What type of imf are between nonpolar covalent molecules? polar covalent molecules? ionic compounds? water?.

Average volume of NaOH solution dispensed: 9.03 mL.

The average number of moles of NaOH dispensed is 0.00200 moles. The average concentration of the acid is 0.080 mol/L.

The average number of moles of NaOH dispensed, we need the average volume of NaOH solution dispensed and the molarity (concentration) of the NaOH solution.

Average volume of NaOH solution dispensed: 9.03 mL

To find the average concentration of the acid, we need the volume of acetic acid used and the number of moles of NaOH used.

Volume of acetic acid used: 25 mL

Number of moles of NaOH used: 0.00200 moles

Since the balanced chemical equation for the reaction between acetic acid (CH₃COOH) and sodium hydroxide (NaOH) is:

CH₃COOH + NaOH -> CH₃COONa + H₂O

We can see that the stoichiometric ratio between acetic acid and NaOH is 1:1. This means that the number of moles of NaOH used is equal to the number of moles of acetic acid.

Therefore, the average number of moles of NaOH dispensed is 0.00200 moles.

To calculate the average concentration of the acid, we can use the equation:

Molarity (concentration) = moles/volume

Let's plug in the values:

Molarity = 0.00200 moles / 0.025 L (convert mL to L)

Molarity = 0.080 mol/L

Therefore, the average concentration of the acid is 0.080 mol/L.

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Answer:

protease is an enzyme

Explanation:

It hydrolyse peptide bonds of proteins and also called proteolytic enzymes.

The boiling point of liquid E is 30.5 °C at 1 atm (760.0 torr) if Its vapor pressure at -25.5 °C is 395 torr.

The ΔHvap for liquid E can be calculated by using Clausius-Clapeyron equation.

Where,ΔHvap is the enthalpy of vaporization,R is the universal gas constant;T1 is the boiling point temperature;T2 is the temperature at which the vapor pressure is known;p1 is the vapor pressure at T1;

p2 is the vapor pressure at T2By substituting the given values in the above equation,ΔHvap = - ((8.31 J/mol.K) * (303.65 K) * ln (395/760))= 40.7 kJ/mol.The ΔHvap for liquid E is 40.7 kJ/mol.

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Answer:

A. Do not change their energy level.

Explanation:

The process in which a solid changes directly to a gas is called sublimation. It occurs when the particles of a solid absorb enough energy to completely overcome the force of attraction between them. Dry ice (solid carbon dioxide, CO2) is an example of a solid that undergoes sublimation.

In order to demonstrate Brownian motion, some fine powdered charcoal is added to water. the suspension is viewed under a microscope and a Zig-Zag motion of particles is observed.

Zig-Zag motion of particles is observed when some fine powdered charcoal is added to water and the suspension is viewed under a microscope,

Brownian motion is a zig zag motion randomly of the particle. It is an uncontrolled movement of the particles in a given fluid here, water due to the collisions that occur constantly with the fast-moving particles present in the suspension.

Example of a Brownian motion is Diffusion wherein gas molecules adopt a random motion hitting each other constantly.

When the system if homogenous,then Brownian motion is not observed since the bombarding is uniformly constant.

In colloids or suspensions, Brownian motion is observed due to u=non-uniform bombarding.

Hence, the particles do not settle down and remain in the solution throughout preventing coagulation.

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C8 columns refer to chromatography columns that contain a stationary phase consisting of hydrocarbon chains with eight carbon atoms. c8 columns means none of the given options. The correct answer is (d) None of the above.

C8 columns refer to chromatography columns that contain a stationary phase consisting of hydrocarbon chains with eight carbon atoms. These carbon chains are typically covalently bonded to a solid support material.

The C8 designation represents the length and composition of the hydrocarbon chains in the stationary phase.

These columns are commonly used in chromatography techniques, such as reversed-phase liquid chromatography, where nonpolar compounds are separated based on their interactions with the hydrophobic stationary phase.

The C8 stationary phase provides moderate retention for analytes with different polarities, allowing for effective separation.

The statement about ionic bonding or the presence of a phenyl group is not applicable to C8 columns.

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Speed in excess of 100 km/h, which is 208.8 km / h

Linear motion consists of 2: constant velocity motion with constant velocity and uniformly accelerated motion with constant acceleration  

• An equation of uniformly accelerated motion  

\(\large {\boxed {\bold {x=xo+vo.t+\frac {1} {2} at ^ 2}}}\)

vt = vo + at  

vt² = vo² + 2a (x-xo)  

x = distance on t  

vo / vi = initial speed  

vt / vf = speed on t / final speed  

a = acceleration  

I think it's not chemistry but physics

Δx = 290 m

vf = 0⇒stop

Δt = 10 s

We use the formula in the question

\(\tt \Delta x=\dfrac{1}{2}(vf+vi)\Delta t\\\\290=\dfrac{1}{2}(0+vi).10\\\\vi=58~m/s=\boxed{\bold{208.8~km/h}}\)

The rules for assigning oxidation numbers are:

b) The O.N. for a monatomic ion is the same as its charge.

d) The sum of the oxidation numbers for the atoms in a neutral compound is zero.

