name three states of matter and describe them in terms of kinetic energy

Answer:

Disturbance

Explanation:

I believe it is Disturbance because waves are normally caused by wind, and wind classifies as Disturbance.

To do this division, we can divide the power of ten and the leadin numbers separately:

Answer:

Explanation:

The estimated enthalpy of triple bonds between nitrogen in a nitrogen molecule is -315kJ/mole.

To estimate the enthalpy of the triple bond between nitrogen atoms in an N2 molecule, we can use the enthalpies of formation of N2 and the individual nitrogen atoms, which are listed in Appendix C.

The enthalpy of formation (ΔHf) of a substance is the change in enthalpy when one mole of the substance is formed from its constituent elements in their standard states (usually at 25°C and 1 atm). For example, the enthalpy of formation of N2(g) is defined as:

N2(g) → 2N(g) ΔHf = 946 kJ/mol

This means that it takes 946 kJ of energy to form one mole of N2 from its constituent nitrogen atoms.

On the other hand, the enthalpy change for breaking the N2 molecule into two nitrogen atoms is equal in magnitude but opposite in sign to the enthalpy of formation of N2, because breaking a bond requires energy input.

Therefore, we have: N2(g) → 2N(g) ΔHf = -946 kJ/mol

To estimate the enthalpy of the triple bond, D(N‚N), we can assume that breaking the N2 molecule into two nitrogen atoms requires breaking three equivalent bonds, each with the same bond energy. Therefore:

D(N‚N) = ΔHf/N2 ÷ 3

Substituting the values, we get:

D(N‚N) = (-946 kJ/mol)/3

D(N‚N) = -315 kJ/mol

Therefore, the estimated enthalpy of the triple bond between nitrogen atoms in an N2 molecule is -315 kJ/mol. This means that breaking the N2 molecule into two nitrogen atoms requires an input of 315 kJ of energy per mole of N2. Conversely, forming an N2 molecule from two nitrogen atoms releases 315 kJ of energy per mole of N2.

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According to the question, the [oh−] of a 0.38 m aniline ( c6h5nh2 ) solution is 1.3 x 10-5 M.

Aniline is an organic compound with the formula C₆H₅NH₂. It is a colorless, volatile and flammable liquid with a characteristic odor. Aniline is the simplest member of the aromatic amines family and is mainly used as a precursor to polyurethane and other industrial chemicals. It is also used as a dye and a chemical intermediate. Aniline can be prepared from nitrobenzene and ethylamine. It is a basic compound with a pKb of 4.6. It can be reacted with acids to form salts, and it is also capable of forming hydrogen bonds. Aniline is used in the production of pharmaceuticals, rubber, dyes and a variety of other industrial chemicals. Its toxicity has made it the subject of regulatory control. Its derivatives, especially those containing nitro groups, are dangerous and can be explosive.

The [OH-] of a 0.38 M aniline (C₆H₅NH₂) solution can be calculated using the following equation: [OH-] = sqrt(Kb x [C₆H₅NH₂])

[OH-] = sqrt(3.9 x 10-10 x 0.38)

[OH-] = 1.3 x 10-5 M

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Answer:

B

Explanation:

add a subscript of 4 after the O

I just took this quiz

The next step Sebastian will take after identifying the chemical symbols is add a subscript of 4 after the O.

The chemical formula of a compound shows the arrangement of the constituent atoms in that compound.

According to this question, Sebastian wants to write the chemical formula for phosphorus tetraoxide. He initially identifies the chemical symbols as P and O.

The next step for Sebastian to take is add a subscript of 4 after the O to make the PO4 chemical formula.

