As the concentration of reacting particles increases, the rate of reaction generally

Pressure has little effect on the solubility of liquids and solids because they are almost incompressible. This statement is True. Solid solubility hardly gets affected by changes in pressure.

A substance's physical and chemical characteristics affect how soluble it is. A few other factors and circumstances can also influence it. A few of them are: temperature, pressure, type of binding, and forces between the particles.

Pressure has a significantly greater impact on gases than it does on solids and liquids. The likelihood of a gas's solubility also increases as its partial pressure rises. One instance of how CO2 is stored under high pressure is in a soda bottle.

In like, like dissolves.

Each molecule has a unique set of intermolecular forces and connections. The likelihood of solubility between two dissimilar compounds is less likely than that between like substances. For instance, ethanol is highly soluble in water, a polar solvent, whereas water is not.

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Answer:

P = 13.5 atm

Explanation:

Given that

No. of moles, n = 20 moles

Volume of nitrogen gas = 36.2 L

Temperature = 25°C = 298 K

We need to find the pressure of the gas. Using the ideal gas equation

PV = nRT

Where

R is gas constant, \(R=0.082057\ L-atm/K-mol\)

So,

\(P=\dfrac{nRT}{V}\\\\P=\dfrac{20\times 0.082057\times 298}{36.2 }\\\\P=13.5\ atm\)

so, the pressure of the gas is equal to 13.5 atm.

The titration would require the same amount of NaOH.

The number of moles of solute in a solution remains the same irrespective of the amount of water added to dilute the solution.

This is in accordance with the dilution law which says that the number of moles of a solution before dilution is the same as after dilution.

Thus, the amount of NaOH needed to neutralize the vinegar will remain the same for a complete reaction since the number of moles of solute in the vinegar has not changed.

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Answer:

Leucippus and Democritus

Explanation:

Hope this helps~ :D

Thank you so much! :D

Answer:

It's Simple earth just moves noob

Answer:

There are two main categories of mixtures: homogeneous mixtures and heterogeneous mixtures.

Answer:

homogenous mixture and heterogeneous mixture

Explanation:

this is the two mixtures

Answer:

1. The warming climate has dried out California's landscape, turning it into a tinderbox. ... This is due in part to climate change: rising temperatures, have an exponential impact when it comes to setting the stage for catastrophic wildfires,

2. Due to the heat and temperature of the place and if the place is very dry.

3. It all depends on the weather. At times there can be less rain whereas at time there is a lot of rain or how much heat it is outside within years

4. Well California is really hot during the summer and it becomes really dry so that is the reason forest fires are getting worse

First, we need to know this:

1 mol of Al2O3 = 101.96 g (Use your periodic table to get the molar mass of this compound)

For this particular exercise, we have 3 moles of the oxide, and we want to know how many grams the 3 moles represent.

Procedure:

1 mol of Al2O3 ----------- 101.96 g of Al2O3

3 moles of Al2O3 ----------- X

X = 305.88 g of Al2O3 = 306 g of Al2O3

Answer: The chemist needs to weigh out 306 g of Al2O3

Answer:

E

Explanation:

Look at bottom numbers.

90 → 88 + x

it means,

90=88+x

hence x = 2

it is also valid for top numbers.

230=226+y

y = 4

Answer:

Explanation:

The kinetic energy of an object can be found by using the formula

\(k = \frac{1}{2} m {v}^{2} \\ \)

m is the mass

v is the velocity

From the question we have

\(k = \frac{1}{2} \times 50 \times {1}^{2} \\ = 25 \times 1 = 25\)

We have the final answer as

Hope this helps you

Answer:

?? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

Answer:

Neither

Explanation:

because they aren't designed to be charged

The vapor pressure of a solution can be determined using Raoult's law. We find that the vapor pressure of the solution is 320 mmHg.

Raoult's law states that the vapor pressure of a component in a solution is directly proportional to its mole fraction in the solution. In this case, we are given the molar ratio of benzene to octane in the solution, which is 2:1.

The mole fraction (X) of a component is defined as the ratio of the number of moles of that component to the total number of moles in the solution.

Let's assume we have 2 moles of benzene and 1 mole of octane. The total number of moles in the solution would be 2 + 1 = 3 moles. Therefore, the mole fraction of benzene would be 2/3, and the mole fraction of octane would be 1/3.