Oxidation Number:

In chemistry, oxidation states or oxidation numbers are the virtual charges of atoms when all bonds to various atoms are completely ionic. It describes the degree of oxidation (loss of electrons) of atoms in a compound. Conceptually, the oxidation state can be either positive, negative, or zero. Although perfect ionic bonds do not occur naturally, many bonds exhibit strong ionic character, making the oxidation state a useful indicator of charge.

The oxidation state of an atom does not describe its "real" charge or any other real atomic property. This is especially true at high oxidation states where the ionization energy required to produce multiplying cations is much greater than the energy available for chemical reactions. Furthermore, the oxidation state of atoms in a given compound depends on the choice of electronegativity scale used in the calculations. Therefore, the oxidation state of atoms in a compound is just a formality. However, it is important to understand the naming conventions for inorganic compounds. Also, some observations about chemical reactions can be explained at a fundamental level in terms of oxidation states.

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R. F.M (Relative Formula Mass ) of Ca=40

40g of Ca=1 mole

204g of Ca=(1*204)/40

=5.1 moles

Answer:

Nitrogen has 5 valence electrons

Explanation:

nitrogen has it's attoms form triple bonds which are very hard to break

so non-reactive

The chemical that binds free hydrogen ions (H+) in a solution is called a base.

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a minimum of three seismograph stations are needed to find an earthquake's epicenter using the S-P time method.

Scientists use triangulation to find the epicenter of an earthquake. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. ... Knowing this helps them calculate the distance from the epicenter to each seismograph.

Explanation:

Answer:

Ca3(PO4)2 = P2O5 + CaO - Chemical Equation Balancer.

Explanation:

Answer:

Ca3(PO4)2

Explanation:

Edible mushrooms: Consuming edible mushrooms is safe and provides health advantages like fiber, vitamins, and minerals.

Non-Edible mushrooms: Mushrooms that cannot be eaten could be harmful or have unappealing flavors and textures that could be harmful if consumed.

Answer:

Molecular Formula  C5H8

Explanation:

Answer:

the escape velocity

Explanation:

To do this, your rock has to go very fast – more than 11 kilometers per second. This velocity is called the escape velocity, the speed an object must achieve in order to overcome the gravitational attraction of a celestial body (be it a planet, a star, or a galaxy) and escape into space

found it online, lol better then nothing

When \(CO_{2}\) and \(H_{2} CO_{3}\) are both horizontal lines, the rate of the forward reaction is the same as the rate of the reverse reaction. The reaction is occurring at equilibrium, with no net change in the concentrations of reactants and products over time.

When the concentration of carbon dioxide \(CO_{2}\) and the concentration of carbonic acid \(H_{2} CO_{3}\) are both horizontal lines, it indicates that their concentrations remain constant over time. In such a scenario, the rate of the forward reaction is the same as the rate of the reverse reaction. A horizontal line on a concentration-time graph suggests that the concentrations of the reactants and products are not changing, implying that the reaction has reached equilibrium. At equilibrium, the rate of the forward reaction equals the rate of the reverse reaction. This is a fundamental principle of chemical equilibrium, described by the principle of microscopic reversibility.

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Answer:

because that is the last group the ones before it are more reactive im sorry if this not what you were looking for.

The value of b in the equation \(\( f(t) = 85 \cdot b^t \)\) represents the decay factor of the radioactive substance. To determine the value of \( b \), we can use the information that the half-life of the substance is 21 years.

The half-life of a radioactive substance is the time it takes for half of the substance to decay. In this case, the half-life is 21 years, which means that after 21 years, the amount of the substance remaining will be half of the initial amount.

We can use this information to set up an equation:

\(\(\frac{1}{2} = b^{21}\)\)

To solve for b, we need to take the 21st root of both sides of the equation:

\(\(b = \left(\frac{1}{2}\right)^{\frac{1}{21}}\)\)

Using a calculator, we can evaluate this expression:

\(\(b \approx 0.965\)\)

Therefore, the value of b in the equation \(\( f(t) = 85 \cdot b^t \)\) is approximately 0.965.

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The ratio of the masses of carbon that combine with 1.00 g of oxygen between the two compounds is: 2.46, which we can round to 2.

To find the ratio of the masses of carbon that combine with 1.00 g of oxygen between the two compounds, we need to find the empirical formula for each compound.

First, find the number of moles of carbon in each compound:

Compound 1: 22.0 g C / 12.01 g/mol = 1.83 moles

Compound 2: 34.5 g C / 12.01 g/mol = 2.87 moles

Next, we need to find the ratio of moles of oxygen to moles of carbon for each compound. To do this, we need to find the molecular weight of each compound and divide it by the number of moles of carbon to find the number of moles of oxygen.