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Answer:

deez nuets

Explanation:

bf gm Jr rj if dl if did fll j fll kd golf du is no u to

Here is a MATLAB code that calculates and plots the concentration profiles of NH ₃, NH₄+, NO₂-, and NO₃- as a function of time at T=298 K and neutral pH, given the rate constants and initial concentrations:

```matlab

% Rate constants (k) and initial concentrations ([C])

k1 = 0.1;   % Rate constant for NH₃ + H₂O₂ -> NH₂ + H₂O

k2 = 0.05;  % Rate constant for NH₂ + NO₃- -> NO₂- + H₂O

k3 = 0.08;  % Rate constant for NO₂- -> NO₃- + N₂

C_NH₃ = 1.0;    % Initial concentration of NH₃

C_H2₂O₂ = 0.5;   % Initial concentration of H₂O₂

C_NH₄ = 0.0;    % Initial concentration of NH₄+

C_NO₂ = 0.0;    % Initial concentration of NO₂-

C_NO₃ = 0.0;    % Initial concentration of NO₃-

% Time vector

t = 0:0.1:10;   % Time range from 0 to 10 with a step size of 0.1

% Calculation of concentrations at each time point

for i = 1:length(t)

   NH₃(i) = C_NH₃ * exp(-k1*t(i));

   NH₄(i) = C_NH₃ - NH₃(i);

   NO₂(i) = C_NO₂ + k₂ * (NH₄(i) - C_NH₄) * t(i);

   NO₃(i) = C_NO₃ + k₃ * NO₂(i) * t(i);

end

% Plotting concentration profiles

plot(t, NH₃, 'r-', t, NH₄, 'g-', t, NO₂, 'b-', t, NO₃, 'm-');

xlabel('Time');

ylabel('Concentration');

legend('NH₃', 'NH₄+', 'NO₂-', 'NO₃-');

```

The provided MATLAB code calculates and plots the concentration profiles of NH₃, NH₄+, NO₂-, and NO₃- as a function of time based on the given rate constants and initial concentrations. The code uses a time vector to define the time range for which the concentrations will be calculated.

Inside the for loop, the concentrations of NH₃, NH₄+, NO₂-, and NO₃- are calculated at each time point using the given rate constants and the previous concentrations. The concentration of NH₃ decreases exponentially over time due to the reaction NH₃ + H₂O₂ -> NH₂ + H₂O, where k1 is the rate constant. NH₄+ concentration is the difference between the initial NH₃ concentration and the current NH₃ concentration.

The concentration of NO₂- increases with time due to the reaction NH₂ + NO₃- -> NO₂- + H₂O, where k₂ is the rate constant. The change in NH₄+ concentration from its initial value is multiplied by k₂ and the time to calculate the increase in NO₂- concentration.

Finally, the concentration of NO₃- increases with time due to the reaction NO₂- -> NO₃- + N₂, where k₃ is the rate constant. The previous NO₂- concentration is multiplied by k₃ and the time to determine the increase in NO₃- concentration.

The resulting concentration profiles are then plotted using the plot function, with time on the x-axis and concentration on the y-axis. Each compound is represented by a different color line in the plot.

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According to OSHA, operating room personnel should not be exposed to more than 25 parts per million (ppm) of a halogenated agent if nitrous oxide is also used.

Halogenated agents are commonly used as anesthesia during surgical procedures, and can include substances such as halothane, isoflurane, and sevoflurane. Nitrous oxide, also known as laughing gas, is another commonly used anesthetic. Exposure to high levels of these agents can lead to health problems for operating room personnel, including respiratory and neurological issues. OSHA has established guidelines to ensure the safety of workers in healthcare settings, and compliance with these guidelines is important for protecting the health of both workers and patients. It is important for healthcare facilities to monitor levels of halogenated agents and nitrous oxide in operating rooms to ensure that they are within safe limits, and to provide appropriate protective equipment and training for personnel to minimize exposure.

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Answer:

B. reactants              

The moles of oxygen gas occupy a 300 ml container at 2.0 atm and 125 degrees Celsius is 0.018 moles.

