(b) at 400k both compounds are gases. at this temperature, which compound, ch4(g) or ccl4(g), behaves more like an ideal gas? justify your answer, including reasoning about both molecules.

Answer:

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The concentration of salt in the tank when water starts to overflow is 12 grams per gallon.

To find the concentration of salt in the tank when water starts to overflow, we need to determine the amount of salt in the tank at that point and divide it by the total volume of water.

First, let's calculate the amount of salt that flows into the tank per minute:
8 grams of salt per gallon * 3 gallons per minute = 24 grams of salt per minute.

Next, let's calculate the amount of water that flows out of the tank per minute:
2 gallons per minute.

The net change in the volume of water in the tank per minute is:
3 gallons per minute - 2 gallons per minute = 1 gallon per minute.

Since the initial volume of water in the tank is 50 gallons and the net change in volume is 1 gallon per minute, the time it takes for the water to overflow is:
(100 gallons - 50 gallons) / 1 gallon per minute = 50 minutes.

Therefore, after 50 minutes, the tank will overflow.

To find the concentration of salt in the tank at that point, we need to calculate the total amount of salt in the tank after 50 minutes:
24 grams per minute * 50 minutes = 1200 grams.

The total volume of water in the tank is 100 gallons, and since the tank overflows after 50 minutes, the amount of water in the tank is 100 gallons.

Therefore, the concentration of salt in the tank when water starts to overflow is:
1200 grams / 100 gallons = 12 grams per gallon.

So, the concentration of salt in the tank when water starts to overflow is 12 grams per gallon.

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Answer:

in this reaction more reactive mg is replacing

less reactive h. hence it is dipalcement reaction.

Explanation:

hope its hepl you

please mark brainlist.

Answer: Elements found in group 1 (Alkaline Metals)

Explanation: Any element found in group 1, such as Lithium, Sodium, Caesium, or Francium, have similar properties as potassium. Atoms that are found in the same group on the periodic table have similar chemical properties.

Answer:

In simple terms it is when two chemicals bond with each other

Explanation:

For more detailed explanation here's your answer:-

Taking into account definition of limiting reagent, H₂O will be the limiting reagent, 0.275 moles of H₂S can be produced if 0.99 mol of aluminum sulfide and 0.55 mol of water react and 0.898 moles of the excess reagent remains after the reaction is complete.

In first place, the balanced reaction is:

Al₂S₃ + 6 H₂O → 2 Al(OH)₃ + 3 H₂S

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

The limiting reagent will be the one that is used up first in the reaction while the excess reagent will be the one that is not completely used up during the reaction.

The amount of product obtained from the reaction will always depend on the amount of limiting reagent in the reaction.

To determine the limiting reagent, it is possible to use a simple rule of three as follows: if by stoichiometry 1 mole of Al₂S₃ reacts with 6 moles of H₂O, 0.99 mole of Al₂S₃ reacts with how many moles of H₂O?

moles of H₂O= (0.99 mole of Al₂S₃× 6 moles of H₂O)÷ 1 mole of Al₂S₃

moles of H₂O= 5.94 moles

But 5.94 moles of H₂O are not available, 0.55 moles are available. Since you have less moles than you need to react with 0.99 mole of Al₂S₃, H₂O will be the limiting reagent.

To calculate the amount of excess reagent that remains after the reaction is complete, you can use a simple rule of three as follows: if by stoichiometry 6 moles of H₂O reacts with 1 mole of Al₂S₃, 0.55 moles of H₂O reacts with how many moles of Al₂S₃?

moles of Al₂S₃= (1 mole of Al₂S₃× 0.55 moles of H₂O)÷ 6 moles of H₂O

moles of Al₂S₃= 0.092 moles

If 0.99 moles of Al₂S₃ are avilable, the excess moles can be calculated as:

excess moles of Al₂S₃= 0.99 moles - 0.092 moles

excess moles of Al₂S₃= 0.898 moles

0.898 moles of the excess reagent remains after the reaction is complete.

Considering the limiting reagent, the following rule of three can be applied: if by reaction stoichiometry 6 moles of H₂O form 3 moles of H₂S, 0.55 moles of H₂O form how many moles of H₂S?

moles of H₂S= (0.55 moles of H₂O×3 moles of H₂S)÷6 moles of H₂O

moles of H₂S= 0.275 moles

Finally, 0.275 moles of H₂S can be produced.

