What is the voltage across 200 ohm circuit element that draws a current of 4 A​

Answer:

952.2g SO3

Explanation:

Molar mass of C4H8S2 is 120.2363 g/mol

Mol in 750.0g = 750.0/120.2363 = 6.238 mol

1mol C4H8S2 produces 2 mol SO3

6.238 mol will produce 2×6.238 = 12.476 mol SO3

Molar mass SO3 = 32+3×16 = 80.0g/mol

Theoretical yield = 12.476×80.0 = 998.08g

The actual yield is 95.4%

Actual mass-produced = 95.4/100×998.08 = 952.2g SO3 produced

Hope it will help you.

The empirical formula of cyclobutane is C2H4, indicating that it consists of 2 carbon atoms and 4 hydrogen atoms. The empirical formula represents the simplest whole-number ratio of atoms in a compound and provides valuable information about its composition.

To determine the empirical formula of cyclobutane, we need to find the simplest ratio of carbon (C) and hydrogen (H) atoms present in the compound.

Given that cyclobutane consists of 4 carbon atoms and 8 hydrogen atoms, we can divide both numbers by their greatest common divisor to obtain the simplest ratio.

Dividing 4 by 4 gives us 1, and dividing 8 by 4 gives us 2. Therefore, the simplest ratio of carbon to hydrogen atoms in cyclobutane is 1:2.

Thus, the empirical formula of cyclobutane is C2H4, indicating that it contains 2 carbon atoms and 4 hydrogen atoms.

The empirical formula of cyclobutane is C2H4, indicating that it consists of 2 carbon atoms and 4 hydrogen atoms. The empirical formula represents the simplest whole-number ratio of atoms in a compound and provides valuable information about its composition.

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Answer:

I don't know if this helps but here

What did whales look like million years ago?

It lived in or near estuaries about 50 to 48 million years ago. Like Pakicetus, it spent time both in and out of water, but its large feet looked more like flippers than its ancestor's longer legs. ... This five-metre-long animal had proper flippers and tiny hind legs.

Answer: Increasing the concentration of a base will cause the pH level of the solution to increase. Increasing the concentration of an acid will cause the pH level of the solution to decrease.

Explanation:

Answer:

Pasteurized. Never from concentrate. 110 calories per 8 fl oz serving. There are 16 fresh-picked oranges squeezed into each carton of Tropicana - and the juice from those oranges is bursting with nutrition.

Explanation:

Sharks are able to remain in osmotic equilibrium with the external environment because their body fluid has a much lower concentration of sodium chloride than the surrounding seawater. This is possible because sharks store enough urea to match the total solute concentration of the seawater.

Urea is a waste product of nitrogen metabolism that is typically excreted in urine. However, sharks excrete very little urea and instead store it in their body fluid. This helps to offset the difference in solute concentration between the body fluid and the surrounding seawater.

Sharks have evolved this ability to store urea in order to survive in their marine environment. By remaining in osmotic equilibrium, they are able to prevent their body cells from shrinking or bursting. This is essential for their survival since it allows them to maintain their body structure and function.

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The number of atoms of oxygen in the sample of P2O5 is 9.33 * 10²³ atoms.

A mole of the compound P2O5 contains 5 moles of atom of oxygen and 2 moles of P.

Moles of oxygen in the sample = 0.620 * 5/2 = 1.55 moles of oxygen atoms.

The number of oxygen atoms in 1 mole of oxygen atoms is given by the Avogadro number = 6.02 * 10²³

Number of atoms of oxygen in 1.55 moles -= 1.55 * 6.02 * 10²³ = 9.33 * 10²³ atoms.

Therefore, the Avogadro number is important in determining number of atoms in a compound.

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The sentence that contains a compound modifier that should be hyphenated is "She wore a bright yellow sun hat."

The compound modifier in this sentence is "bright yellow" because it is modifying the noun "sun hat." When two or more words are used together to modify a noun, they are called a compound modifier. In this case, "bright" and "yellow" are used together to describe the color of the hat.

