Sulfur dioxide is produced from zinc sulfide by means of the following reaction: zns+o2=zno+so2.


if the typical yield is 86. 78%, how much so2 should be expected if 4897g of zns are used?

Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{Density} \)

From the question

mass of Iron = 1500 g

Density = 5.5 g/mL

Substitute the values into the above formula and solve

That's

\(volume = \frac{1500}{5.5} \\ = 272.727272...\)

We have the final answer as

Hope this helps you

Answer: Mass is the amount of matter in a substance. Volume is the amount of space matter takes up. Matter has both physical and chemical properties.

Explanation:Y w

Answer:

gravity is the correct answer to the given question .

Explanation:

The gravity is the gravitational force due to the gravitational the solar system as well as the other body of dimensional object to its center point. The gravitational force maintains all the planetary systems in the orbit over the sun.We can called gravitational force as the universal force .

Answer:

the answer is b gravity :)

Explanation:

u got this :)

The half-life of 44ti can be calculated using the given information. The rate of decay is \(4.3*10^8\) disintegrations, and the initial sample size is 1.0 ng.

For finding the half-life, we can use the formula:

half-life = (ln(2)) / (decay constant)

First, we need to find the decay constant using the given rate of decay:

decay constant = rate of decay / initial sample size

decay constant = (4.3*10^8 disintegrations) / (1.0 ng)

Now, we can substitute the decay constant into the half-life formula:

half-life = ln(2) / (decay constant)

half-life = ln(2) / [(\(4.3*10^8\)  disintegrations) / (1.0 ng)]

So, the half-life of 44ti is ln(2) / [(\(4.3*10^8\)  disintegrations) / (1.0 ng)].

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Answer:

6^3 I believe.

Explanation:

If it's wrong it may be 6^2 because you should square it, but I think it's 6^3

The exact amount of phosphorous in plant food depends on the specific product, as well as the intended use and type of plant it is formulated for.

Plant food typically contains varying amounts of phosphorous, one of the three primary macronutrients essential for plant growth and health along with nitrogen and potassium.

For example, standard all-purpose plant food will often have a balanced ratio of the three macronutrients, including around 10% phosphorous. However, specific plant food products may have higher or lower amounts of phosphorous, with some formulated for high-phosphorus crops like tomatoes or flowering plants.

It's important to note that too much phosphorous can lead to imbalanced soil nutrient levels, potentially inhibiting the uptake of other essential micronutrients like iron and zinc. Therefore, it's important to follow label instructions and not over-fertilize with high-phosphorus plant food.

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The exponential notation of the number 480 to one significant figure is 4 x 10².  two significant figures is 4.8 x 10². three significant figures is 4.80 x 10², and in four significant figures is 4.800 x 10².

The exponential notation of the number 480 to two significant figures is 4.8 x 10².The exponential notation of the number 480 to three significant figures is 4.80 x 10².The exponential notation of the number 480 to four significant figures is 4.800 x 10².

Significant figures are the digits that are necessary to express a measurement with the level of accuracy that is being claimed for it. They provide an indication of the measurement's precision and accuracy. In a decimal number, significant figures include all the digits that are known, plus one final digit that is uncertain or an approximation.

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Dissolve a sugar cube in water and you still have sucrose, not oxygen, carbon, and hydrogen. This does not mean that sucrose or water cannot be broken down into simpler substances.

But methods must involve a chemical change.

The change in which the molecular composition is completely altered and a new product is formed is called a chemical change.

Chemical changes create a new product.

The changes in chemical change are irreversible and permanent.

A chemical change occurs when the substance's composition is changed. When bonds are broken and new ones are formed a chemical change occurs.

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This D-phenylalanine or L-phenylalanine - As the amino acid group is projected towards the left side so this is L- phenylalanine.

L-amino acids refer to stereoisomers of certain amino acids, with the amine group on the left  projection, and D-amino acids refer to stereoisomers of other amino acids, with the amine group on the right in projection.

L-phenylalanine is an essential amino acid that is used by the body to make proteins, neurotransmitters, and other important molecules. It is classified as an "essential" amino acid because it cannot be produced by the body and must be obtained through the diet. L-phenylalanine is found naturally in many foods, including meat, fish, eggs, and dairy products, as well as in certain vegetables and grains.

In the body, L-phenylalanine is converted to a number of important molecules, including tyrosine, dopamine, norepinephrine, and epinephrine. These molecules are involved in a wide range of physiological processes, including the regulation of mood, appetite, and sleep, as well as the control of pain and inflammation.

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Answer:

Sulfur Dioxide

Explanation:

Sulfur dioxide is the chemical that, when released by factories using fossil fuels, combines with the atmosphere and can produce acid raid.

Adding sodium sulfate to the heating reaction mixture in the synthesis of n-butylacetate to remove water and shift the equilibrium towards ester formation would not be successful.