According to Raoult's law, the vapor pressure of the solution (Psolution) can be calculated by adding the vapor pressure of each component multiplied by its mole fraction:

Psolution = Xbenzene * Pbenzene + Xoctane * Poctane

Given that the vapor pressure of benzene (Pbenzene) is 280 mmHg and the vapor pressure of octane (Poctane) is 400 mmHg, we can substitute these values into the equation: Psolution = (2/3) * 280 + (1/3) * 400

Simplifying the equation, we get:

Psolution = 560/3 + 400/3

= 960/3

= 320 mmHg

Therefore, the vapor pressure of the solution with a benzene to octane molar ratio of 2:1 is 320 mmHg.

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In the insoluble and soluble salt lab, the dropper bottles containing the anions to be studied were all phosphate salt solutions. The insoluble salt among iron, sodium, and phosphate is iron phosphate (FePO₄).

To determine the insoluble salt among the given options consider the following steps:

1. Identify the potential salts that can be formed by combining the given ions: iron phosphate (FePO₄) and sodium phosphate (Na₃PO₄).
2. Check the solubility rules for each potential salt. Generally, phosphate salts tend to be insoluble, with some exceptions like salts with Group 1 elements (e.g., sodium) and ammonium (NH₄⁺) ions.
3. Determine which salt is insoluble based on the solubility rules: iron phosphate (FePO₄) is insoluble, while sodium phosphate (Na₃PO₄) is soluble due to sodium being a Group 1 element.

In the insoluble and soluble salt experiment, iron phosphate (FePO₄) is the insoluble salt among sodium, phosphate, and iron.

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As a result of an oxidation - reduction reaction . The oxidizing agent changes as it gains electrons and gains potential energy.

Oxidation is defined as the loss of electrons. The reactant which undergo oxidation is act ad reducing agent, Reduction is the gain of electron. The reactant which undergo reduction will act as the oxidizing agent. so, oxidizing agents gains the electron. The reactant which accepts the electron is called as the oxidizing agent because it oxidize the another reactant.

Thus, As a result of an oxidation - reduction reaction . The oxidizing agent changes as it gains electrons and gains potential energy.

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a. The frequency  for visible light of 511 nm is 5.87 x 10¹⁴ Hz.

b. The wave number is 1.957 x 10³ cm⁻¹.

c. the photon energy is 3.89 x 10⁻¹⁹ J.

To determine the frequency the wavelength of visible light, we know that the speed of light (c) is given:

byc = λν

where λ is the wavelength and ν is the frequency of the light.

So, frequency,

ν = c/λ

= (3.0 x 10⁸ m/s) / (511 x 10⁻⁹ m)

ν = 5.87 x 10¹⁴ Hz

Wave number (˜) is the reciprocal of the wavelength (λ). Therefore, ˜ is given by;

˜ = 1/λ

= 1 / 511 x 10⁻⁹ m

= 1.957 x 10³ cm⁻¹

Photon energy (E) of a photon of light is given by;

E = hν

where h is the Planck's constant = 6.63 x 10⁻³⁴ J⋅s

E = hν

= 6.63 x 10⁻³⁴ J⋅s × 5.87 x 10¹⁴ Hz

E = 3.89 x 10⁻¹⁹ J

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The frequency for 511 nm visible light is 5.87 × 10¹⁴ Hz, the wave number is 1.957 × 10³ cm⁻¹, and the photon energy is 3.89 × 10⁻¹⁹ J.

To find the frequency of the wavelength of visible light, it is required that the speed of light (c) is given by:

c = λν

In which

λ =  wavelength

ν = the frequency of the light

So, the frequency is,

\(v = \frac{c}{\lambda}\)

= \(\rm (3.0 \times 10^8 \ m/s) / (511 \times 10^-^9 m)\)

\(v = 5.87 \times 10^1^4 \ Hz\)

The reciprocal of wavelength is the wave number. Consequently, is provided by;

= \(\frac{1}{\lambda}\)

= \(\frac{1}{511 \times 10^-^9\ m}\)

= 1.957 × 10³ cm⁻¹

Photon energy (E) of a photon of light is given by;

E = hν

In which h is the Planck's constant:

= 6.63 × 10⁻³⁴ J⋅s

E = hν

= 6.63 x 10⁻³⁴ J⋅s × 5.87 × 10¹⁴ Hz

E = 3.89 x 10⁻¹⁹ J

Thus, the frequency for 511 nm visible light is 5.87 × 10¹⁴ Hz, the wave number is 1.957 × 10³ cm⁻¹, and the photon energy is 3.89 × 10⁻¹⁹ J.