According to grammar rules, when a compound modifier comes before a noun, it should be hyphenated. Therefore, the sentence should be written as "She wore a bright-yellow sun hat."

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It can be inferred that due to the relatively slight difference in electronegativity between carbon and hydrogen, and because of its symmetrical tetrahedral shape, methane CH4 is a nonpolar molecule.

Methane is a colorless, odorless gas that occurs naturally in large quantities and is also a byproduct of some human activities. Methane is the most basic hydrocarbon in the paraffin family and one of the most potent greenhouse gases. It has the molecular formula CH4.

Methane is the second most prevalent anthropogenic GHG after CO2, accounting for approximately 20% of world emissions. Compared to carbon dioxide, methane traps heat in the atmosphere 25 times more effectively.

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When alkaline hydrolysis was first invented, people were hired for various roles related to the process and implementation of this technology. Some of the jobs that emerged include Chemical engineers, Technicians and operators, Waste management specialists, Scientists and researchers.

Chemical engineers: These professionals played a crucial role in developing and optimizing the alkaline hydrolysis process. They were responsible for designing the equipment, developing the necessary chemical reactions, and ensuring the efficient operation of the system.

Technicians and operators: Skilled technicians and operators were hired to operate and maintain the alkaline hydrolysis equipment. They were trained to monitor the process parameters, handle the chemicals involved, and ensure the proper functioning of the system.

Waste management specialists: With the introduction of alkaline hydrolysis as a method for disposal of organic waste, specialized professionals in waste management were employed to oversee the proper handling and treatment of the waste materials. They were responsible for implementing safety protocols, managing waste streams, and complying with environmental regulations.

Scientists and researchers: Alkaline hydrolysis required scientific expertise for continuous improvement and innovation. Scientists and researchers were hired to study the process, analyze the results, and explore potential applications in various fields such as biofuel production and chemical synthesis.

Overall, the introduction of alkaline hydrolysis created employment opportunities for professionals in engineering, chemistry, waste management, and research, among others, as this technology gained recognition and adoption.

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Answer:

electrons.

Answer:

The answer is D. Kinetic energy is the energy of motion.

Pls mark brainliest. Hope this helped. :D

Answer:

Volume of one mole of any gas at NTP is

(b) 22.4 litre

Answer:

22.4L

Explanation:

One mole of any gas at STP weighs 22.4L.

STP stands for Standard Temperature and pressure

The Diels-Alder reaction is an electrocyclic process that involves the [4+2]cycloaddition of 2 and 4 electrons from the dienophile and 4 electrons from the conjugated diene (an alkene or alkyne).

A conjugated diene and an alkene undergo a cycloaddition event in the Diels-Alder reaction. A 1,4-addition product is created by this reaction. The reaction of 1,3-butadiene with maleic anhydride serves as an example.

Consequently, [4+2] cycloaddition is the name given to the cyclic addition of diene and dienophile. This shows that a Diels-Alder reaction is best described by the [4+2] cycloaddition.

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Correct metal is aluminum

Martina has a sample of an unknown substance she measures the substance. its mass is 13.5 grams, and its volume is 5 cm³ so here density concept is seen.

Density = mass/volume

So 13.5/5 = 2.7

This density is same as aluminum that's why this metal is aluminum.

Aluminum is a chemical element with the symbol Al and atomic number 13  aluminum is a silvery-white, lightweight metal. It is soft and malleable. aluminum is used in a huge variety of products including cans, foils, kitchen utensils.

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Answer:Aluminum

Explanation:

this is just 60 divided by 15, which is 4

so your answer is 4A :)

Answer:

60 divided by 15? That's 4 if that's what you're asking

In the mechanism to form product 2, the most likely steps include protonation, carbocation rearrangement, and nucleophilic attack.

Mechanism is an organized system of chemical reactions that is the result of experiments and observation. It is a step-by-step process in which a chemical reaction occurs.

