In what phase is CO, at 25 atm and -65 °C? solid liquid gas Pressure (atm) liquid O solid 5.11 gas

The electrolysis of FeClx results in the deposition of iron at the cathode, we can infer that Fe is being reduced to form Fe metal.

To determine the most likely charge on Fe in the molten salt FeClx, we need to use Faraday's laws of electrolysis, which relate the amount of substance produced at an electrode during electrolysis to the amount of electrical charge passed through the electrolyte.

The first law of electrolysis states that the amount of substance produced at an electrode is directly proportional to the amount of electrical charge passed through the electrolyte. This can be expressed mathematically as:

m = Q/FM

where m is the mass of the substance produced, Q is the electrical charge passed through the electrolyte, F is Faraday's constant (96485 C/mol), and M is the molar mass of the substance.

In this problem, we know that 0.479 g of iron is deposited at the cathode during electrolysis, and it takes 2356 C of electrical charge to do so. We also know that the molar mass of iron is 55.845 g/mol.

Plugging these values into the equation above, we get:

m = Q/FM

0.479 g = (2356 C) / (96485 C/mol * 55.845 g/mol)

Solving for Q, we get:

Q = (0.479 g) * (96485 C/mol * 55.845 g/mol) / 2356 C

Q = 2.44 x 10^4 C

Since the electrolysis of FeClx results in the deposition of iron at the cathode, we can infer that Fe is being reduced to form Fe metal. The most common ionic form of Fe that can be reduced to Fe metal is Fe2+, which has a charge of +2. Therefore, the most likely charge on Fe in FeClx is +2.

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Answer:

Explanation:

A

Answer:

7500000cm/hr

Explanation:

6km=600000cm

24min=24/60hr=0.4hr

so, according to the question

6k/24km=600000cm÷0.4hr

=1500000cm/hr

therefore in 5 hours we can run:

5×1500000cm/Hr

=7500000cm/hr

A person can run "7,500,000 cm" in 5 hours.

According to the question,

A person can run 6 km in 24 minutes, i.e.,

= \(\frac{6}{24} \ km/min\)

and,

5 hours = 300 minutes

then,

→  A person can run in 5 hours:

= \(\frac{6}{24}\times 300\)

= \(\frac{1800}{24}\)

= \(75 \ km\)

By converting km into cm, we get

= \(7500000 \ cm\)

So the above is the right answer.

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The general form of the solubility product constant (Ksp) expression is: Ksp = [A]^m[B]^n. By simply substituting the ion concentrations of the solution into the Ksp expression we can solve the Qsp.

The solubility quotient (Qsp) is similar to Ksp but represents the ion product in a solution, regardless of whether the solution is at equilibrium or not. If Qsp < Ksp, the solution is unsaturated and more solute can dissolve. If Qsp = Ksp, the solution is at equilibrium and the solution is saturated. If Qsp > Ksp, the solution is supersaturated and the excess solute will precipitate out of solution. To calculate Qsp, simply substitute the ion concentrations of the solution into the Ksp expression and solve for Qsp.

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Answer:

Explanation:

To make it stronger you simply need to add more powdered drink mix or add less water. Concentration is basically the amount of something in something else. In this case, the more powdered mix is in the mixture per liter of water, the higher the concentration. Therefore, increasing the amount of powder mix while maintaining the same amount of water increases the concentration, as well as maintaining the same amount of powder mix but in less water. Anything else would decrease the concentration.

Answer:

A light with a 3000 MHz frequency has an energy of 1.9878 10-24 J.

Explanation:

The answer to the product of the reaction of cyclopentanone with ethylene glycol, p−toluenesulfonic acid, and benzene is attached in the figure.

A chemical process in which substances act mutually on each other and are changed into different substances, or one substance changes into other substances is called a reaction.

Chemical reactions are an integral part of technology, of culture, and indeed of life itself.

The Product obtained of the reaction of cyclopentanone with ethylene glycol, p−toluenesulfonic acid, and benzene is attached in the figure .

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Answer:

4.08

Explanation:

Answer:

deferent elements

Explanation:

because 11n 12 is not the same as well as13

Answer: They are the same elements

Explanation:

They're same elements because the number of electrons are same (number of protons=electrons).

