How many grams of silver is produced if 83.4 grams of lithium react

if 1.888 g of bismuth metal reacts with sulfur to give 2.323 g of bismuth sulfide, Bi2S3  is the empirical formula of the product.

The relatively simple entire numbers ratios of elements in a physical compound is its empirical formula. The empirical formula for sulphur monoxide, or SO, and disulfur dioxide, both of which are basic illustrations of such a notion, are both SO. S₂O₂ An empirical formula is just a cell's chemical formula that only specifies the ratios of the components it has and not the exact number or atom arrangement. This would be compound's element with the greatest whole number ratio. The simplest pretty much the entire ratio of the elements in a molecule is shown by empirical formulae, the quantity of each atom type is shown by molecule formulas, and the organization of the atoms in a structure is determined by structural formulas where molecules are bounded to each other.

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When current is allowed to flow, the species that gets oxidized depends on the specific conditions of the system. However, based on the given options, the likely species to be oxidized would be A) Cr₂O₇²⁻.

When current flows in a system, oxidation and reduction reactions occur simultaneously at different electrode surfaces. The species that gets oxidized is the one that loses electrons. In the given options, Cr₂O₇²⁻ and MnO⁴ are both polyatomic ions with high positive oxidation states, while Cr³⁺ and Mn²⁺ have lower positive oxidation states. H³⁺ refers to a hydrogen ion, which is not a likely candidate for oxidation in this context.

In the case of Cr₂O₇²⁻, it has a higher positive oxidation state compared to Cr³⁺. Therefore, it is more likely to undergo oxidation and lose electrons when current is allowed to flow. The half-reaction for the oxidation of Cr₂O₇²⁻ to Cr³⁺ can be represented as follows:

Cr₂O₇²⁻ (aq) → 2Cr³⁺ (aq) + 3e⁻

This reaction involves the reduction of another species, which gains the electrons released during the oxidation of Cr₂O₇²⁻. It's important to note that the actual species being oxidized or reduced can vary depending on the specific conditions of the system, such as pH and the presence of other reactants.

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If the strength of magnet 1 is weaker than the strength of magnet 2, then the overall kinetic energy in the system would increase. This is because the weaker magnet would exert less force on the magnetic object, causing it to accelerate more and gain more kinetic energy as it approaches the stronger magnet.

In the above scenario, the magnetic force between two magnets causes a magnetic object to accelerate, which in turn creates kinetic energy.

When the magnetic object is placed between the two magnets, the stronger magnet exerts a stronger magnetic force on the object, causing it to accelerate towards the stronger magnet.

At the same time, the weaker magnet also exerts a magnetic force on the object, albeit a weaker one. As a result, the object experiences a net force towards the stronger magnet, which causes it to accelerate and gain kinetic energy as it moves closer to the magnet with higher magnetic strength.

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There are approximately 32.89 grams of sodium in a 120-gram sample of NaHCO3.

The molar mass of NaHCO3 (sodium bicarbonate) can be calculated by adding up the atomic masses of its constituent elements:

NaHCO3 = 1Na + 1H + 1C + 3O

Molar mass of NaHCO3 = 23.0 g/mol + 1.0 g/mol + 12.0 g/mol + (3 × 16.0 g/mol) = 84.0 g/mol

This means that one mole of NaHCO3 has a mass of 84.0 grams.

To determine the number of moles of NaHCO3 in a 120-gram sample, we can use the following equation:

Since the ratio of Na to NaHCO3 is 1:1, there are also 1.43 moles of Na in the sample.

Finally, we can calculate the mass of sodium (Na) in the sample by multiplying the number of moles of Na by its atomic mass:

mass of Na = moles of Na × atomic mass of Na

mass of Na = 1.43 mol × 23.0 g/mol

mass of Na = 32.89 g

Therefore, there are approximately 32.89 grams of sodium in a 120-gram sample of NaHCO3.

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There are a lot of ionic compounds in fireworks, most of them are salts, like: Strontium Nitrate and Strontium Carbonate ( both in the color red); Calcium Carbonate and Calcium Chloride (orange); Sodium Nitrate, Sodium Oxalate (yellow); Barium Nitrate and Barium Carbonate (green) and so on. For the gunpowder itself we have the Potassium Nitrate as an ionic compound.

The chemical reaction for the combustion of black powder is:

6KNO3 + C7H4O + 2S -> K2CO3 + K2SO4 + K2S + 4CO2 + 2CO + 2 H2O + 3N2

It's not just a single reaction, but this is a general representation of it.

Entropy is a measurable physical characteristic and a scientific notion that is frequently connected to a condition of disorder, unpredictability, or uncertainty.

Molar enthalpy is the amount of energy per mole. Enthalpy is a thermodynamic quantity that corresponds to a system's total heat content according to this definition. It is equivalent to the system's internal energy plus the sum of the pressure and volume products. This value's unit of measurement is KJ/mol.

Entropy is assumed to be 1 kB/particle

kB: Boltzmann Constant = 1.3806*10^(23)/JK

Entropy, S = 1.3806*10^(-23) /JK

We are aware that S = Q/T

provided T = 83.85 k

and that Q = S*T = S*83.85k = 1.157*10(-21) J / particle.

Since 1 mole = 6.022x1023 particles of heat energy,

the formula for an is 1.157*10(-21)*6.022*10^23, which is 6.967*102 J/mole.

Argon's molar enthalpy is Q/n,

where n is the number of moles,

and ΔH equals 0.6967 KJ/mole.

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Answer:

It would require 80 g of NaOH .

Explanation:

Answer:55ml

Explanation:

To find the mass percent composition of an element, divide the mass contribution of the element by the total mass then multiply by 100.

The total mass = 200.0 g

Phosphorus mass = 87.28 g

Oxygen mass = 112.72 g

%composition of P:

=> (87.28 g/200.0g)*100

=> 43.64 %

%composition of O:

=> (112.72g/200.0 g)*100

=> 56.36 %

Answer:

cbbb vdf jfjd hx

Explanation:

Answer:

Mole Ratio Fraction

Explanation:

That's the answer.......

Answer:

Explanation:

Mole Ratio Fraction

Answer:

basalt

Explanation:

it’s rough on skin

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 cultures of prehistoric humans are primarily known through the excavation of stone tools and other durable artifacts, such as the Oldowan and Acheulian tool traditions.

Stone tools and imperishable artifacts serve as key archaeological evidence for understanding prehistoric cultures. Through meticulous excavation and analysis, archaeologists have been able to piece together the lifestyles, technological advancements, and social behaviors of early human societies. The term "paleolithic" refers to the Old Stone Age, a time when humans relied on stone tools as their primary implements.

The Oldowan tool tradition is considered the earliest stone tool industry, dating back around 2.6 million years ago. It is characterized by simple tools, such as choppers and scrapers, which were crafted by flaking off pieces from larger stones. These tools were primarily used for basic activities like butchering and processing animal carcasses.

Later, the Acheulian tool tradition emerged around 1.76 million years ago, representing an advancement in stone tool technology. Acheulian tools, such as handaxes and cleavers, were more refined and standardized, showcasing an increased level of sophistication in tool-making techniques. These tools served a wide range of purposes, including hunting, woodworking, and shaping raw materials.

By studying the Oldowan and Acheulian tool traditions, researchers gain valuable insights into the cognitive abilities, cultural development, and technological progress of early humans. The examination of these artifacts provides evidence of their adaptability, problem-solving skills, and the gradual refinement of their tool-making techniques over time.

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Answer:

3.21 x 10²³ CO² molecules

A line graph can show information about two or more data sets and is useful to compare them. In this example, you can compare the change in the heart rate of the two boys. You will find the graph in the attached files.

As the statement says, the line graphs can be used to compare results.

It is basically a chart showing a line connecting many data points.

It must contain two axes

→ Y ax ⇒ Dependent variable ⇒ In this example, it is the heart rate values

→ X ax ⇒ Independent variable ⇒ In this example, it is the number of times the measurements were taken.

So in this example, data about the change in heart rate was taken from two boys, John and Thabo.

Note about the data table: Since I do not know which value belongs to each boy, I drow a new table. You should use the data of your table to make a new graph.

When making the graph, you will see the difference between the boys and how the heart rate fluctuated as measurements were taken.

You can make conclusions about your results that are easier to see in the graph.

For instance, according to the attached graph, we could say that,

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Answer: Ionic attractions

Explanation:

Ionic bonding is a type of chemical bond that involves the electrostatic attraction between oppositely charged ions.

The disadvantage of increasing our use of solar energy is that unfortunately currently, the production and storage of solar energy is bit as cost efficient when compared to obtaining the same quantity of energy from fossil fuels.



The answer to the question is that it is not possible to calculate ΔG° without the balanced equation and stoichiometric coefficients.

The value of ΔG° (delta G standard) at 25°C can be calculated using the equation:

ΔG° = -RT ln(K)

Where:
- ΔG° is the change in Gibbs free energy at standard conditions,
- R is the gas constant (8.314 J/mol·K),
- T is the temperature in Kelvin (25°C = 298 K),
- ln(K) is the natural logarithm of the equilibrium constant.

To find the equilibrium constant (K), we need to use the concentrations of a and b in the equilibrium equation. The equation is given by:

K = [b]^y / [a]^x

Where:
- [b] is the concentration of b,
- [a] is the concentration of a,
- x is the stoichiometric coefficient of a in the balanced equation,
- y is the stoichiometric coefficient of b in the balanced equation.

In this case, since the concentrations of a and b are given as 0.0354 M and 0.121 M respectively, we can substitute these values into the equation. However, the balanced equation is not provided in the question, so we cannot determine the stoichiometric coefficients.

Therefore, without the balanced equation and stoichiometric coefficients, it is not possible to calculate the equilibrium constant (K) or ΔG° for this reaction.

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The inscribed polygon method for predicting aromaticity involves placing a polygon with one of its flat sides down and drawing a circle that touches all the vertices.

Molecular orbitals (MOS) below the center of the circle are bonding orbitals, and MOS above the center are antibonding orbitals. At each vertex where the polygon touches the circle, a line is drawn corresponding to a molecular orbital. Aromatic systems have all bonding MOS and homos (highest occupied molecular orbitals) completely filled with no unpaired electrons. This is done by placing one electron in each bonding orbital, then pairing up.

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The following are the correct options that describe the inscribed polygon method for predicting aromaticity:

The inscribed polygon method is a popular approach for predicting the aromaticity of a compound. The polygon's vertices represent the atoms of the compound, and the bond orbitals are represented by the lines. It is a cyclic arrangement of atoms with alternating single and double bonds that are more stable than their nonaromatic counterparts due to electronic delocalization. Aromaticity is a significant concept in organic chemistry because of its importance in the properties and reactivity of many organic molecules.

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The balanced chemical equation for the reaction is as follows:

6 Li[s] + \(N_{2}\)[g] = 2\(Li_{3}\)N[s]

Meaning of the reaction is that 6 moles of lithium reacts with nitrogen to form two moles of lithium nitride.

The product formed is:

Highly flammable and reactive chemical and a Dangerous fire and explosion hazard.

Lithium Nitride can affect you when breathed in and may be absorbed through the skin.

Contact can severely irritate and burn the skin and eyes. Breathing Lithium Nitride can irritate the nose and throat.

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The molecular weight of cerium(IV) nitrate hexahydrate is 446.24 g/mol. Therefore, one mole of cerium(IV) nitrate hexahydrate contains one mole of cerium(IV) ions, which will combine with four moles of nitrate ions to form one mole of cerium(IV) nitrate hexahydrate.

The formula for the concentration of ions in a solution is C = n/V where C is the concentration of ions, n is the number of moles of ions, and V is the volume of the solution in liters. The first step in solving this problem is to calculate the number of moles of cerium(IV) nitrate hexahydrate in 150.0 mL of a 0.565 M solution. This can be done using the following formula:n = M x V n = 0.565 mol/L x 0.150 L= 0.08475 mol of cerium(IV) nitrate hexahydrate This amount contains four times as many moles of nitrate ions as cerium(IV) ions.

Therefore, the number of moles of nitrate ions is: nitrate ions = 4 x 0.08475 militate ions = 0.339 molThe volume of the solution is 150.0 mL, which is equal to 0.150 L. Using the formula given above, we can calculate the concentration of nitrate ions :C = n/V= 0.339 mol/0.150 LC = 2.26 M Therefore, the concentration of nitrate ions in the solution is 2.26 M.

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Answer:Kinetic energy is the energy involved in an object's motion. Kinetic energy can be found in moving objects like a bullet, a human, and electromagnetic radiation like light. Kinetic energy is also the force that drives the random, continuous bouncing of atoms or molecules.

Explanation:

Kinetic energy is the energy involved in an object's motion. Kinetic energy can be found in moving objects like a bullet, a human, and electromagnetic radiation like light. Kinetic energy is also the force that drives the random, continuous bouncing of atoms or molecules.

Answer:

The validation of seafloor spreading in the 1950s and 60s

Explanation:

The theory of seafloor spreading was supported by numerous evidence including thermal probes that showed that heat flow over the mid-ocean ridges measured up to four times those measured in general bottom sediments, which are taken as due to the presence of molten Earth material close to the ridge crest

The ridge crest also show signs unusually seismic wave velocities that are considered to be due to microfracturing and thermal expansion from upwelling magma

Answer:

somewhere

Explanation:

Answer:1 answer number 1

Explanation:

Answer:

Yes

Explanation:

A fine chemical is defined as "Single, pure, and complex chemicals that are only produced in small amounts by multi-purpose plants".

As a substance undergoes a change from the solid to the liquid phase at constant temperature, the average kinetic energy of its molecules increases.

The relationship between a molecule's average kinetic energy and absolute temperature is as follows: K = 1 2 m v 2 and K = 3 2 k B T. The average kinetic energy of a substance's particles is directly inversely correlated with its temperature. As the temperature rises, the particles must move more quickly because their mass is constant. The heat that is applied when a substance is heated to a constant temperature (i.e., during the phase change state) causes the vibrating molecules to gain potential energy to dissipate the intermolecular force of attraction and move around freely. The potential energy therefore rises as a result.

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