Mechanisms show how reactions take place, including the movement of electrons, bonding, and breaking of chemical bonds, and the transfer of atoms between molecules.

In organic chemistry, a mechanism is an essential element in the understanding of chemical reactions.

A mechanism is usually based on a series of elementary reactions. These elementary reactions are then combined into a mechanism. Each reaction step is often associated with a rate constant that expresses how fast the reaction is occurring.

There are different types of reactions, including substitution, addition, elimination, and others.

The mechanism to form product 2:

The following is the proposed mechanism to form product 2.

1. Protonation: The reaction begins with the protonation of the carbonyl group in reactant 1 by sulfuric acid.

2. Carbocation rearrangement: The protonation generates a highly reactive intermediate, which is a carbocation.

This carbocation undergoes a rearrangement to produce a more stable carbocation intermediate.

3. Nucleophilic attack: A nucleophile such as methanol attacks the carbocation intermediate to produce product 2.

This step results in the formation of a new carbon-oxygen bond and the breaking of a carbon-chlorine bond.

The overall reaction is exothermic.

The reaction mechanism can be shown as follows:

Thus, the most likely steps in the mechanism to form product 2 include protonation, carbocation rearrangement, and nucleophilic attack.

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Answer:

Explanation:

Answer: the answer is TRUE

The net ionic equation that occurs when zinc nitrate and lithium phosphate are mixed together in water is 3Zn2+ + 2PO43- ⟶ Zn3(PO4)2(s)

When zinc nitrate and lithium phosphate are combined in water, a precipitate of zinc phosphate is created. It is an insoluble white solid. The compounds that are directly engaged in the chemical reaction are the only ones that are shown in the net ionic equation. Two soluble ionic chemicals are involved in the double replacement reaction.

In an aqueous solution, zinc nitrate, Zn(NO3)2, fully dissociates into zinc cations, Zn2+, and nitrate anions, NO3-.

In an aqueous solution, lithium phosphate (Li3PO4) fully dissociates into lithium cations (Li+) and phosphate anions (PO4)3-.

3Zn2+ + 2PO43- ⟶ Zn3(PO4)2(s)

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When solid surfaces slide over each other, the kind of friction that occurs is called Sliding Friction.

Out of the options listed, "Water vapor, carbon dioxide, and other volatile organic compounds (VOCs)" would not be considered a material stream exiting the roaster.

A material stream is a flow of a physical substance, such as a solid, liquid, or gas, that enters and exits a system or process. In the context of a chemical or process plant, a material stream is a stream of raw materials, intermediate products, or final products that are being produced, transported, or processed.

To perform a mass balance on a coffee roaster, you would consider all the material streams that enter and exit the system. These are gaseous emissions resulting from the roasting process and are not a physical material. The other options, "Spent coffee grounds," "Chaff," and "Roasted coffee beans" are physical materials that can be weighed and measured, and would be considered as material streams exiting the roaster.

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A liquid-to-suction heat exchanger is often used to cool refrigerant vapor in a refrigeration or air conditioning system. It is a type of heat exchanger that transfers heat between a liquid, such as water or a refrigerant, and the suction line of a compressor.

In a refrigeration or air conditioning system, the compressor plays a crucial role in compressing the refrigerant vapor and raising its temperature and pressure. As the refrigerant vapor leaves the compressor, it is typically at a high temperature, which needs to be reduced before it enters the condenser.

The liquid-to-suction heat exchanger, also known as an intercooler or suction line accumulator, is positioned in the suction line between the compressor and the evaporator. Its primary purpose is to cool down the hot refrigerant vapor and remove heat from it before it reaches the condenser.

The heat exchanger consists of coils or tubes through which a cooling liquid, such as chilled water or a secondary refrigerant, flows. As the hot refrigerant vapor passes through the coils, it transfers heat to the cooler liquid, causing the refrigerant vapor to condense into a liquid state.

The cooled and condensed refrigerant liquid then continues its journey to the condenser, where further heat removal occurs, resulting in the release of heat to the external environment. The liquid-to-suction heat exchanger helps improve the overall efficiency of the refrigeration or air conditioning system by reducing the workload on the condenser and improving the system's capacity to remove heat.

Additionally, the liquid-to-suction heat exchanger can also act as a separator to remove any liquid refrigerant or oil that may have entered the suction line. It ensures that only vapor enters the compressor, preventing potential damage caused by liquid entering the compressor.

Overall, the liquid-to-suction heat exchanger plays a vital role in the cooling process of a refrigeration or air conditioning system by reducing the temperature of the refrigerant vapor before it reaches the condenser and helping to separate any liquid refrigerant or oil from entering the compressor.

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Answer:

NH3 and NH4NO3

Explanation:

I took the test and guessed this since I couldn't find it here, it turned out to be correct so I thought I'd share.

The substances that can react with HNO3 to neutralize it  are NH3 and NH4NO3.

The term neutralization has to do with the reaction between an acid and a base to yiled salt and water only.

The substances that can react with HNO3 must be basic substances hence the substances required are NH3 and NH4NO3.

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I think the element is oxygen

Answer:

add sulfur trioxide

Explanation:

To produce benzenesulfonic acid from benzene, fuming sulfuric acid and sulfur trioxide are added. Fuming sulfuric acid, also refered to as oleum, is a concentrated solution of dissolved sulfur trioxide in sulfuric acid.

Answer:

it have been already balanced

2H2 + O2 = 2H2O.

The rate at which the volume is changing, represented as dV/dt, is given by the equation (0.4155 - 0.32V(t)) / 16, where V(t) is the volume, and the values are substituted accordingly.

To find the rate at which the volume is changing, we need to differentiate the given equation with respect to time (t) using the chain rule:

PV = 8.31T

Differentiating both sides with respect to time:

P(dV/dt) + V(dP/dt) = 8.31(dT/dt)

We are given:

dT/dt = 0.05 K/s (rate of temperature change)

(dP/dt) = 0.02 kPa/s (rate of pressure change)

P = 16 kPa (initial pressure)

T = 295 K (initial temperature)

Substituting the given values into the equation, we have:

16(dV/dt) + 16V(0.02) = 8.31(0.05)

Simplifying the equation:

16(dV/dt) + 0.32V = 0.4155

Rearranging the equation to solve for dV/dt:

16(dV/dt) = 0.4155 - 0.32V

(dV/dt) = (0.4155 - 0.32V) / 16

To find the rate at which the volume is changing when T = 295 K, we substitute V = V(t) and T = 295 into the equation:

(dV/dt) = (0.4155 - 0.32V(t)) / 16

Calculating the value of (dV/dt) at the given temperature and rounding to at least 4 decimal places will provide the final answer.

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Answer:

reproduction

Explanation:

its on study island

The true statements about electrolysis are: B) Electrolysis is described by two half-reactions, D) Electrolysis results in commercially valuable products, E) Electrolysis involves the transfer of electrons and G) Oxidation results in the loss of electrons.

Electrolysis is a process that involves the decomposition of a compound using an electric current. It takes place in an electrolytic cell, where an electric current is passed through an electrolyte solution or a molten compound.

One of the fundamental principles of electrolysis is that it is described by two half-reactions, one occurring at the anode and the other at the cathode. These half-reactions involve the transfer of electrons, where oxidation occurs at the anode (loss of electrons) and reduction occurs at the cathode (gain of electrons).

Electrolysis can be used for various industrial processes, making statement C incorrect. It is commonly used for electroplating, metal extraction, and the production of chemicals such as chlorine, hydrogen, and aluminum, which are commercially valuable products.

Oxidation is the process where a species loses electrons, while reduction is the process where a species gains electrons. In the context of electrolysis, statement F is incorrect as reduction involves the gain of electrons. Therefore, the true statements about electrolysis are B, D, E, and G as provided in the answer.

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