The number neutrons don't matter.

If any two atoms have the same number of Electrons and protons and has different number of neutron's they still are the same element.

Answer:

12,375 cm³

Explanation:

v=l×w×h

Since there are 3 books the equation would then be

v=3(l×w×h)

v=3(25×15×11)

v=3(4,125)

v=12,375 cm³

Answer:

The name of this molecule structure is 1-Butyne

The name of the given molecule according to IUPAC is 1-Butyne. Thus, option C is correct.

The IUPAC nomenclature is given as the standard naming technique that is used to name a chemical compound. It is named with the following main rules.

The triple bond compound is an alkyne with the suffix -yne. The development of the name to the given structure is therefore given by counting the number of carbon atoms, and the location of the triple bond.

There are 4 carbon atoms in the structure with the triple bond at carbon 1, therefore the name will be 1-Butyne. Hence, option C is correct.

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Carbon dioxide and particulates are emitted by volcanoes. Particulates form stratospheric aerosols that reflect sunlight The impact of atmospheric carbon dioxide and stratospheric aerosols can be briefly described below.

Carbon dioxide (CO₂): Carbon dioxide is a greenhouse gas that contributes to the greenhouse effect and global warming. It is released into the atmosphere through various human activities, such as the burning of fossil fuels and deforestation. The increasing concentration of CO₂ in the atmosphere is a significant driver of climate change.

Stratospheric aerosols: Stratospheric aerosols, formed by the release of particulates from volcanic eruptions or human activities, can have a cooling effect on the Earth's climate. These aerosols reflect sunlight back into space, reducing the amount of solar radiation that reaches the Earth's surface. As a result, they can temporarily offset some of the warming caused by greenhouse gases like CO2.

It's important to note that while stratospheric aerosols can have a cooling effect, they are relatively short-lived in the atmosphere compared to CO₂. Carbon dioxide, on the other hand, has a long residence time and accumulates over time, leading to long-term warming.

Therefore, the overall impact of increasing atmospheric CO₂ concentrations outweighs the cooling effect of stratospheric aerosols.

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The molar concentration of the HCl solution is 1.2 M.

The balanced chemical equation for the reaction between HCl and NaOH is:

HCl (aq) + NaOH (aq) → NaCl (aq) + H₂O (l)

From the equation, we can see that one mole of HCl reacts with one mole of NaOH.

Given that 15.0 mL of 0.40 M NaOH is required to neutralize 5.0 mL of HCl, we can use the following equation to calculate the concentration of HCl:

moles of NaOH = concentration of NaOH x volume of NaOH (in liters)

moles of HCl = moles of NaOH (since they react in a 1:1 ratio)

concentration of HCl = moles of HCl / volume of HCl (in liters)

Converting the volumes to liters:

Volume of NaOH = 15.0 mL = 0.015 L

Volume of HCl = 5.0 mL = 0.005 L

Substituting the values:

moles of NaOH = 0.40 M x 0.015 L = 0.006 moles

moles of HCl = 0.006 moles (since they react in a 1:1 ratio)

concentration of HCl = 0.006 moles / 0.005 L = 1.2 M

As a result, the HCl solution has a molar concentration of 1.2 M.

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Answer :  The mass of ice that needs to melt to absorb 361 kJ of energy is 60.0 g (to three significant figures).

The enthalpy of fusion, ΔHfus is 6.02 kJ/mol, where ΔHfus is the energy required to convert one mole of solid to liquid. We are supposed to find the amount of ice melted to absorb 361 kJ of energy. The equation to be used here is: Q = m × ΔHfus

The amount of energy required to melt m grams of ice isQ = m × ΔHfus. The given value of ΔHfus is 6.02 kJ/mol, which should be converted into kJ/g for calculation. Q = m × ΔHfus/1000 g = 0.00602 kJ/g× m = 361 kJm = 361 kJ / 0.00602 kJ/gm = 59933.888 g or 60.0 g (3 significant figures).

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Ni²⁺ is the only ion on the list that can exist as both a high-spin and a low-spin octahedral complex. The correct option is B.

