In the reaction for the Synthesis of Luminol, which component of the blood mimic solution is similar to real blood's ability react with oxygen? A - Potassium ferricyanide B - Water C - Hydrogen peroxide D - Other

Cis- and trans-2-butene can both be hydrogenated to butane; thus their energies can be compared. the trans isomer releases less energy upon hydrogenation therefore cis-2-butene higher in energy.

The process of addition of hydrogen atom to another compound in the presence of catalyst such as nickel, cobalt etc. is termed as hydrogenation process.

As in trans- isomer, similar atoms or group of atoms are on opposite side. Due to which there is less repulsion between the atoms which results in more stability of trans isomer. On the other hand in cis- isomer, similar atoms or group of atoms are on same side, due to which there is more repulsion between the atoms which results in less stability of cis-isomer.

Due to more stability of trans- isomer less energy is released to add hydrogen to the trans butene as compared to cis butene for the formation of butane.

Thus we concluded that the trans isomer releases less energy than cis isomer in hydrogenation process.

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Answer: 1.44 x 10^25 atoms in 128 grams of CH3OH.

Explanation: To obtain number of atoms, multiply number of moles by the number of molecules per mole.

Explanation:

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Answer:The yellow crystalline substance is a compound. The green gas and red powder are elements.

Explanation

Elements and compounds are considered pure substances. Elements are made up of a single type of atom while compounds are composed of two or more elements. One example of a compound is the table salt (NaCl) which is made up of one atom of sodium and one atom of chlorine. The elements in the compound are combined chemically and there is a definite ratio of these elements. They are formed by a chemical reaction where chemical bonds are formed. Furthermore, the components of the compound can be separated through several means such as extraction, distillation, etc. The process of heating the yellow crystalline substance resulted in the separation of its components namely, the green gas and red powder.

Answer:

It A(Ba3P2)

Explanation:

I took the test

Answer:

It A(Ba3P2)

Explanation:

Answer:

In 2C2H6, The C= 4 and H= 12

The model of the atom is the electron.

Experiments with JJ Thomson's cathode ray tube showed that all atoms contain small negatively charged subatomic particles or electrons. Thomson proposed a plum pudding model of an atom in which negatively charged electrons are embedded in a positively charged soup. In 1897, Thomson discovered the electron and proposed a structural model of the atom.

His research also led to the invention of the mass spectrometer. According to Thomson's atomic model, atoms consist of positively charged spheres injected with negatively charged electrons. Since electrons and protons are the same sizes the atom is electrically neutral. Thomson discovered the electron through experiments with Crookes or cathode ray tubes. He showed that cathode rays are negatively charged. In addition, he also studied positively charged particles in neon gas.

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(1) Fewer microorganisms will grow on the surface of the lake if iron compounds are added to a lake with an overabundance of nutrients. Hence, option 1 is correct.

(2) Fracking means using water and chemicals at high pressure to open up fissures to access oil and gas resources. Hence, option 2 is correct.

An organism that can be seen only through a microscope.

Iron is a natural capping agent which can enhance sediment P binding capacity, thus reducing P availability and shifting a lake from an algal to a macrophyte dominated state. Iron could, however, also impose toxic effects on the biota.

Fracking is the injection of a fluid at high pressure into an underground rock formation to open fissures and allow trapped gas or crude oil to flow through a pipe to a wellhead at the surface.

This technique is used in natural gas and petroleum production.

1) Fewer microorganisms will grow on the surface of the lake if iron compounds are added to a lake with an overabundance of nutrients. Hence, option 1 is correct.

(2) Fracking means using water and chemicals at high pressure to open up fissures to access oil and gas resources. Hence, option 2 is correct

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Answer:

E = hf

E = hc/lamda

where E-energy,

h-planck's constant (6.62 x 10^-34 Js)

f- frequency ( f = c/lamda)

c-velocity of light ( 3 x 10^8 m/s)

lamda- wavelength

you can this formula to solve all the 4 questions.

C, O, and F have less exothermic electron affinity than Si, S, and Cl respectively is due to their atomic structure and the stability of their outermost electron shells.