To calculate the number of moles of oxygen gas occupying a 300 ml container at 2.0 atm and 125 degrees Celsius, we can use the ideal gas law equation:

PV = nRT

P is the pressure of the gas (in atmospheres)

V is the volume of the gas (in liters)

n is the number of moles of the gas

R is the ideal gas constant (0.0821 L atm/(mol K))

T is the temperature of the gas (in Kelvin)

First, let's convert the given temperature from Celsius to Kelvin:

T = 125 degrees Celsius + 273.15 = 398.15 K

Next, we need to convert the volume from milliliters to liters:

V = 300 ml / 1000 ml/L = 0.3 L

Now we can rearrange the ideal gas law equation to solve for the number of moles (n):

n = (PV) / (RT)

Substituting the given values:

n = (2.0 atm * 0.3 L) / (0.0821 L atm/(mol K) * 398.15 K)

n = 0.018

Therefore, the number of moles of oxygen gas occupying the 300 ml container at 2.0 atm and 125 degrees Celsius is approximately 0.018 moles.

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Answer:

5 atoms

Explanation:

there is 1 carbon atom and 4 hydrogen atoms

Answer:

Electrons in their outer shell

Explanation:

They have similar properties they have the same number of electrons in their outermost shell.

Answer:

Iffdldzdosodolzf cvbvxhmnvhihsoszüf

Liquid is the states that the particles of matter are close to each other but still able to flow past each other.

A form of matter known as a liquid has special properties that make it less stiff than a solid but more rigid than a gas. Unlike a solid, which has a defined shape, a liquid can flow. In comparison, a real fluids on the shape of the container it is kept in. There is a definite loudness to it. Although being free to move over one another, particles are nevertheless drawn toward each other.

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Answer:

time taken to cook on the pressure cooker = 100 seconds = 1.67 mins

Explanation:

The process of destroying tissue by electricity, freezing, heat, or corrosive chemicals is called "ablation."

Ablation is a medical technique that involves the controlled destruction of tissue for therapeutic purposes. It can be achieved through various methods, including:
1. Electricity - Electrocautery or radiofrequency ablation use electrical currents to generate heat that destroys the target tissue.
2. Freezing - Cryoablation uses extreme cold to freeze and destroy the tissue.
3. Heat - Thermal ablation, such as laser ablation or microwave ablation, uses high temperatures to damage and destroy the tissue.
4. Corrosive chemicals - Chemical ablation involves injecting a chemical agent directly into the tissue to cause necrosis (cell death).

Ablation is an effective technique used in various medical treatments to remove or destroy unwanted tissue. It can be performed using different methods like electricity, freezing, heat, or corrosive chemicals, depending on the specific requirements of the procedure.

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Here is  the pairing of elements with their respective electron behaviors:

Electron loss and electron gain refer to the transfer of electrons between atoms during chemical reactions, specifically in the formation of chemical bonds.

Electron loss and electron gain are fundamental processes in chemical reactions, as they allow atoms to achieve a more stable electron configuration by attaining a full valence shell, similar to the noble gases. This transfer of electrons leads to the formation of ionic bonds between positively and negatively charged ions or can contribute to the formation of covalent bonds by sharing electrons between atoms.

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Answer:

A weak acid is an acid which dissociates partially to release few hydrogen protons or ions

Explanation:

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The appropriate number of significant figures in the result of 15.234 – 15.208 is false because Significant figures are a way of representing a certain number of significant digits that are used to give an accurate representation of the result of a calculation.

In this particular example, the answer of 15.234 - 15.208 is 0.026. The correct number of significant figures in the result of this calculation is three, not four. The significant figures in a number are the digits that carry meaning and can be used to describe the accuracy of the number. In this case, the first two digits “15” are the same number and, therefore, do not carry any significance.

The last two digits “.23” and “.20” are significant because they are different and are the only digits that carry meaning. When performing calculations, it is important to pay attention to the number of significant figures in the result. For example, when subtracting two numbers, the result can be no more precise than the least precise number used in the calculation. In this case, the least precise number is 15.208, so the result should only have two significant digits.

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Answer:

Atomic number

Explanation:

Because atomic number is unique for each element and never changes

Answer: The answer is probably B because most of the precipitation and evaporation in the water cycle happens over the oceans. Including, about 78 percent of the precipitation and 86 percent of evaporation.

