Rank the compounds by the ease with which they ionize under acidic conditions. Rank the compounds from easiest to hardest. To rank items as equivalent, overlap them.

Answer:

48 teaspoons

Explanation:

1 cup equals 48 teaspoons.

So, the balanced equation for the redox reaction in acidic solution is:

\(2MnO_4^-(-4)(aq) + SO_2(g) == 2Mn^2+ (aq) + SO_4^2-4(aq)\)

To balance the following redox reaction in acidic solution:

\(2MnO_4^-(-4)(aq) + SO_2(g) == 2Mn^2+ (aq) + SO_4^2-4(aq)\)

We need to add coefficients in front of each reactant and product in the balanced equation to make the number of atoms of each element on both sides of the equation equal.

First, we need to write the balanced equation for the reaction:

\(2MnO_4^-(-4)(aq) + SO_2(g) == 2Mn^2+ (aq) + SO_4^2-4(aq)\)

Next, we need to add coefficients in front of each reactant and product to balance the equation. The coefficients indicate the number of moles of each substance present in the reaction.

Coefficients: In this balanced equation, the number of atoms of each element on both sides of the equation is equal.

Therefore, the balanced equation for the redox reaction in acidic solution is:

\(2MnO_4^-(-4)(aq) + SO_2(g) == 2Mn^2+ (aq) + SO_4^2-4(aq)\)

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In the given chemical equation, oxidation takes place at anode  of the electrochemical cell .

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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Answer:

Increase

Less/low number

Lessen

Explanation:

Increase > Increase in temperature cause increase in volume.

Less/low number > As volume increases the number of particles to be adjusted in the same space will be lesser than before.

Lessen> At constant pressure as increase in temperature cause increase in volume so the density will lessen due to increase in volume. Density equation is given below.

Density = mass /volume

If volume increases density will get lowered.

Answer:

C. Food on shelves in a refrigerator

The boiling point of an element is largely determined by its intermolecular forces, which in turn are affected by factors such as atomic size, electronegativity, and the number of electrons.

In the case of strontium, which has a boiling point of 1382°C, the element with the most similar boiling point is likely to be one that is in the same group as it on the periodic table. This is because elements in the same group tend to have similar electronic configurations and atomic radii. Therefore, barium, which is in the same group as strontium, is likely to have a boiling point that is most similar. On the other hand, elements in different groups will likely have very different boiling points. For example, fluorine, which is in a different group than strontium, will likely have a boiling point that is least similar to that of strontium.

On the other hand, a non-metal element from a different group, like fluorine (F) in Group 17 and Period 2, would have a boiling point least similar to strontium due to the significant difference in their chemical properties and atomic structures.

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Answer:

hope it helps...

Explanation:

A material composed of two or more substances is a mixture. ... A substance that can be broken down into chemically simpler components (because it has more than one element) is a compound. For example, water is a compound composed of the elements hydrogen and oxygen.

Hello! :)

Noble gases are located in group 8A in the periodic table.

Elements in this group contain 8 valence electrons, making them very stable elements. Some examples of elements in this group include Neon, Argon, and Krypton.

Answer:

inside

Explanation:

Answer:

The outside of the bend can carry more sediment, since the water is moving the fastest.

Explanation:

Edmentum sample answer

Answer:

This option is correct

Explanation:

Molecules are expressed in the form of Lewis in order to simplify their expression or chemical study, but this does not mean that they manifest or respect this form in all three dimensions since some are generally unstable, or even in the third dimension, these locations between atoms are respected for the characteristics of their unions.

Answer:

A part.

Explanation:

Because the reactants must be the exact same as the the products.

Answer:

Chemical Changes are also called Chemical Reactions. Chemical reactions involve combining different substances. The chemical reaction produces a new substance with new and different physical and chemical properties. Matter is never destroyed or created in chemical reactions.

Explanation:

The type of fog that is characterized by cool air moving over warm water, allowing evaporated water from the water surface to cool and condense is called steam fog, also known as sea smoke or evaporation fog. Steam fog forms when cold air, typically in the form of an arctic air mass, passes over relatively warm water, such as a lake or ocean. As the cool air comes into contact with the warm water, it causes the water vapor to cool rapidly, leading to condensation and the formation of fog.