Carbon (C), Oxygen (O), and Fluorine (F) are all located in the second period of the periodic table, which means they have two electron shells. Silicon (Si), Sulfur (S), and Chlorine (Cl) are all located in the third period, which means they have three electron shells. The electron affinity of an atom is the amount of energy released when an electron is added to a neutral atom to form a negative ion. Atoms with a higher electron affinity release more energy when an electron is added, making the process more exothermic.

In the case of C, O, and F, their outermost electron shells are already relatively stable with 4, 6, and 7 electrons respectively. Adding an additional electron would disrupt this stability and require more energy. In contrast, Si, S, and Cl have a less stable outermost electron shell with only 4, 6, and 7 electrons respectively in their third shell. Adding an additional electron to these atoms would increase their stability and release more energy, resulting in a more exothermic electron affinity. Therefore, C, O, and F have less exothermic electron affinity than Si, S, and Cl respectively due to the stability of their outermost electron shells.

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Answer:

Magnesium Flouride is a ionic compound and thus has a giant lattice structure. Its ions are held together in this lattice by strong electrostatic forces of attraction. A large amount of energy is needed to overcome the strong electrostatic forces of attraction between the Mg2+ ions and the F- ions to separate the ions. Hence Magnesium fluoride has a very high melting point.

Answer:

So I searched it up and got, "They're created by the use of metal salts. ... Metal salts commonly used in firework displays include: strontium carbonate (red fireworks), calcium chloride (orange fireworks), sodium nitrate (yellow fireworks), barium chloride (green fireworks) and copper chloride (blue fireworks)."

WHY WAS I THINKING OF PAINT-

Explanation:

Have a great day though:)

Answer:

we know that it was the vinegar and baking soda because gas had been created, the gas was held within the bubbles. the gas that was created was called Carbon Dioxide or CO2

Answer:on k-12 it raviotation

Explanation:

The molality of a 5.36 m aqueous solution of ethylene glycol ((CH₂OH)₂, will be 0.065 mol/kg.

molality = (moles of solute) / (mass of solvent in grams)

Since the density of the solution is given, we can calculate the mass of the solution and then the mass of the solvent.

mass of solution = volume × density = 1 L × 1.0405 g/mL = 1.0405 g

mass of solute = mass of solution - mass of solvent = 1.0405 g - 1 L × (density of solvent)

Since water has a density of approximately 1 g/mL, the mass of solvent is 1 L × 1 g/mL = 1 g.

mass of solute = 1.0405 g - 1 g = 0.0405 g

moles of solute = mass of solute / molar mass of solute = 0.0405 g / 62.068 g/mol = 0.00065 moles

molality = (moles of solute) / (mass of solvent in grams) = 0.00065 mol / 1 g = 0.065 mol/kg.

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One approach to stop wind erosion is for construction workers to moisten the ground before driving on it or digging.

Wind has the power to transfer little sand grains and other debris kilometres from their original site. It may also remove layers of sediment and dirt off the top of a landscape. By scraping against the surface or shattering into smaller pieces as they travel, the materials carried by the wind degrade the soil while they are deposited in new areas.

Impacts. Economic, health, and environmental costs associated with wind erosion include soil loss, high cleaning costs, absenteeism, transportation delays, sand-blasted crops, and retail losses.

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Answer:

To determine the age of the ancient cloth, we can use the concept of radioactive decay and the half-life of Carbon-14.

Carbon-14 is a radioactive isotope of carbon, which decays over time into nitrogen-14 through beta decay. The half-life of Carbon-14 is 5614 years, which means that after 5614 years, half of the original amount of Carbon-14 in a sample will have decayed.

In this case, the cloth contains only ¼ of its original Carbon-14. This means that three half-lives have passed since the cloth was first created, as each half-life reduces the amount of Carbon-14 by half.

To determine the age of the cloth, we can use the following formula:

N = N0(1/2)^t/T

where N is the current amount of Carbon-14 in the cloth, N0 is the original amount of Carbon-14 in the cloth, t is the time that has passed, and T is the half-life of Carbon-14.

We know that N = ¼ N0, and T = 5614 years. Plugging these values into the formula, we get:

¼ N0 = N0(1/2)^(3/T)

Solving for t, we get:

t = (3/T) * log(2)

Substituting in T = 5614 years, we get:

t = (3/5614) * log(2) ≈ 1,684 years

Therefore, the cloth is approximately 1,684 years old.