The statement about the ocean is true is most evaporation and precipitation in the water cycle occur over the ocean. Therefore, option 2 is correct.

The continual movement of water on, above, and below the Earth's surface is referred to as the water cycle, also known as the hydrologic cycle or the hydrological cycle.

The water cycle is composed mostly of four processes: evaporation, convection, precipitation, and collection. When water in rivers, lakes, or the ocean is heated by the sun and turned into vapour or steam, this process is known as evaporation. The river, lake, or ocean releases water vapor or steam into the atmosphere.

The hydrologic cycle is crucial because it determines how water gets to people, plants, and other species. In addition to supplying water for people, animals, and plants, it also transports nutrients, diseases, and sediment into and out of aquatic habitats.

Thus, option 2 is correct.

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a.)  The Volume of water displaced is  3 ml

b.)  The final density of the mineral is 4.1 g/ml.

(a) The volume of water displaced is the ratio of the volume containing mineral to the volume excluding mineral.

Volume of water displaced = Volume with mineral - Volume without mineral

Volume of water displaced = 53 ml - 50 ml

Volume of water displaced = 3 ml.

(b) The following formula can be used to determine the mineral's density:

Mass / Volume equals density.

The difference between the mass of the mineral and the mass without the mineral is the mass of the mineral.

Mass of mineral = Mass with mineral - Mass without mineral

Mass of mineral = 12.3 g - 0 g (since the mass without mineral is not given)

Mass of mineral = 12.3 g

By deducting the volume without the mineral from the volume with, one may determine the volume of the mineral.

Volume of mineral = Volume with mineral - Volume without mineral

Volume of mineral = 53 ml - 50 ml

Volume of mineral = 3 ml

Therefore, the density of the mineral is:

Density = Mass of mineral / Volume of mineral

Density = 12.3 g / 3 ml

Density = 4.1 g/ml

Therefore, the final density of the mineral is 4.1 g/ml.

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1.15 ATM is equivalent to 874 mmHg (millimeters of mercury) of pressure.

To change 1.15 ATM of strain over completely to its comparable in millimeters of mercury, we can utilize the transformation factor that relates ATM to mmHg:

1 ATM = 760 mmHg

Increasing 1.15 ATM by the transformation factor gives:

1.15 ATM * 760 mmHg/1 ATM = 874 mmHg

Accordingly, 1.15 ATM of strain is comparable to 874 mmHg of tension.

To communicate the tension mathematically in millimeters of mercury, we essentially express the worth of the strain as 874 mmHg. This implies that the tension is multiple times more noteworthy than the standard climatic strain adrift level, which is 760 mmHg.

It is essential to take note of that tension can be communicated in various units relying upon the specific circumstance, however the change factor among ATM and mmHg is generally utilized in numerous logical and clinical applications.

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Answer: Ionic attractions

Explanation:

Ionic bonding is a type of chemical bond that involves the electrostatic attraction between oppositely charged ions.

The isotope symbol that fits each description is as follows: 68 neutrons, 47 electrons is Ag b. mass number = 197, 79 electrons is Au c. atomic number = 86, 136 neutrons is Rn d. atomic number = 76, mass number = 192 is Os.

Isotopes are two or more atom types that share the same atomic number (number of protons in their nuclei), location in the periodic table, and chemical element but have distinct nucleon numbers (mass numbers) as a result of having a different number of neutrons in their nuclei. Although the chemical properties of each isotope of a given element are nearly identical, they differ in their atomic weights and physical characteristics.

The name "isotope" refers to the fact that different isotopes of the same element occupy the same location on the periodic table. The word "isotope" is derived from Greek origins that mean "the same place".

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Al, Si, and P are the elements listed in decreasing order of atomic covalent radii.

Rb > Sc > Ge > Si > S > Ne is the order of the given elements in decreasing order of atomic radius. On the periodic table, the biggest elements are located below and farther to the left. This is the atomic size periodic trend.

The ionization energy drops as one descends a certain group in the periodic table. For instance, in group I, the decreasing sequence of the ionization energies is Li > Na > K > Rb > