what is a limitation of the arrhenius model of acids and bases?

Answer:

The strength of the field varies depending on its location around the magnet. The magnetic field of a bar magnet is strongest at either pole of the magnet. It is equally strong at the north pole when compared with the south pole.

Explanation:

Answer:

metaphase

Explanation:

the cells chromosomes line themselves in the middle of the cell through a type of cellular tug of war.

Answer:

metaphase

Explanation:

During metaphase, the cell's chromosomes align themselves in the middle of the cell through a type of cellular "tug of war." The chromosomes, which have been replicated and remain joined at a central point called the centromere, are called sister chromatids.

Answer:126

Explanation:

The pollution→ over-exploitation of resources→ deforestation→ over-population are the major things which causes the ecosystem in a negative manner.

In the food web we can write this as pollution→ over-exploitation of resources→ deforestation→ over-population.

The human activities has very deep impact on the flow of energy because the human's are the responsible for polluting the air by using different types of machines, industries, by burning the things. By doing so the different types of gases produce which mixes up with our atmosphere and can harm the ozone layer. Due to the human activities the global warming is increasing day by day. The air becomes more pollutes. The human activities have a negative impact on our ecosystem by creating problems.

So we can conclude that pollution→ over-exploitation of resources→ deforestation→ over-population are the major things which causes the ecosystem in a negative manner.

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Answer:

0.756 J

Explanation:

Temperature change (delta T) = 0.855 degrees Celsius

Mass of water (m) = 0.2067 g

Specific heat capacity of water (c) = 4.28 J/g degrees C

Heat added = m * c * delta T

= (0.2067 * 4.28 * 0.855) J

= 0.756 J

The number of moles of gas is the same on both sides, the change in volume will not affect the equilibrium position of the reaction. The answer is B) There is no change because there are the same number of moles of gas on both sides.

To determine the change that will occur when the container is shrunk from 9.0 L to 3.0 L for the given reaction:

51.8 kJ + H₂(g) + I₂(g) → 2HI(g)

We need to consider the number of moles of gas on each side of the reaction.

On the left side, there are 2 moles of gas (H₂ and I₂), while on the right side, there are 2 moles of gas (2HI). Both sides have an equal number of moles of gas.

Therefore, the correct answer is B) There is no change because there are the same number of moles of gas on both sides.

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Answer:

Easy 46 million turkeys

Medium three days

Hard: 1934

Fun: The first President on record issuing a "pardon" to his turkey was Ronald Reagan.

Explanation:

hop tis helped

Answer:

protons(positively charged) and the neutrons (no charge)

Explanation:

Answer:

The nucleus of an atom contains protons and neutrons.

The hormone profile with the anatomical structure that would develop or degenerate is matched.

The hormone profile is matched with the anatomical structure as follows:

1. Presence of estrogen in females: This hormone leads to the development of the Mullerian ducts in females.

2. Absence of testosterone in females: Testosterone is not present in females, so the Wolffian ducts degenerate in females.

3. Presence of anti-Mullerian hormone in males: The anti-Mullerian hormone in males causes the degeneration of the Mullerian ducts.

4. Wolffian ducts develop: The Wolffian ducts develop in the presence of testosterone in males.
In summary, estrogen leads to the development of the Mullerian ducts in females, while testosterone leads to the development of the Wolffian ducts in males.

The absence of testosterone in females results in the degeneration of Wolffian ducts, and the presence of anti-Mullerian hormone in males causes the degeneration of Mullerian ducts.

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Answer:

it will eventually die off or eventually repopulate

Explanation:

This flask originally held some copper wire and a clear solution of nitric acid. The two substances reacted and produced a brown gas and a blue solution. This reaction cannot be reversed.

This reaction is a non-reversible redox reaction.

A non-reversible redox reaction is a chemical reaction in which the reactants undergo a transfer of electrons resulting in the formation of new products that cannot be converted back into the original reactants by any means under normal conditions.

In a non-reversible redox reaction, one species loses electrons and becomes oxidized, while another species gains electrons and becomes reduced. The changes in electron distribution and oxidation states of the species are permanent and cannot be reversed.

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The speed of the particles rises with the temperature of the solid, liquid, or gas. The particles slow down with decreasing temperature.

A liquid can turn into a solid if it is cooled down far enough.

The average kinetic energy of the molecules falls as a liquid cools.

The liquid eventually turns into a solid when the quantity of heat removed is sufficient to cause the molecules to be attracted to one another.

Freezing is the process of transitioning from a liquid to a solid.

It loses thermal energy when the liquid cools. Its constituent particles therefore decelerate down and converge.

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Answer:

Explanation:

To solve this problem, we can use the ideal gas law:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

At STP (standard temperature and pressure), the temperature is 0°C or 273.15 K, and the pressure is 1 atm or 101.325 kPa.

We can use the ideal gas law to find the number of moles of chlorine gas in the sample:

n = PV/RT

where P is the pressure, V is the volume, R is the gas constant, and T is the temperature in Kelvin.

First, we need to convert the given temperature of 25.2°C to Kelvin:

T = 25.2°C + 273.15 = 298.35 K

Now we can calculate the number of moles of chlorine gas in the sample:

n = (100.8 kPa)(353.2 mL)/(8.314 J/K/mol)(298.35 K)

n = 0.0158 mol

Next, we can use the number of moles and the ideal gas law to find the volume at STP:

V = nRT/P

V = (0.0158 mol)(8.314 J/K/mol)(273.15 K)/(101.325 kPa)

V = 0.364 L or 364 mL

Therefore, the volume of the chlorine gas at STP would be 364 mL.