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Answer:

b

Explanation:

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

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

From the question

mass = 12.9 g

volume = 8 cm³

The density of the block is

\(density = \frac{12.9}{8} \\ = 1.6125\)

We have the final answer as

Hope this helps you

Answer:

The temperature of the cooking liquid. Oil will generally be a lot hotter and will cook faster, resulting in different texture. Well it's because the highest temperature possible in cooking in water is 100 C. With cooking in oil temperature can reach to as high as 230 - 240 C.

The experimental molarity of HCl will be skewed, causing the observed reaction to potentially be less intense or slower than it would have been at the original molarity.

In order to address your question about how the experimental molarity of HCl will be skewed when a student adds deionized water to the Erlenmeyer flask, consider the following:

1. The student has an initial molarity (concentration) of HCl in the Erlenmeyer flask.
2. By adding deionized water to the flask, the student increases the total volume of the solution.
3. Molarity is defined as the number of moles of solute (in this case, HCl) per liter of solution.

When the volume of the solution increases due to the addition of deionized water, the molarity (concentration) of HCl will decrease. This is because the number of moles of HCl remains the same, but the total volume of the solution has increased.

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Answer:

[See Below]

Explanation:

✦ A beaker of liquid would measure the volume of a liquid.

✦ A graduated cylinder is good for estimating the volume of a liquid.

✦ You'd most likely use a tape measure to measure the wall length and width.

~Hope this helps Mate. If you need anything feel free to message me.

Answer:

positively charged -protons

Negatively charged-electrons

Dissolve NaOH into the Solution will - Increased E

Increase the temperature - Increased E

Increase the amount of \(PbCl_{2}\) - No change in E

Dilute the solution by adding \(H_{2}O\) - Increased E              

E= Voltage or the electromotive force generated in the cell

Dissolving NaOH will increase the conductivity and number of ions in the cell and Increases E .  Adding water also increases the presence of hydrogen and hydroxide ions in the solution and Increases E.

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Answer:

B. is the answer

Explanation:

(A) (B) + (C) (D) (AD) +(CB)

(H) (F) + (Na) (OH) --> H2O+NaF

Answer:

A) Scandium

B)

C) Gallium

D

Approximately 27.44 grams of nitrogen (N₂) would be required to fill the balloon to the same pressure, volume, and temperature as the given 0.14 g of helium (He).

To determine the mass of nitrogen (N₂) required to fill the balloon to the same pressure, volume, and temperature as the given 0.14 g of helium (He), we need to use the ideal gas law equation:

PV = nRT

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

Since the pressure, volume, and temperature are the same for both gases, we can compare the number of moles of helium (He) and nitrogen (N₂) using their molar masses.

The molar mass of helium (He) is approximately 4 g/mol, and the molar mass of nitrogen (N₂) is approximately 28 g/mol.

Using the equation: n = mass / molar mass

For helium (He): n(He) = 0.14 g / 4 g/mol
For nitrogen (N₂): n(N₂) = (0.14 g / 4 g/mol) * (28 g/mol / 1)

Simplifying: n(N₂) = 0.14 g * (28 g/mol) / (4 g/mol)

Calculating: n(N₂) = 0.14 g * 7

The number of moles of nitrogen (N₂) required to fill the balloon to the same pressure, volume, and temperature is 0.98 moles.

To find the mass of nitrogen (N₂) required, we can use the equation: mass = n * molar mass

mass(N₂) = 0.98 moles * 28 g/mol

Calculating: mass(N₂) = 27.44 g

Therefore, approximately 27.44 grams of nitrogen (N₂) would be required to fill the balloon to the same pressure, volume, and temperature as the given 0.14 g of helium (He).

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Answer:  the formula of the molecule is CH₂O.

Explanation:

Based on the given information, let's determine the formula of the molecule.

Let's assign variables to represent the number of atoms of each element:

C = number of carbon atoms

H = number of hydrogen atoms

O = number of oxygen atoms

According to the information provided:

For every carbon atom, there are twice as many hydrogen atoms, so H = 2C.

The molecule has the same number of oxygen atoms as carbon atoms, so O = C.

Using these relationships, we can express the formula of the molecule:

C H₂Oₓ

The subscripts indicate the number of atoms for each element. Since the number of oxygen atoms is the same as the number of carbon atoms (C), we can simplify the formula to:

CH₂O

The 20 percent carbon monoxide level is approximately five times more effective for oxygen transport than the 60 percent carbon monoxide level.