In summary, we can use the concept of radioactive decay and the half-life of Carbon-14 to determine the age of the ancient cloth. By knowing the current amount of Carbon-14 in the cloth, we can calculate the time that has passed since it was first created using a simple formula. In this case, the cloth is approximately 1,684 years old.

The location of resources a concern, because some areas have more access to resources than others, Human populations are sometimes concentrated in areas that are lacking resources, and areas with fewer resources may need to buy resources from other areas. Therefore, option D is correct.

Natural resources are substances obtained from the planet that are utilised to sustain life and provide for human needs. A natural resource is something that comes from nature that humans use.

Natural resources include things like stone, sand, metals, oil, coal, and natural gas. Air, sunshine, soil, and water are examples of other natural resources.

Resources are more easily accessible in some places than others. There are periods when human populations are concentrated in places with few resources. Localities with limited resources could be forced to import resources.

Thus, option D is correct.

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The last third-party candidate to win one or more states was George Wallace of the American Independent Party in 1968.

Who was George Wallace?

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Answer:

i think

KCI

is the answer

Answer:

It would tend to gain one electron and form a -1 ion. Aluminum is in the fifth column and therefore has 5 electrons in its outermost shell. It would tend to lose three electrons and form a +3 ion.

Explanation:

If helpful, please mark as brainliest! =)

Aluminum (Al) is an element with atomic number 13, which means it has 13 protons and 13 electrons in its neutral state.

When forming an ion, aluminum tends to lose three electrons. This is because aluminum belongs to Group 13 in the periodic table, also known as the "boron group" or "Group IIIA."

Elements in this group have three valence electrons in their outermost energy level. To achieve a stable electron configuration, aluminum can lose these three valence electrons, leaving behind a complete inner electron shell and forming a 3+ cation.

So, when aluminum forms an ion, it loses three electrons to become Al3+.

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The combustion of butane in oxygen (air) is represented in the  balanced chemical equation as 2 C₄H₁₀ + 13 O₂\(\rightarrow\) 8 CO₂ + 10 H₂O.

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

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Your question is incomplete but most probably your full question was:The combustion of butane in oxygen (air) is represented in the equation 2 C₄H₁₀ + 13 O₂\(\rightarrow\)

Answer: Physical properties

Explanation: Can be measured without changing a substance's chemical identity.

The total internal energy in the container is 329.77 Btu and the enthalpy in the container is 385.14 Btu.

Using the steam tables, we can determine the specific volume of water at the given pressure and temperature. The specific volume of water is 0.01658 \(ft^3/lbm\).

The mass of water in the container is 0.92 lbm, so the total volume of the water is:

V = m/v = 0.92 lbm / 0.01658 \(ft^3/lbm\)  = \(55.539 ft^3\)

Assuming the water is at saturation, we can find the total internal energy and enthalpy by using the values in the steam tables for saturated water at 100 psia.

From the steam tables, the total internal energy of saturated water at 100 psia is 358.05 Btu/lbm, so the total internal energy in the container is:

U = m * u = 0.92 lbm * 358.05 Btu/lbm = 329.77 Btu

From the steam tables, the enthalpy of saturated water at 100 psia is 419.02 Btu/lbm, so the enthalpy in the container is:

H = m * h = 0.92 lbm * 419.02 Btu/lbm = 385.14 Btu

Therefore, the total internal energy in the container is 329.77 Btu and the enthalpy in the container is 385.14 Btu.

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Answer:

i also need like your question

Explanation:

Which statement is correct about the rocks at this location?

A. All three types of rock will become metamorphic if they stay at the surface of Earth.

B. If this location is buried deep underground, only the metamorphic rock will melt because it has already been heated before.

C. The metamorphic rock and sedimentary rock were already at this location and magma flowed into the other rocks.

D. The igneous rock will become metamorphic rock after the rock in the cliff side turns into sediment.

The empirical formula of the unknown compound is C2H5O. This is determined by dividing the number of moles of each element in the products by the lowest number of moles obtained.

To determine the empirical formula of the unknown compound, we need to find the ratio of carbon, hydrogen, and oxygen atoms in the compound.

First, we calculate the number of moles of CO2 and H2O produced in the combustion reaction. The molar mass of CO2 is 44 g/mol, and the molar mass of H2O is 18 g/mol.