An electrostatic model called the crystal field theory (CFT) assumes that the metal-ligand connection is ionic and results only from electrostatic interactions between the metal ion and the ligand. When dealing with anions, ligands are viewed as point charges, and when dealing with neutral molecules, as dipoles.

The crystal field splitting theory predicts that some transition metal ions can exist as either high-spin or low-spin octahedral complexes, depending on the magnitude of the crystal field splitting parameter (Δ) relative to the pairing energy (P).

Of the ions listed, the only one that could exist as either a high-spin or a low-spin octahedral complex is Ni²⁺ (B).

Mn²⁺ (A) is a d⁵ ion and will always form a high-spin octahedral complex due to its large number of unpaired electrons.

Sc³⁺ (C) is a d⁰ ion and does not form octahedral complexes with ligands.

Cu²⁺ (D) is a d⁹ ion and typically forms a low-spin octahedral complex due to the stability of the half-filled d⁹ configuration.

Zn²⁺ (E) is a d¹⁰ ion and does not have any unpaired electrons to undergo spin pairing, so it will always form a low-spin octahedral complex.

Therefore, the correct answer is B) Ni²⁺.

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Answer:

Explanation:

True

Answer: A FILTERING

Explanation:

WHEN YOU FILTER YOU SEPARATE (sorry for caps) btw can you check out my recent question plz

The complete sentences are:

Page 3:

The effect of energy in phase transitions of matter is that it is required to break the intermolecular forces that hold the particles of a substance together. When energy is added to a substance, the particles move faster and the intermolecular forces are broken. This can cause the substance to change phase.

The interactive demonstration on the sample of water shows that energy is required to melt ice and boil water. When the ice is heated, the particles start to move faster and the ice melts. The temperature of the water stays constant at 0°C until all of the ice has melted. This is because the energy is being used to break the intermolecular forces in the ice. Once all of the ice has melted, the temperature of the water starts to rise again. When the water is boiled, the particles move so fast that they escape from the liquid state and become a gas. The temperature of the water stays constant at 100°C until all of the water has boiled. This is because the energy is being used to break the intermolecular forces in the water. Once all of the water has boiled, the temperature of the steam starts to rise again.

The complete sentences:

Page 4:

Heating curves show the temperature of a substance as it is heated. The curve has a horizontal line at the melting and boiling points, which indicates that the temperature does not change during these phase changes.

Cooling curves show the temperature of a substance as it is cooled. The curve has a horizontal line at the melting and boiling points, which indicates that the temperature does not change during these phase changes.

Both curves show that the temperature of a substance increases as it is heated and decreases as it is cooled.

A heating curve is more choppy than a cooling curve because there are more phase changes during heating than during cooling.

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The statement that describes what can be concluded from the above data is as follows: a chemical reaction occurred because calcium oxide has different properties than calcium and diatomic oxygen (option C).

A chemical reaction is a process typically involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.

This means that a chemical reaction yields a new substance (products) by breaking the bonds initially present in the reactants.

According to this question, calcium (Ca) and diatomic oxygen (O₂) combine to form calcium oxide (CaO). As observed in the data given, the reactants and products have distinct chemical and physical properties.

Therefore, it can be said that a chemical reaction gas occured because of the difference in properties.

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Answer:

B

Explanation:

this is called peer review and your results will be stronger

Answer:

Explanation:

Decomposition reaction, also known as analysis or dissociation, is a type of chemical reaction in which a compound breaks down into simpler substances or elements. In this reaction, a single reactant undergoes a chemical change and produces two or more products.

The decomposition reaction can be represented by the general equation:

AB → A + B

Where AB is the reactant, and A and B are the products. The reactant AB is usually a compound, and it breaks down into its constituent elements or simpler compounds.