Carbon monoxide (CO) is an odorless, colorless and tasteless gas that is toxic to humans and animals. It is produced when fossil fuels such as gasoline, wood, coal, or natural gas are burned. Carbon monoxide is a product of incomplete combustion, when there is not enough oxygen to produce carbon dioxide. In the presence of oxygen, carbon monoxide can be converted to carbon dioxide. In the environment, carbon monoxide is created by the burning of fossil fuels and by natural processes such as forest fires. In the home, carbon monoxide is produced by fuel-burning appliances, such as furnaces, stoves, water heaters, and fireplaces. Inadequate ventilation can allow carbon monoxide to accumulate to dangerous levels. Exposure to high levels of carbon monoxide can cause serious health problems, including death. Symptoms of carbon monoxide poisoning include headache, dizziness, nausea, and difficulty breathing.

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Answer:electrons

Explanation:

Answer:

That is def true

Explanation:

Answer:

Land plants are also known as Embryophytes. Embryophytes are complex multicellular eukaryotes with specialized reproductive organs. The name derives from their innovative characteristic of nurturing the young embryo sporophyte during the early stages of its multicellular development within the tissues of the parent gametophyte.

Explanation:

Answer:

there used for mountains , wait I'm just trynna get points ya feel me

Explanation:

The least likely element combination would be hydrogen (H) and sodium (Na) since their ionization energies differ significantly.

To determine the least likely element combination, we need to consider the ionization energies and their relative values. The element combination that is least likely would involve elements with similar or close ionization energies.

Comparing the ionization energies:

1,312 kJ/mol (H) < 1,402 kJ/mol (N) < 1,314 kJ/mol (O) < 496 kJ/mol (Na)

Based on these values, the least likely element combination would be hydrogen (H) and sodium (Na) since their ionization energies differ significantly.

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Answer:

Proton

Explanation:

It is a proton since the formula represents one amu and it isn't a neutron since it is +1 not -1.

Answer:

single displacement

A body travels 10 meters during the first 5 seconds of its travel, and it travels a total of 30 meters over the first 10 seconds of its travel the average speed during the time from t = 5 seconds to t = 10 seconds is 4 meters/second.

Calculate the total distance travelled during that time period and divide it by the length of the interval to determine the average speed between t = 5 and t = 10 seconds.

The first five seconds' worth of distance is recorded as 10 metres, and the first ten seconds' worth of distance is given as 30 metres. As a result, the distance covered between t = 5 and t = 10 seconds can be estimated as follows:

Distance from t = 5 seconds to t = 10 seconds

                          = Total distance traveled in 10 seconds - Distance traveled in the first 5 seconds

Distance from t = 5 seconds to t = 10 seconds

                          = 30 meters - 10 meters

                          = 20 meters

The duration of the time interval from t = 5 seconds to t = 10 seconds is 10 seconds - 5 seconds

                                                                  = 5 seconds.

Average speed = Distance traveled / Duration

Average speed = 20 meters / 5 seconds = 4 meters/second

Thus, the correct option is c.

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A healthcare provider who functions as a liaison between team leaders and other healthcare providers is often referred to as a "care coordinator" or "care manager."

A managed care organization can be defined as a health care provider or a group of organizations that provide medical services. These often provide the managed health care plans. Care coordinators work closely with team leaders, such as physicians or nurses, to ensure effective coordination and delivery of care to patients. They serve as a central point of contact, relaying important information, coordinating appointments, and facilitating the sharing of patient data and treatment plans among healthcare providers.

The managed health care organizations develop contracts with the insurers or self-insured employees, finances that delivers the health care using care provider network, products and specific services. It provides discounts in treatments.

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200 mL of a 0.105 M liquid contain 0.021 mole of potassium bromide.

Potassium Bromide, sometimes known as KBr, is a salt that is commonly used as an anticonvulsant and sedative. Other names for potassium bromide include Kalii bromidum, tripotassium tribromide, and bromide salt of potassium.

KBR provides the essential water and waste water treatment, networks, including management for efficiency and dependability, whether it's to serve agricultural and industrial demands or to supply drinking water. "KBR supplies the essential networks, administration, and wastewater and water treatment with efficiency and dependability."