Number of moles of CO2 = 16.5 g / 44 g/mol ≈ 0.375 mol

Number of moles of H2O = 4.50 g / 18 g/mol = 0.25 mol

Next, we determine the number of moles of carbon, hydrogen, and oxygen in the unknown compound. In the combustion reaction, each CO2 molecule contains one carbon atom and each H2O molecule contains two hydrogen atoms.

Number of moles of carbon = 0.375 mol (from CO2)

Number of moles of hydrogen = 0.25 mol × 2 = 0.5 mol (from H2O)

Number of moles of oxygen = 0.375 mol × 2 = 0.75 mol (from CO2)

Now we need to find the simplest whole-number ratio of carbon, hydrogen, and oxygen atoms. To do this, we divide each number of moles by the smallest number of moles, which is 0.25 mol.

Number of moles of carbon in the simplest ratio = 0.375 mol / 0.25 mol = 1.5 ≈ 2

Number of moles of hydrogen in the simplest ratio = 0.5 mol / 0.25 mol = 2

Number of moles of oxygen in the simplest ratio = 0.75 mol / 0.25 mol = 3

Therefore, the empirical formula of the unknown compound is C2H5O, which represents the simplest whole-number ratio of carbon, hydrogen, and oxygen atoms in the compound.

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The changes in different properties such as concentration etc will change if the pH experiences a change.

This is referred to the power of hydrogen and is a measure of the degree of acidity or alkalinity of a substance.

When pH changes, the concentration as well as other properties in this context.

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According to the chemical formula, there are 2,2,3 and 12 atoms of calcium,aluminium ,silicon and aluminium respectively in grossular.

Chemical  formula is a way of representing the number of atoms present in a compound or molecule.It is written with the help of symbols  of elements. It also makes use of brackets and subscripts.

Subscripts are used to denote number of atoms of each element and brackets indicate presence of group of atoms. Chemical formula does not contain words. Chemical formula in the simplest form  is called empirical formula.

It is not the same as structural formula and does not have any information regarding structure.It does not provide any information regarding structure of molecule as obtained in structural formula.

There are four types of chemical formula:

1)empirical formula

2) structural formula

3)condensed formula

4)molecular formula

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Answer:

313.2 g of \({K_{2} }S O_{4}\)  must be added to 1.20 liters of water to produce a 1.50 molar solution.

Explanation:

What is molarity?

According to the given question,

Solution :

∴ Number of moles of solute, here, \({K_{2} }S O_{4}\)

= molarity x volume of the solution

= 1.20 x  1.50 = 1.8

∴ Mass of 1.8 moles of \({K_{2} }S O_{4}\) = 1.8 x molar mass of   \({K_{2} }S O_{4}\)  

Now the molar mass of \(K_{2} SO_{4}\)

= (Gram atomic mass of K x 2) + (Gram atomic mass of S) + (Gram atomic mass of O x 4)

= (39x2) + 32 + (16 x 4) g

= 174 g.

∴ Mass of 1.5 moles of \({K_{2} }S O_{4}\)

= 1.8 x molar mass of   \({K_{2} }S O_{4}\)  

= 1.8 x 174 g

= 313.2 g.

Thus, 313.2 g of \({K_{2} }S O_{4}\)  must be added to 1.20 liters of water to produce a 1.50 M solution.

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The path of exhaled oxygen-poor and carbon dioxide-rich air leaving the body begins in the body's cells, where oxygen is used for cellular respiration, and carbon dioxide is produced as a waste product.

When we breathe in, our body takes in oxygen-rich air through the mouth or nose. This air then travels through the trachea, or windpipe, and into the lungs. In the lungs, the oxygen is transferred to the bloodstream while carbon dioxide is released from the blood and into the air sacs of the lungs.

Next, the oxygen-rich blood is pumped by the heart to different parts of the body, where it is used for energy production. As the body uses oxygen, it produces carbon dioxide as a waste product.

This carbon dioxide is carried by the bloodstream back to the lungs, where it is released into the air sacs. Finally, when we exhale, the air travels back up the trachea and out of the mouth or nose, carrying the carbon dioxide-rich and oxygen-poor air out of the body.

This process of inhaling oxygen and exhaling carbon dioxide is known as respiration and is essential for the proper functioning of the body's cells and organs.

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