Sodium sulfate is commonly used as a drying agent to remove water from reaction mixtures. However, in the case of the synthesis of n-butylacetate, the addition of sodium sulfate to remove water would not effectively shift the equilibrium towards ester formation.

This is because the formation of water is an inherent part of the esterification reaction, and removing water from the reaction mixture would not have a significant impact on the equilibrium position. Azeotropic distillation is a more effective method to separate the formed ester from water, as it allows for the removal of water without affecting the reaction equilibrium.

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To calculate the percent error, we need to compare the measured value (315K) with the accepted or actual value (353K).

The formula for percent error is:

Percent Error = ((|Measured Value - Actual Value|) / Actual Value) * 100

Substituting the given values into the formula, we get:

Percent Error = ((|315K - 353K|) / 353K) * 100

Simplifying further:

Percent Error = (| -38K| / 353K) * 100

Percent Error = (38K / 353K) * 100

Percent Error ≈ 10.77%

Therefore, the percent error in Madalyn's measurement of the boiling point of ethyl alcohol is approximately 10.77%. This indicates that her measured value is around 10.77% lower than the accepted value. It is important to note that positive percent error would indicate an overestimation, while negative percent error would indicate an underestimation.

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Answer:

A physical change is when something changes on the inside, but it does not change what it is made of.

When a precipitation reaction occurs the resulting mixture of liquid solution and solid precipitate would be considered a heterogeneous Mixture.

Chemical reactions known as precipitation reactions take place in aqueous solutions to produce precipitates. Moreover, chemical changes that occur inside the substances are a part of chemical processes.

Moreover, chemical reactions take place between two or even more chemical substances, known as reactants. As a result, the reactants might be solid, gaseous, or liquid in nature. When a precipitation reaction occurs the resulting mixture of liquid solution and solid precipitate would be considered a heterogeneous Mixture.

Therefore, when a precipitation reaction occurs the resulting mixture of liquid solution and solid precipitate would be considered a heterogeneous Mixture.

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Answer:

Li has smallest atomic radius.

Explanation:

The given elements are present in group one. Among these Li has smallest radius.

Atomic radii trend along group:

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

As the size of atom increases the ionization energy from top to bottom also  decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.

Li₃

Na₁₁

K₁₉

Rb₃₇

Thus, lithium has smallest atomic radius while rubidium has largest atomic radius.

Answer:

I believe that the answer is Rb. Not 100% sure though.

Answer:

those small sediments begin to precipitate, condense on the ground and finally settle.

Explanation:

Sedimentation is a natural process, which occurs spontaneously in nature and promotes the formation of sedimentary rocks.

Answer:

Simple distillation is the method used to separate substances in mixtures with significantly different boiling points, while fractional distillation is used for mixtures containing chemicals with boiling points close to each other.

Large particles usually get smaller as a result of surface reactions. Both heating and freezing effects of tiny particles on the climate are seen.

Weathering can be classified as either physical or chemical. There is a wide variety in soil particle size due to variations in weathering processes.The overall surface area increases when the size is reduced more. This is significant since most chemical changes start at an object's surface.

The Earth's materials are the four major elements that make up the earth's crust. The earth is made up of minerals, rocks, soil, and water. Earth materials include the necessary building components for life, agriculture, and industry.

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Answer:

Gold

Hope it helps

have a good day

Answer:

c,density is the measure of compactness in a substance. Liquid particles are close together however they aren't as close as the particles in solids.

Since 1 L of water has 1,000 g, 0.1374 L or 137.4 g of water must be added to 8.27 g of acetic acid.

To make a 0.175 m aqueous acetic acid solution, you should add 8.27 g of acetic acid (HC2H3O2) to sufficient water to make the total solution mass equal to 8.445 g. This is because the molar mass of acetic acid is 60.05 g/mol, so 8.27 g can form a 0.137 m solution. To get this up to 0.175 m, a total mass of 8.445 g must be added, so 0.175 g of water must be added to the 8.27 g of acetic acid.

Making an aqueous acetic acid solution is simply a matter of combining the right amounts of acid and water. The amount of water to be added is easily calculated, since acetic acid has a known molar mass of 60.05 g/mol. The mass of the solution needs to be equal to the mass of the acetic acid plus the additional mass of water.

In this case, 8.27 g of acetic acid must be combined with 0.175 g of water, to produce a 0.175 m aqueous acetic acid solution.

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The dehydration of 3,3-dimethyl-2-butanol will produce two alkenes through a 1,2-methyl shift and carbocation rearrangement mechanism.

First, an acid (such as H3O+) will catalyze the formation of a carbocation intermediate by abstracting the acidic proton from the 3-carbon. This will result in an alcohol cation (shown below).