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Answer:

The chemical properties that make up paper are flammability, non flammability, decomposition, lack of decomposition at high temperatures.

Physical properties of paper sheets are determined by basis weight, thickness, density, two-sidedness, smoothness, permeability, handle, rigidity, roughness, and porosity, which in turn affect sheet properties of softness, hardness, compressibility, dimensional stability, curl, and strength

Explanation:

Option (b) is correct. The enthalpy change for the thermochemical equation, C (s) + ½O2(g) → CO2(g) is -99 KJ.

Hess's law states that the total heat changes occurring during a chemical reaction are independent of path.

Thermochemical equation are defined as the chemical equation which includes the term 'Heat' are referred to as thermochemical equations. The thermochemical equation include chemical equations for endothermic reactions and exothermic reaction. The thermochemical equations are,

C(s) + O2(g) → CO2(g),  ΔH = −393 kJ

CO(g) + ½O2(g) → CO2(g), ΔH = −294 kJ

Adding both the solution we get,

C (s) + ½O2(g) → CO2(g)

so, ΔH = 294 kJ - 393 kJ

           = -99 KJ

The standard enthalpy change of reaction for a chemical reaction can be defined as the the difference between total reactant and total product molar enthalpies calculated for substances in their standard states.

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The atomic ratio of carbon to oxygen in carbon monoxide (CO) is 1:1, and the atomic ratio of carbon to oxygen in carbon dioxide (CO₂) is 2:1.

Firstly, we can analyze the decomposition of carbon monoxide (CO) and carbon dioxide (CO₂) to determine the atomic ratios involved.

Let's denote the atomic ratio of carbon to oxygen in carbon monoxide as x, and the atomic ratio of carbon to oxygen in carbon dioxide as y.

According to the given data;

Decomposition of carbon monoxide (CO);

Oxygen produced = 3.36 g

Carbon produced = 2.52 g

We know that the atomic mass of carbon is 12 g/mol, and the atomic mass of oxygen is 16 g/mol. Using these values, we can calculate the number of moles for each element;

Number of moles of oxygen = mass / atomic mass = 3.36 g / 16 g/mol = 0.21 mol

Number of moles of carbon = mass / atomic mass = 2.52 g / 12 g/mol = 0.21 mol

Since the atomic ratio of carbon to oxygen in carbon monoxide is x, we can write the following equation;

0.21 mol C / (0.21 mol O) = x

Simplifying the equation, we have;

x = 1

Therefore, the atomic ratio of carbon to oxygen in carbon monoxide is 1:1.

Decomposition of carbon dioxide (CO₂);

Oxygen produced = 9.92 g

Carbon produced = 3.72 g

Following the same calculations as before;

Number of moles of oxygen = mass / atomic mass = 9.92 g / 16 g/mol = 0.62 mol

Number of moles of carbon = mass / atomic mass = 3.72 g / 12 g/mol = 0.31 mol

Since the atomic ratio of carbon to oxygen in carbon dioxide is y, we can write the following equation;

0.31 mol C / (0.62 mol O) = y

Simplifying the equation, we have;

y = 0.5

Therefore, the atomic ratio of carbon to oxygen in carbon dioxide is 1:0.5, which can be simplified to 2:1.

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--The given question is incomplete, the complete question is

"Missed this? watch kcv: atomic theory; read section 2.3. you can click on the review link to access the section in your text. carbon and oxygen form both carbon monoxide and carbon dioxide. when samples of these are decomposed, the carbon monoxide produces 3.36 g of oxygen and 2.52 g of carbon, while the carbon dioxide produces 9.92 g of oxygen and 3.72 g of carbon. Calculate the atomic ratio of carbon to oxygen in carbon monoxide, and carbon dioxide."--

Considering the ideal gas law, if 3.9 moles of propane are at a temperature of 48°C and are under 150.2 kPa of pressure, the volume is 69.25 L.

An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:

P×V = n×R×T

Where:

In this case, you know:

Replacing in the ideal gas law:

1.48236 atm×V = 3.9 moles× 0.082 (atmL)/(molK)× 321 K

Solving:

V = (3.9 moles× 0.082 (atmL)/(molK)× 321 K)÷ 1.48236 atm

V= 69.25 L

Finally, the volume is 69.25 L.

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Answer:

We can use the ideal gas law to solve this problem:

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 in Kelvin.