This type of fog often appears as a low-lying cloud or mist hovering over the water surface, creating a visually striking effect. Steam fog is commonly seen during the colder months when the temperature difference between the air and water is more significant. It is most prevalent in coastal areas or regions with large bodies of water.

Steam fog can limit visibility and impact maritime activities such as shipping and navigation. It is important for mariners to be aware of the potential presence of steam fog to ensure safe passage. Understanding the formation and characteristics of steam fog can help in predicting its occurrence and mitigating its effects.

Explanation:

I think

maganese is +7 and Nitrogen is +5

sorry if I am incorrect I haven't done chemistry in a year

btw for chemistry if you need help with equations I used this equation balancer called chemical aid it helps

In Mn3N4, the compound consists of three manganese (Mn) atoms and four nitrogen (N) atoms.

To determine the oxidation numbers, we can assign x as the oxidation number for manganese and y as the oxidation number for nitrogen.

Since the compound is neutral overall, the sum of the oxidation numbers must equal zero.

For the three manganese atoms:

3x = 0

x = 0

For the four nitrogen atoms:

4y = 0

y = 0

Therefore, the oxidation numbers for manganese (Mn) and nitrogen (N) in Mn3N4 are both 0.

The formulae of the metal according to the law of multiple proportions are XCl₂ and XCl₃, and X is Fe so FeCl₂ and FeCl₃

We have the two chlorides that are XyClw and XyClz. We have to show that the ratios w to z are in small whole numbers.

Compound A = 12.7 g X and 7.1 g Cl, then X must be 5.56 g

Compound B = 16.3 g X and 10.7 g Cl, then X must be 5.56 g.

7.1 x (12.7/16.3) = 5.53 g Cl for each gram of X

10.7 x (12/7/16.3) = 8.34 g Cl for each gram of X. Then what is the ratio of the two Cl numbers: Now, divide both numbers by the smaller one. That is

5.53/5.53 = 1.00

8.34/5.53 = 1.508.

Rounding off 1.508 to 1.50, then you can see that 1.0 to 1.5 is actually 2 to 3 and those are small whole numbers. Within experimental error, the law of multiple proportions is proved to be true.

The compounds must be XCl₂ and XCl₃, and X is Fe so FeCl₂ and FeCl₃ are the compounds.

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Answer: 27

Explanation: multiply 3.0 3 times

The mass percentage of silver in the salt is 8.18%.

Given that 3.14 g of a silver salt (AgX) is dissolved in 720.0 mL of water. A current of 2.81 A, applied for 805 s, is required to plate out all of the silver in the solution.

We are required to determine the mass percentage of silver in the salt.Main answer:Let's first calculate the amount of silver deposited using Faraday's laws of electrolysis:

From Faraday's first law of electrolysis,mass of silver deposited = ItM / 96500where I = current = 2.81 A, t = time for which current is passed = 805 s, M = molar mass of silver = 107.87 g/mol and 96500 C = 1 mol of electrons.

So, mass of silver deposited = (2.81 A × 805 s × 107.87 g/mol) / 96500= 0.256 g.

Now, let's determine the mass percentage of silver in the salt.

Mass percentage of silver in the salt can be calculated as:mass percentage = (mass of silver / mass of AgX) × 100where mass of silver = 0.256 g and mass of AgX = 3.14 g.

Therefore, mass percentage = (0.256 g / 3.14 g) × 100= 8.18%

The given question is based on Faraday's laws of electrolysis, which helps us to determine the amount of metal deposited during electrolysis.

According to Faraday's laws of electrolysis, the amount of metal deposited is proportional to the quantity of electricity passed through the electrolyte.

Hence, we have used Faraday's laws to determine the amount of silver deposited by applying a current of 2.81 A for 805 s.

From the calculation, we have obtained that 0.256 g of silver has been deposited on the cathode. Now, we are required to determine the mass percentage of silver in the salt.

The mass percentage can be calculated as the ratio of the mass of silver deposited to the mass of AgX taken initially multiplied by 100.

From the calculation, we have obtained that the mass percentage of silver in the salt is 8.18%.Hence, the mass percentage of silver in the salt is 8.18%.

The mass percentage of silver in the salt is 8.18%. This answer has been calculated using Faraday's laws of electrolysis, which helps in determining the amount of metal deposited during electrolysis.