CH3 H Me Me + H Me Me CH3 OH Me Me

Then, a 1,2-methyl shift occurs in which the positive charge moves from the 3-carbon to the 2-carbon. This rearrangement results in a tertiary carbocation (shown below).

CH3 H Me + Me H Me Me CH3 OH Me Me

Finally, water is lost from the carbocation and an alkene product is formed.

CH3 H Me = Me H Me Me CH3 OH Me Me

The same process is repeated on the other side to yield the second alkene product.

CH3 H Me Me H Me = Me CH3 OH Me Me

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a. The anode is where oxidation occurs, so the half reaction taking place at the anode is: O₂(g) + 4 H⁺(aq) + 4 e⁻→ 2 H₂O(l)

b. The cathode is where reduction occurs, so the half reaction taking place at the cathode is: 2 H⁺(aq) + 2 e⁻+ 2 H₂S(g) → 2 S(s) + 2 H₂O(l)

c. To calculate the standard cell potential, Eocell, we need to add the reduction potential of the cathode and the oxidation potential of the anode. The reduction potential of the cathode half reaction is +0.15 V, and the oxidation potential of the anode half reaction is -1.23 V. Therefore, Eocell = +0.15 V + (-1.23 V) = -1.08 V.

d. To produce the voltage of -1.08 V, the reaction must be spontaneous, which means that the Gibbs free energy change, ΔG, must be negative.

The relationship between ΔG, Eocell, and the equilibrium constant, K, is: ΔG = -nFEocell = -RTlnK, where n is the number of electrons transferred, F is Faraday's constant, R is the gas constant, and T is the temperature.

Solving for K, we get: K = e^(-ΔG/RT) = e^(-nFEocell/RT).

Substituting the values, we get: K = e^(-(-2)(96485 C/mol)(-1.08 V)/(8.314 J/mol-K)(298 K)) = 4.5 x 10¹⁸. Since the reaction is in acid, the partial pressure of H⁺ is 1 atm.

Using the equilibrium constant expression for the reaction, K = [S]²/[H₂S]², we can solve for the partial pressure of H₂S: P(H₂S) = [S]/√K. Substituting the values, we get: P(H₂S) = (1 atm)/√(4.5 x 10¹⁸) = 6.7 x 10⁻¹⁰atm.

Therefore, the partial pressure of H₂S must be 6.7 x 10⁻¹⁰ atm, and the partial pressure of O₂ must be 1 atm, to produce the voltage in part c.

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A microphone will likely detect the least amount of sound when placed in cardboard box. Therefore, option A is correct.

A microphone converts airborne sound waves into electrical signals that can be recorded on a recording medium or broadcast over loudspeakers. Numerous audio recording devices are made possible by microphones for a variety of communications, music vocalists, speech, and sound recording applications.

A microphone is a type of input device used to record sound in digital form. The microphone can be used for a variety of tasks, including mixing music or adding sound to a multimedia display.

Thus, option A is correct.

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D) A microphone positioned inside a plastic foam cooler will detect the least amount of sound because styrofoam, the material of the cooler, has outstanding sound-absorption attributes due to its structure of tiny air bubbles.

The microphone will likely detect the least amount of sound when placed in a plastic foam cooler. This is because plastic foam (often referred to as styrofoam) has excellent sound-absorbing properties. It's made up of very tiny, tightly compacted air bubbles. These air bubbles absorb sound energy, converting it into a small amount of heat which dissipates almost immediately. In contrast, a cardboard box, a metal canister, and a paper bag do not have this property to the same extent, making them less effective at blocking sound.

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Answer:

I'd say C. You can eliminate the rest of the answers and get C. Most of the iron is found up North on the map.

Explanation:

Answer:

they explain the properties and structure of the compound which empirical molecular formulars cannot explain

The structural formulas are good for depicting polymers because polymers are the chemical compounds attached to the long chain with ac other which is impossible to represent other than the structural formula.

The structural formulas are the graphic representation or diagrammatical representation of the structure of any chemical formula in organic and inorganic chemistry they are mostly used.

In Polymers, they are long chains of chemicals compound can be shown diagrammatically or graphically to understand the attachment t of the bonds within them which signifies the physical properties too.

Therefore, polymers are the chemical compounds attached to the long chain with ac other which is impossible to represent other than the structural formula which is why structural formulas are good for depicting polymers.

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We have the number of moles of magnesium, now we will use the Avogadro number to determine formula units:

Avogadro number says that one mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). Does not matter which is the substance, always 1 mol will be 6.022 x 10^23 formula units.

We have 1.27 moles so we will have:

1.27 moles of magnesium are equivalent to 7.65 x 10^23 formula units

The size of the atoms of increases across a period and down a group

The correct statement regarding the trend for atoms getting larger is the option d.

Reason:

Analysis of each option is as follows;

However;

Therefore; the correct option is; as atoms get larger, their atomic number tends to increases, such as Sodium and Potassium

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