We need to convert the temperature to Kelvin by adding 273.15:

T = 25.0 + 273.15 = 298.15 K

Substituting the values:

(10 atm) (5.00 L) = n (0.08206 L·atm/mol·K) (298.15 K)

Simplifying:

n = (10 atm) (5.00 L) / (0.08206 L·atm/mol·K) (298.15 K)

n = 20.4 mol

Therefore, there are 20.4 moles of Argon in the tank.

Answer:

the fossils on some of the continents were in the same spots as fossils on other continents

Explanation:

tell me if i need to explain more. x

The species least likely to be produced when nitric acid reacts with a strong reducing agent such as zinc metal is N2O.

When nitric acid reacts with a strong reducing agent such as zinc metal, it undergoes a reduction reaction and is reduced to nitrogen oxide (NO) or nitrogen dioxide (NO2).

This is because nitric acid is a strong oxidizing agent and readily gives up its oxygen atoms to reduce other species. However, N2O is the least likely species to be produced because it is not a common intermediate in the reduction of nitric acid by reducing agents.

The reduction of nitric acid typically produces NO or NO2, which are more stable and common nitrogen oxide species. Therefore, N2O is not the expected product in the reduction of nitric acid by strong reducing agents such as zinc metal.

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D. He is not an electrolyte.

An electrolyte is a medium containing ions that is electrically conducting through the movement of those ions, but not conducting electrons. This includes most soluble salts, acids, and bases dissolved in a polar solvent, such as water. Upon dissolving, the substance separates into cations and anions, which disperse uniformly throughout the solvent. Solid-state electrolytes also exist. In medicine and sometimes in chemistry, the term electrolyte refers to the substance that is dissolved. Electrically, such a solution is neutral. If an electric potential is applied to such a solution, the cations of the solution are drawn to the electrode that has an abundance of electrons, while the anions are drawn to the electrode that has a deficit of electrons. The movement of anions and cations in opposite directions within the solution amounts to a current. Some gases, such as hydrogen chloride (HCl), under conditions of high temperature or low pressure can also function as electrolytes.[clarification needed] Electrolyte solutions can also result from the dissolution of some biological (e.g., DNA, polypeptides) or synthetic polymers (e.g., polystyrene sulfonate), termed "polyelectrolytes", which contain charged functional groups. A substance that dissociates into ions in solution or in the melt acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, magnesium, and phosphate in a liquid phase are examples of electrolytes.

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Answer:

40.7g

Explanation:

so mass = moles × mr( 6.94+16+1)

=1.7 × 23.94

= 40.698

so 3 S.F = 40.7 g

hope this helps :)

The energy absorbed as heat by 52 g of iron when heated from 295 K to 308 K is 304.2 J.

The  energy absorbed as heat by 52 g of iron when heated from 295 K to 308 K can be calculated using the equation:



q = mcΔT

where:
q = heat energy absorbed (in joules, J)
m = mass of the iron (in grams, g)
c = specific heat capacity of iron (0.449 J/g·K)
ΔT = change in temperature (in Kelvin, K)

Now, let's plug in the values and calculate the energy absorbed:

1. Determine the mass (m) of the iron: 52 g
2. Determine the specific heat capacity (c) of iron: 0.449 J/g·K
3. Calculate the change in temperature (ΔT): 308 K - 295 K = 13 K
4. Plug in the values into the formula: q = (52 g) × (0.449 J/g·K) × (13 K)

Calculating the heat energy absorbed (q):

q = 303.572 J

The energy absorbed as heat by the 52 g of iron when heated from 295 K to 308 K is 303.572 J.

The energy absorbed as heat by a substance can be calculated using its mass, specific heat capacity, and change in temperature. In this case, 52 g of iron absorbs 304.2 J of energy when heated from 295 K to 308 K.
To calculate the energy absorbed as heat by the 52 g of iron when heated from 295 K to 308 K, we can use the formula:

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Answer:

What is energy transformation? One type of energy can change into another type of energy. Energy transformation means the changing of energy from one type to another, e.g. from kinetic energy to electrical energy, or from potential energy to kinetic energy.

Explanation:

Answer:

It may seem a bit weird, but, I'm only doing this so that you can make that other person brainliest.

Explanation:

Answer: Sodium is made up of lots of salt.

Explanation:

Eating a lot of salt can cause your body to retain more water, which can show up on the scale as extra pounds. But we're not just talking about water weight here. High salt diets appear to be linked to higher body fat in particular, the kind of fat that accumulates around your middle.