Compound 1: 80.5 g / (1.83 moles C) = 43.96 g/mol

Number of moles of O in compound 1: 43.96 g/mol / 16.00 g/mol = 2.75 moles

Compound 2: 80.5 g / (2.87 moles C) = 27.98 g/mol

Number of moles of O in compound 2: 27.98 g/mol / 16.00 g/mol = 1.75 moles

Finally, divide the moles of O in each compound by the moles of C in each compound to find the ratio of moles of O to moles of C:

Compound 1: 2.75 moles O / 1.83 moles C = 1.5

Compound 2: 1.75 moles O / 2.87 moles C = 0.61

So the ratio of the masses of carbon which

combine with 1.00 g of oxygen between the two compounds is:

1.5 / 0.61 = 2.46, which we can round to 2.

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Answer:

I believe it's ... North Africa and the Italian Peninsula

Answer:

The nucleus (center).

Explanation:

The atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged). Atoms have different properties based on the arrangement and number of their basic particles.

Hope this helped. :D

answer :

this is the structure if you want it

The molality of Na⁺ ions in the 6.29% by mass Na₂CO₃ solution is 1.05 mol/kg.


Molality is defined as the number of moles of solute per kilogram of solvent. In this case, the solute is Na₂CO₃  and the solvent is water.
First, we need to calculate the number of moles of Na₂CO₃  in 100 g of the solution:
Mass of Na₂CO₃  = 6.29 g
Moles of Na₂CO₃  = 6.29 g / 105.99 g/mol = 0.0593 mol
Next, we need to calculate the mass of water in 100 g of the solution:
Mass of water = 100 g - 6.29 g = 93.71 g
Finally, we can calculate the molality of Na⁺ ions:
Molality of Na⁺ ions = (0.0593 mol / 0.09371 kg) / 2 = 1.05 mol/kg
Note that we divided by 2 because Na₂CO₃ dissociates into two Na⁺ ions and one CO₃²⁻ ion.

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Therefore, the estimated energies of a proton in a 5.0 fm long box are approximately:

E1 = 1.808 x 10^-13 J

E2 = 7.234 x 10^-13 J

E3 = 1.631 x 10^-12 J

The allowed energies of a particle in a one-dimensional box are given by:

E = (n^2 * h^2) / (8 * m * L^2)

Where:

E is the energy of the particle

n is the quantum number (1, 2, 3, ...)

h is the Planck's constant (approximately 6.626 x 10^-34 J*s)

m is the mass of the particle (mass of a proton = 1.673 x 10^-27 kg)

L is the length of the box (5.0 fm = 5.0 x 10^-15 m)

For n = 1:

E1 = (1^2 * (6.626 x 10^-34 J*s)^2) / (8 * (1.673 x 10^-27 kg) * (5.0 x 10^-15 m)^2)

For n = 2:

E2 = (2^2 * (6.626 x 10^-34 J*s)^2) / (8 * (1.673 x 10^-27 kg) * (5.0 x 10^-15 m)^2)

For n = 3:

E3 = (3^2 * (6.626 x 10^-34 J*s)^2) / (8 * (1.673 x 10^-27 kg) * (5.0 x 10^-15 m)^2)

Now we can calculate the values:

E1 ≈ 1.808 x 10^-13 J

E2 ≈ 7.234 x 10^-13 J

E3 ≈ 1.631 x 10^-12 J

Therefore, the estimated energies of a proton in a 5.0 fm long box are approximately:

E1 = 1.808 x 10^-13 J

E2 = 7.234 x 10^-13 J

E3 = 1.631 x 10^-12 J

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Answer:

p-e-n

1- Na=11-11-12

2-Cl=17-17-29

3-Mg=12-12-12

4-O=8-8-8

Explanation:

chlorine is Cl

The PEN value for sodium, chlorine, magnesium, and oxygen is (11,11,12),(17,17,18),(12,12,12), (8,8,8) respectively

The atomic number(Z) is equal to the number of protons to equal to number of electrons.

The number of neutrons is equal to atomic mass minus the atomic number

n=A-Z

For Na, Z=11, p=e=11

The number of neutrons is 23-11=12

For Cl, Z=17, e=17

The number of neutrons is A-Z=35-17=18

For magnesium, Z=12, A=24

The number of neutrons is 24-12=12

For O, Z=8, p=e=8

The number of neutrons is 16-8=8

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The mesh appears to be coarse with large element sizes, resulting in a lower level of detail and accuracy in the analysis.

To improve the mesh, several steps can be taken. Firstly, refining the mesh by reducing the size of the elements will provide a higher level of detail and accuracy. This can be done by increasing the number of elements in the areas of interest, such as around holes, corners, or regions with high stress gradients.

Secondly, using different element types, such as quadratic or higher-order elements, can enhance the mesh quality and capture more accurately the behavior of the steel plate. Lastly, performing a mesh sensitivity analysis, where the mesh is gradually refined and the results are compared, can help identify the appropriate mesh density required for the desired level of accuracy in the analysis. This coarse mesh may lead to inaccurate stress and strain predictions, especially in areas with complex geometry or high stress concentrations.


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Answer:

A big bang occurred in the solar system as a resultof a fusion reaction.All matter I the solar system had been clumped together was shattered and sent flying. As new pieces of matter connected, all the celestial bodies the solar system were formed