There are different types of decomposition reactions, including:

Thermal decomposition: It occurs when a compound is heated, resulting in its decomposition into simpler substances. For example, the thermal decomposition of calcium carbonate (CaCO3) produces calcium oxide (CaO) and carbon dioxide (CO2):

CaCO3 → CaO + CO2

Electrolytic decomposition: It takes place when an electric current is passed through an electrolyte, causing it to break down into its component ions. For instance, the electrolysis of water (H2O) leads to the decomposition into hydrogen gas (H2) and oxygen gas (O2):

2H2O → 2H2 + O2

Photochemical decomposition: It occurs when a compound undergoes decomposition due to exposure to light energy. Chlorine gas (Cl2) can decompose into chlorine atoms (Cl) under the influence of light:

Cl2 → 2Cl

These are just a few examples of decomposition reactions. They are important in various chemical processes and are used in industries, laboratory experiments, and natural phenomena. By understanding and controlling decomposition reactions, scientists can gain insights into the behavior of different compounds and develop practical applications in fields such as chemistry, materials science, and environmental science.

Answer:

Explanation:

reaction in which a compound breaks down into simpler substances or elements

Answer:

Explanation:

The combined gas law expresses the relationship between the pressure, volume, and absolute temperature of a fixed amount of gas. 

The variable assumed to be constant in the combined gas law is b) number of moles.

The combined gas law is a combination of Boyle's law, Charles's law, and Gay-Lussac's law, which describe the relationship between the pressure, volume, and temperature of a gas, respectively. When the amount of gas (number of moles) is kept constant, the combined gas law can be written as P1V1/T1 = P2V2/T2. This equation allows you to solve for an unknown variable, given the initial and final states of the gas.

Therefore, the answer to the multiple choice question is b) number of moles.

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Explanation:

Concentrated solution Dilute solution

A concentrated solution is a liquid with a high solute concentration. A dilute solution is a liquid having a lower solute content.

As more solute is added to a solution, the solution becomes more concentrated. The dissolved salt in drinking water from a well is a dilute solution.

A concentrated solution contains a substantial volume of water. The concentration of a solution can be further reduced and diluted by adding more water.

The general equation for a double-displacement reaction is

A + BX ---> AX + B or AX + BY ---> AY + BX

Here, A and B represent two different chemical species (such as ions or molecules), and X and Y represent their respective chemical partners.

The positively charged species (A and B) exchange partners (X and Y) in a double displacement process to create new compounds (AX and BY). Because the positively charged species "switch" partners, this kind of reaction is often referred to as a "swap" reaction.

Double-displacement reactions include the following examples:

1. The transformation of silver nitrate (AgNO3) into sodium nitrate (NaNO3) by the reaction of sodium chloride (NaCl) and AgNO3:-

NaCl(aq) + AgNO3(aq) AgCl(s) + NaNO3(aq)

2. The transformation of barium chloride (BaCl2) into barium sulfate (BaSO4) and sodium chloride (NaCl) via the following equation:-

BaCl2(aq) + Na2SO4(aq) BaSO4(s) + 2NaCl(aq)

Depending on the chemical makeup of the reactants, not all double-displacement reactions are metathesis reactions, it is crucial to keep in mind.

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Answer:

plastic

Explanation:

It is the charterer's duty to hire a ship for a certain period of time to transport cargo or passengers.

The charterer's job is to hire a ship for a set amount of time to transport goods or people. They are in charge of negotiating the charter conditions with the vessel owner or broker, setting up the required licences and paperwork, and ensuring the timely and safe delivery of cargo or passengers. Broker: The broker's job is to make it easier for the charterer and the vessel owner to come to an agreement. They serve as middlemen, using their connections and market expertise to identify suitable vessels and agree upon conditions of charter that are acceptable to both sides. A appropriate vessel must be provided by the vessel owner in order to satisfy the charterer's needs. They keep the vessel seaworthy, adhere to pertinent laws, and guarantee effective operations throughout the charter.

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Explanation:

As you go farther from the nucleus, electrons at higher levels have more energy, and their energy increases by a fixed, discrete amount. Electrons can jump from a lower to the next higher energy level if they absorb this amount of energy.

Answer:

motion

Explanation:

i just know things

Answer:

There will be 2 nitrogen and 2 oxygen atoms in the product.

Explanation:

In a chemical reaction, atoms are neither created or destroyed, which means if there are 2 nitrogen atoms in the reactants, there will be 2 nitrogen atoms in the products. Similarly, if there are 2 oxygen atoms in the reactants, there will be 2 oxygen atoms in the products.

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