Molarity (M) = moles of solute / liters of solution

moles of solute = Molarity x liters of solution

moles of \(Kbr = 0.105 mol/L*0.2L=0.021mol\)

Hence, in 200 mL of such a 0.105 M solution, there really are 0.021 moles with KBr (potassium bromide).

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2.50 g of helium gas at STP would occupy a volume of 14.0 liters.

Standard temperature and pressure (STP) conditions of 0°C and 1 atm, we can use the molar volume of a gas at STP, which is 22.4 L/mol.

1. Helium seems to have a molar mass of 4.00 g/mol.

Therefore, we can calculate the number of moles of helium as:

moles of He = mass of He divided by molar mass of He

= 2.50 g / 4.00 g/mol

= 0.625 mol

Then, we can use the molar volume of a gas at STP to calculate the volume of helium gas:

volume of He = moles of He x molar volume of gas at STP

= 0.625 mol x 22.4 L/mol

= 14.0 L

2.50 g of helium gas at STP would occupy a volume of 14.0 liters.

2. The molar mass of sodium is 22.99 g/mol. Therefore, we can calculate the number of moles of sodium as:

moles of Na = number of atoms of Na divided by Avogadro's number

= 5.0 x 10²⁵ atoms / 6.022 x 10²³ atoms/mol

= 83.0 mol

Then, we can use the molar mass of sodium to calculate the mass of sodium:

mass of Na = moles of Na x molar mass of Na

= 83.0 mol x 22.99 g/mol

= 1900 g

Therefore, 5.0 x 10²⁵ atoms of sodium have a mass of 1900 g.

3. The molar mass of Ni is 58.69 g/mol. Therefore, we can calculate the number of moles of Ni as:

moles of Ni = mass of Ni divided by molar mass of Ni

= 3.95 g / 58.69 g/mol

= 0.0673 mol

Then, we can use Avogadro's number to calculate the number of atoms of Ni:

number of atoms of Ni = moles of Ni x Avogadro's number

= 0.0673 mol x 6.022 x 10²³ atoms/mol

= 4.05 x 10²² atoms

Therefore, 3.95 g of Ni contain 4.05 x 10²² atoms.

4. The molar mass of Xe is 131.29 g/mol. Therefore, we can calculate the number of moles of Xe as:

moles of Xe = mass of Xe divided by molar mass of Xe

= 15 kg / 131.29 g/mol

= 114 mol

Then, we can use Avogadro's number to calculate the number of atoms of Xe:

number of atoms of Xe = moles of Xe x Avogadro's number

= 114 mol x 6.022 x 10^23 atoms/mol

= 6.87 x10²⁵ atoms

Therefore, a 15 kg sample of Xe gas contains 6.87 x 10²⁵ atoms.

5. A gas's molar volume at STP is 22.4 L/mol. Therefore, we can calculate the number of moles of Ar as:

moles of Ar = number of atoms of Ar divided by Avogadro's number

= 45,000,000 atoms / 6.022 x 10²³ atoms/mol

= 7.47 x 10⁻¹⁷ mol

Then, we can use the molar volume of a gas at STP to calculate the volume of Ar gas:

volume of Ar = moles of Ar x molar volume of gas at STP

= 7.47 x 10⁻¹⁷ mol x 22.4 L/mol

= 1.67 x  10⁻¹⁵ L

Therefore, 45,000,000 atoms of Ar would occupy a volume of 1.67 x 10⁻¹⁵ liters at STP.

6. The molar mass of CO₂ is 44.01 g/mol. Therefore, we can calculate the number of moles of CO₂ as:

moles of CO₂ = mass of CO₂ divided by molar mass of CO₂

= 75 g / 44.01 g/mol

= 1.70 mol

Then, we can use Avogadro's number to calculate the number of atoms of CO₂:

number of atoms of CO₂ = moles of CO₂ x Avogadro's number

= 1.70 mol x 6.022 x 10²³ atoms/mol

= 1.02 x 10²⁴ atoms

Therefore, a 75 g sample of CO₂ contains 1.02 x 10²⁴ atoms.

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Answer:

3000 N

Explanation:

The force of the car can be calculated using Newton's second law of motion, which states that the force acting on an object is equal to its mass multiplied by acceleration.

So, the force of the car can be calculated as follows:

Force = Mass * Acceleration

Force = 300 kg * 10 m/s^2

Force = 3000 N

Therefore, the force of the car is 3000 N.