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Measurement is a way to describe matter with numbers and units.

Measurement is a fundamental process used to describe and quantify various aspects of matter. It involves assigning numerical values to physical quantities and expressing them using appropriate units of measurement.

In scientific and everyday contexts, measurements provide a standardized and consistent way to communicate information about the properties, dimensions, quantities, and characteristics of objects, substances, or phenomena. By using measurements, we can describe the size, length, mass, volume, temperature, time, and many other attributes of matter.

The process of measurement typically involves two components: a numerical value and a unit. The numerical value represents the magnitude or quantity being measured, while the unit provides the reference or scale by which that quantity is expressed. Units help provide meaning, context, and comparability to measurements.

Hence, measurement provides a quantitative and objective way to describe matter, allowing us to understand and interact with the physical world in a systematic and meaningful manner.

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Answer:

Explanation:

Mixture can be easily separated by physical methods. Homogeneity and heterogeneity of a mixture is determined by whether the components there in are in a single phase and evenly distributed or not.

A solution has a solute evenly dissolved in  solvent to form a liquid substance.

An element is the basic form of  substance which cannot be broke down into any other simpler unit.  

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Yes, a higher heat of combustion for a fuel means it is more efficient. The heat of combustion is the amount of heat produced when a unit amount of a substance burns.

Therefore, a higher heat of combustion indicates that more heat is generated when the fuel burns. This, in turn, means that more energy is available from the fuel, making it more efficient.Therefore, a fuel with a higher heat of combustion provides more energy per unit of fuel. As a result, it is generally more efficient because it requires less fuel to produce the same amount of energy as a less efficient fuel with a lower heat of combustion.In summary, a higher heat of combustion means that a fuel is more efficient because it produces more energy per unit of fuel. This reduces the amount of fuel required to produce the same amount of energy, resulting in better fuel efficiency.

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So 100ml of water has a mass of 100 grams. The change in temperature is (100°C - 27°C) = 73°C. Since the specific heat of water is 4.18J/g/°C we can calculate the amount of energy needed by the expression below. Energy required = 4.18 J/g/°C X 100g X 73°C = 30.514KJ.

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Answer:1 00 mL x 1g/1 mL x 40.65 kJ/mol = 226 kJ

Explanation:

There are 0.048 moles of aluminum in the given sample.

The number of moles of aluminum can be calculated using Avogadro's number, which states that there are 6.022 x 10²³ particles in one mole of a substance. Therefore, the number of moles of aluminum can be calculated by dividing the given number of atoms by Avogadro's number.

Given that there are 2.90 x 10²² atoms of aluminum, the number of moles of aluminum can be calculated as:

Number of moles = Number of atoms / Avogadro's number

Number of moles = 2.90 x 10²² / 6.022 x 10²³

Number of moles = 0.048 moles

Therefore, the number of moles of Al in a sample containing 2.90x10²² atoms is 0.048 mol.

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Answer:

About 277 Kelvin

Explanation:

Take the celcius, and add 273.15 to it

4°C + 273.15 = 277.15K

And round the answer to the nearest whole

277.15K ≈ 277K

Answer:

A is the answer it is correct

Answer:

A

Explanation:

trust me

The temperature of the food or beverage during consumption affects the volatiles.

The flavor of food or beverages is influenced by the presence of volatile compounds, which are responsible for the aroma and taste. These volatile compounds are released from the food or beverage and interact with our olfactory receptors, contributing to the overall sensory experience. Temperature plays a crucial role in this process.

When food or beverages are heated, the temperature increase leads to an increase in the volatility of certain compounds. Higher temperatures can cause the evaporation of volatile compounds, releasing them into the air and enhancing the aroma and flavor perception. For example, heating coffee can intensify its aroma due to the increased release of volatile coffee compounds.

On the other hand, cold temperatures can also affect flavor perception. Lower temperatures can decrease the volatility of certain compounds, leading to reduced aroma and flavor intensity. This is why some foods or beverages may taste less flavorful when consumed cold compared to when they are warm.

In summary, the temperature of the food or beverage during consumption affects the volatility of compounds, which in turn impacts the flavor perception. Controlling the temperature can play a significant role in enhancing or diminishing the sensory experience of the food or beverage.

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