Answer:

129.50 N/kg

Explanation:

125 kg + 4.50 N

129.50 N/kg

Answer:

C

C

B

Explanation:

1. Dominant Traits are always shown on the allele because it takes over

2. A mutualistic relationship are 2 organisms that work together. For example, the rhino and oxpecker, which the oxpecker eats the pests on the rhino, creating food for the bird and healthiness for the rhino

3. Plants and Animals Cells have a cell membrane but animals do not have a cell wall. The answer could also be golgi but B is the best answer

The electrons stay in the electron cloud and do not fly off because of the stronger attraction to the proton.

In the electron cloud, the positive charge of the proton binds the electron from flying off since opposites attract. This allows the electrons to move around the nucleus of an atom. The nucleus is positively charged and the electrons that moves around the nucleus are negatively charged. so they attract each other. It is because the atom is so small. There are too many protons. some of the outer protons are loosely bound and more free to react with the electron. Most atoms do not have too many protons. so there is nothing for the electron to interact with. Therefore, each electron in a stable atom remains in its wavefunction shape.

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The Avian FLU is a health hazard because it may infect humans (question 1), precautions are being placed to contain the spread of this infection is avoid the spread of infected animals (question 2), and public and scientists prevent highly pathogenic strains of avian influenza from spreading to New York State through correct advertise to authorities in suspicious cases.

The avian flu is a viral disease transmitted by bird species which are the main vectors to be controlled to avoid infection in human populations.

Therefore, with this data, we can see that the avian flu is a viral disease transmitted by bird species and represents a serious problem for healthcare.

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Lessening a solution's concentration is the process of dilution. Knowing the volume and concentration of a chemical allows for dilution calculations.

Explanation: It just takes 10 mL of the 10% solution to dilute it up to 100 mL with FRESH SOLVENT, or ten times as much to lower the concentration to 1%.

(C1) (V1) = (C2) (V2) is the formula for determining a dilution, where C1 is the concentration of the beginning solution. The initial solution's volume is designated as V1. The final solution's concentration is C2. The final solution's volume is V2.

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Answer:

Mixing chemicals can be dangerous because you are handling chemicals that are often hazardous.*

Always wear the correct personal protective clothing and equipment when mixing chemicals.

Follow these steps to mix chemicals safely:

Choose a suitable mixing area. The site should be away from plants, people, animals and waterways. It needs to have good lighting and must be well ventilated. There should be first aid equipment and materials to clean up any spills that may occur. Make sure you have lots of clean, fresh water available. The water that you are using in your mixture should be as clean as possible.

Check the product label for the chemical to find out how to mix a solution, including the proportions or volumes needed. If you are unsure, contact the manufacturer or retailer for instructions. I hope it helps. Be safe.

this is the answer to ur question hope is helpful

Answer:

6.31x10^-10

Explanation:

Answer: 6.31 x 10^-10

Explanation:

Moth flakes dissolve in methanol at a rate of A, 16.7 g/100mL.

The solubility of moth flakes in methanol is the maximum amount of the solute that can dissolve in a given amount of solvent at a given temperature.

To calculate the solubility of moth flakes in methanol, divide the mass of moth flakes by the volume of methanol and multiply by 100 to express the result as grams per 100 mL of solution.

So, the solubility of moth flakes in methanol is:

Solubility = (mass of moth flakes / volume of methanol) x 100

Solubility = (12.54 g / 75.2 mL) x 100

Solubility = 16.7 g/100mL

Therefore, the solubility of moth flakes in methanol is 16.7 g/100mL.

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Answer:

It should be 115.5 amu but you didnt type that as an answer choice so...

Explanation:

Bruh all you had to do was add oxygen and sulfur and subtract from the total to get your answer :D.

Her experiment doesn't observe the law of conservation of mass

The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed and law of conservation of mass does not says that when any compound burned the ribbon in oxygen and collected all the pieces of white ash then its mass doesn't change its always constant so in the given data

A student determined the mass of a piece of magnesium ribbon and it was 3.0 g she then burned the ribbon in oxygen and collected all the pieces of white ash (magnesium oxide) and then mass of the ash is 0.5g so here when burn the compound the mass changes so this reaction does not followed the law of conservation of mass

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The volume of 53.5 g of O₂ at 30.1°C and 110.0 kPa is 1 m³ approximately

According to Charles' Law, while pressure is maintained constant, the volume of a given amount of gas varies in direct proportion to the absolute temperature of the gas. The Kelvin scale is used to measure temperature to determine the absolute temperature.

To find the volume of a gas, we can use the Ideal Gas Law:

PV = nRT

where P is the pressure of the gas, V is the volume of the gas, n is the number of moles of gas, R is the universal gas constant, and T is the temperature of the gas in Kelvin.

First, we need to convert the given temperature of 30.1°C to Kelvin:

T = 30.1°C + 273.15 = 303.25 K

Next, we need to determine the number of moles of O₂ present. We can use the molar mass of O₂ to convert from grams to moles:

molar mass of O₂ = 32.00 g/mol

moles of O₂ = 53.5 g / 32.00 g/mol = 1.671875 mol

Now we can rearrange the Ideal Gas Law to solve for V:

V = nRT / P

V = 1.671875 × 8.3145 × 303.25 /110 k × 1000 Pa / kPa

V = 0.062878 m³

Finally, we round the answer to the nearest tenth: (rounded to one decimal place) V = 1 m³

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Answer:

i think its c but im sorry if im wrong

Explanation: