0. Earth's rock is continually cycling through different states and locations. The diagram below shows the rock cycle. The labels for two processes are missing.
Weathering of
ROCKS at surface
IGNEOUS
ROCK
Uplin
SEDIMENTARY ROCK
METAMORIHIC ROCK
Melting
Which of these processes could be happening at the stage labeled 2?
o folding and mountain building
chemical changes due to heat and pressure
compaction and cementation of weathered sediments
subduction of an oceanic plate beneath a continental plate

Answer:  Volume =  0.01L

Explanation:

The density of a substance is given by; Density =  Mass / Volume.

In this question, Mass = 1000g, Volume = ? and Density = 100 Kg/L

For the units to be uniform, we convert 1000g to Kg = 1Kg

Therefore, Volume = Mass / Density =  1Kg / 100Kg/L = 0.01L

Answer:

the 3rd one is the answer

Answer:

Washing your hands with lemon juice does not have any beneficial effects.

Explanation:

washing with lemon juice does not protect against any major diseases.

According to the kinetic molecular theory, matter is composed of particles (atoms, molecules, or ions) that are in constant motion. The state of matter depends on the temperature, pressure, and the interaction between these particles.

In the solid state, particles are closely packed together, vibrating around fixed positions due to strong intermolecular forces. When a solid is heated, the particles gain kinetic energy and vibrate more intensely, which weakens the intermolecular forces. As a result, the solid undergoes a physical change and becomes a liquid. This process is called melting.

In the liquid state, particles have more freedom to move and slide past each other, but they are still held together by weaker intermolecular forces. When the liquid is heated further, the particles continue to gain kinetic energy, causing them to move even more rapidly. Eventually, the intermolecular forces are overcome, and the particles break away from each other, forming a gas. This process is called vaporization.

Hope this explanation helps you understand how matter transitions from solid to liquid and then to gas using the kinetic molecular theory.

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Answer:

Explanation:

The systematic name of the coordination compound [Ir(NH3)4Br2]Br is tetraamminedibromoiridium (III) bromide

Answer:

C)Mixtured

Explanation:

I know the answer

Answer:

D= 2g/mL

Explanation:

20g/10ml= 2g/mL

Answer:

Cr(NO3)3 (aq) +K3PO4 (s)

Explanation:

Answer: its C. and B.

Explanation:

hopes this helps

Answer:

Explanation:

Neutrons and protons are found in the nucleus of an atom. BUT unlike Protons (Positive charge/ P an P is how I remember it) or Electrons, which have a negative charge, Neutrons have zero charge which means they are neutral particles. (Neutral an Neutron both start with N.)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`

Good luck.

Lb.

Answer:

Neutron have neutral charge

There are approximately there are 0.000706 moles of chlorine gas in Tank B.

Tank A:

We can use the ideal gas law to find the number of moles of gas in Tank A.

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.

Since the tanks are sealed, we can assume that the pressure is constant and equal to atmospheric pressure. We also know the temperature (273 K) and the volume of the tank is not given, but we don't need it for this calculation.

Rearranging the ideal gas law to solve for n, we get:

n = PV/RT

Plugging in the values for Tank A:

n = (1 atm)(0.009 m^3)/((0.08206 L*atm/mol*K)(273 K))

n = 0.000339 mol

Therefore, there are 0.000339 moles of argon gas in Tank A.

Tank B:

Using the same method as above, we can find the number of moles of chlorine gas in Tank B.

n = PV/RT

Plugging in the values for Tank B:

n = (1 atm)(0.009 m^3)/((0.08206 L*atm/mol*K)(273 K))

n = 0.000706 mol

Therefore, there are 0.000706 moles of chlorine gas in Tank B.

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The given statement "over the last 400,000 years (and longer) carbon dioxide concentrations in the atmosphere have varied between 180-300 ppm (parts per million). use the internet to discover what the carbon dioxide concentration of the atmosphere is today" is true because of irrational human activities.

Over the last 400,000 years (and longer), carbon dioxide concentrations in the atmosphere have varied between 180-300 ppm (parts per million) based on ice core data. However, since the Industrial Revolution, human activities such as burning fossil fuels, deforestation, and land use changes have caused an increase in the concentration of carbon dioxide in the atmosphere.

According to the National Oceanic and Atmospheric Administration (NOAA), the current concentration of carbon dioxide in the atmosphere is approximately 414.66 ppm as of May 2021. This concentration is the highest it has been in at least 800,000 years, and the rate of increase is unprecedented in human history.

The increase in carbon dioxide concentration is a major contributor to global warming and climate change, which has numerous impacts on our environment and society, including sea level rise, more frequent and severe natural disasters, and changes in precipitation patterns. Reducing greenhouse gas emissions and transitioning to renewable energy sources are critical steps in mitigating the impacts of climate change.

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For a real gas to approach the properties of an ideal gas, the pressure should be low, the attraction between the molecules should be high, and temperature should be high.

Ideal gas conditions are:

         PV =nRT

The real gas conditions are:

       (P +αn²) (V - nb) = nRT

             V²

Thus, real gases behave ideally at high temperatures and low pressures.

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Answer:

1.This answer would be option A.

2. I think that would be 1350

Explanation:

The final temperature is \(110^{o}\)C.

Given that,

energy Q given = 350KJ

Boiling point = 373 K

Melting point = 273 K

Enthalpy of vaporization = 2,260 J/g  

Ice's latent heat of fusion (L f) is 334 J/g.

Solid's specific heat capacity: 2.11 J/ (g K)

Liquid's specific heat capacity: 4.18 J/ (g K)

Specific heat capacity (gas) = 2.08 J/(g K)

Specific heat capacity of water ( c w)=1cal/g ∘C

Mass of ice (m)=100g

Initial temperature of ice (T1)= -10∘C

final temperature of ice (T2)= x ∘C

Let the temperature of mixture be x

to find final temperature :

Q =mcΔT

350 KJ = 100×2.11×(x−(-10))

350 KJ = 100×2.11×(x−(-283))

x=110∘C

From the principle of calorimetry, final temperature of ice after heating is 110∘C.

What is principle of calorimetry ?

Heat is transmitted from the body with higher temperature to the body with lower temperature until thermal equilibrium is reached between them when two bodies of different temperatures (ideally a solid and a liquid) are placed in physical contact with one another .A higher body temperature causes the release of heat whereas a lower body temperature absorbs heat. The law of conservation of energy, which states that the total amount of heat lost by a hot body equals the total amount of heat acquired by a cool the body, as the calorimetry principle demonstrates.

Heat Lost = Heat Gained

Using the following formula, the heat transport in a system is determined.

Where

q is the measure of heat transfer

m is the mass of the body

C is the body's specific heat

Δt is the change in the temperature

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Answer:A molecule is composed of two elements. In general, the elements that combine to form binary molecular compounds are both nonmetals.

This contrasts with ionic compounds, which usually involve bonds between metal ions and nonmetal ions.

Explanation:

Answer:

air

Explanation:

you breathe ok carbon dioxide

Answer:

2H2(g]+O2(g]→2H2O(l]]. Notice that the reaction requires 2 moles of hydrogen gas and 1

Explanation:

a) the standard enthalpy of formation for the Cl- ions is -149.8 kJ/mol. b) the standard enthalpy of formation for the hydroxide ion (OH-) at 25°C is -342.0 kJ/mol.

(a) To calculate the standard enthalpy of formation (ΔfH°) for the Cl- ions, we can use the given information about the reaction enthalpy (ΔrH°) for the formation of H+ and Cl- ions from gaseous HCl.

The reaction is: HCl(g) → H+(aq) + Cl-(aq)

Since the enthalpy change (ΔrH°) for the reaction is given as -74.9 kJ/mol, it represents the sum of the standard enthalpies of formation for the products minus the standard enthalpy of formation for the reactant.

ΔrH° = ΣΔfH°(products) - ΔfH°(reactant)

For this reaction, the reactant is HCl(g), and the products are H+(aq) and Cl-(aq). The standard enthalpy of formation for H+(aq) is given as 0, so we can rewrite the equation as:

-74.9 kJ/mol = ΔfH°(H+(aq)) + ΔfH°(Cl-(aq)) - ΔfH°(HCl(g))

Plugging in the known values, we get:

-74.9 kJ/mol = 0 + ΔfH°(Cl-(aq)) - ΔfH°(HCl(g))

Since we want to find the standard enthalpy of formation for Cl-(aq), we isolate ΔfH°(Cl-(aq)):

ΔfH°(Cl-(aq)) = -74.9 kJ/mol + ΔfH°(HCl(g))

Substituting the given value of ΔrH° for the reaction:

ΔfH°(Cl-(aq)) = -74.9 kJ/mol + (-74.9 kJ/mol)

Simplifying the expression, we find:

ΔfH°(Cl-(aq)) = -149.8 kJ/mol

(b) To calculate the standard enthalpy of formation (ΔfH°) of the hydroxide ion (OH-) at 25°C, we can use the information about the standard enthalpy of neutralization (ΔH°n) between HCI and NaOH.

The neutralization reaction between HCI and NaOH is:

H+(aq) + OH-(aq) → H2O(l)

The enthalpy change for this reaction, ΔH°n, is given as -56.2 kJ/mol.

The standard enthalpy of formation of water (H2O) is -285.8 kJ/mol. Using this information, we can rewrite the equation as:

ΔH°n = ΣΔfH°(products) - ΣΔfH°(reactants)

-56.2 kJ/mol = 0 + ΔfH°(OH-(aq)) - (-285.8 kJ/mol)

Simplifying the expression, we find:

-56.2 kJ/mol = ΔfH°(OH-(aq)) + 285.8 kJ/mol

ΔfH°(OH-(aq)) = -56.2 kJ/mol - 285.8 kJ/mol

ΔfH°(OH-(aq)) = -342.0 kJ/mol

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Explanations:

(i) Moles for K

mass = 89.3% = 89.3g

Mol. mass K =39.0983g/mol

∴ n = mass/molmass

=89.3/39.0988

=2.28 moles

(ii) Moles for N

mass = 10.7% = 10.7 g

Mol. mass N =14.0067g/mol

∴ n = mass/molmass

=10.7g/ 14.0067g/mol

=0.76 moles

• K= 2.28 /0.76 = 2.9898240669737 ≈ 3

• N=0.76/0.76 = 1

Answer:

The answer is maybe B hope it helps

The substances which are made up of only one kind of particle and have a fixed or constant structure is defined as the pure substance. Here One block has a greater volume than the other block so that the blocks are composed of different substances. The correct option is B.

The amount of space occupied by any three dimensional solid is known as the volume. These solids can be a cube, a cuboid, a cone, a cylinder or a sphere. It is simply how much space an object or substance takes up.

It is possible to have the volume without mass, such as an enclosed vacuum. The capacity of a container is not necessarily the same as its volume. It is the interior volume of a vessel. If you measure the exterior dimensions of the container, its volume is greater than its capacity.

Here the blocks are composed of different substances is indicated by the difference in the volume of the blocks.

Thus the correct option is B.

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Answer:

C

Explanation:

Mitochondria provides energy (ATP) for cells to use

Nucleus provides genetic code (DNA)

Ribosomes assemble amino acids chains based on the DNA from nucleus to form proteins

Answer:

c

Explanation:

Two species can indirectly compete for the same resource even when they never come in contact with one another if they depend on the same resource but at different times.

An example of indirect competition is for example where two insect feeds on a certain plant during the day and another species feeds on the same plant during the night.

Indirect competition occurs when animals that use the same resource don't necessarily interact with one another, such as cheetahs that are active during the day and leopards that are active at night that shares a watering hole in a grassland savanna.

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nswerllo

Explanation:

It's important to note that without the specific values for Bgi, F, Nm, Bt, Eg, and We, we cannot provide the exact calculations. Make sure to input the appropriate values from the given data in order to obtain accurate results.

The given equation is used to calculate the initial oil in place (N) for the Conroe Field reservoir. The equation is:

N = Eo + BgiF + NmBtEgWe

Now, let's go through the steps to calculate the initial oil in place for the data points at 24 and 36 months.

(a) Calculation of initial oil in place for 24 months:

- Given data:
Eo = 150 (initial oil in place)
Bgi = (gas cap expansion factor)
F = (formation volume factor)
Nm = (formation volume factor)
Bt = (total FVF at time t)
Eg = (gas expansion factor)
We = (water influx)

Substituting the values into the equation:

N = 150 + BgiF + NmBtEgWe

(b) Calculation of the difference between the two methods:

To calculate the difference between two methods, you need to compare the values obtained using the equation for 24 and 36 months. Subtract the initial oil in place at 24 months from the initial oil in place at 36 months.

Difference = N(36 months) - N(24 months)

(c) Determining the appropriate value and explaining the reason:

To determine which value is appropriate, you need to compare the calculated initial oil in place for 24 and 36 months. Analyze the results and consider factors such as reservoir characteristics, production history, and other relevant data to make an informed decision on which value is more reliable.

It's important to note that without the specific values for Bgi, F, Nm, Bt, Eg, and We, we cannot provide the exact calculations. Make sure to input the appropriate values from the given data in order to obtain accurate results.

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Answer:

Answer and Explanation: To determine the number of moles of silver (Ag), we simply need to divide the number of atoms of Ag by the Avogadro's number, N , which is equal to 6.02 10 atoms of Ag per mole of Ag. Therefore, c) 6.3 moles of Ag are present in a sample of 3.8 10 atoms Ag.

The following could be used to sterilize objects such as medical devices:a. Ethylene oxide. Ethylene oxide (EtO) is an industrial chemical compound used in sterilization and fumigation.

It is commonly utilized to sterilize medical devices and surgical instruments that cannot be sterilized with conventional steam sterilization techniques. The ethylene oxide procedure, often known as EtO sterilization, involves exposing products to a certain concentration of ethylene oxide gas in a low-pressure chamber for a specified amount of time to achieve sterilization.

Ethylene oxide is an excellent sterilization option for items that may be damaged by heat or moisture, including medical implants, plastic containers, and packaging materials, as well as electronic instruments.The other options, such as silver nitrate, 100% alcohol, and orthophenylphenol are not typically used for the purpose of sterilizing medical devices and equipment. While silver nitrate is used in some medical applications, such as treating eye infections in newborns, it is not typically used as a sterilizing agent. Similarly, 100% alcohol is a disinfectant and can be used to clean surfaces, but it is not effective at sterilizing medical equipment.

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