.

The polyatomic nitrite ion, NO₂⁻, consists of a central nitrogen atom bonded to two oxygen atoms. To draw the Lewis structure, we need to determine the total number of valence electrons and distribute them among the atoms while satisfying the octet rule.

Count the total number of valence electrons:

Nitrogen (N) contributes 5 valence electrons.

Each oxygen (O) contributes 6 valence electrons.

Total valence electrons: 5 + 2(6) + 1 = 18

Place the atoms and connect them with single bonds:

N-O

Distribute the remaining electrons to complete the octet of each atom:

Place two lone pairs (4 electrons) on each oxygen atom, and distribute the remaining 8 electrons around the nitrogen atom.

Refer image attached below for Lewis structure of the nitride ion.

Check if all atoms have a complete octet:

The oxygen atoms each have 2 lone pairs, resulting in an octet (8 electrons).

The nitrogen atom has 3 lone pairs and a bonding pair, resulting in an expanded octet (10 electrons).

However, in the case of nitrite ion (NO₂⁻), the nitrogen atom can form resonance structures by moving a lone pair from one of the oxygen atoms to form a double bond. This allows for the delocalization of electrons and the stabilization of the molecule.

Therefore, the resonance structures of nitrite ion (NO₂⁻) are:

O=N-O O-N=O

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Answer:

Q = ne

Explanation:

Ler n be the number of electrons transferred and Q be the charge of an ion.

The net charge on the object is then given by :

Q = ne

Where

e is the electronic charge

Hence, the charge of an ion relates to the number of electrons transferred is equal to Q = ne.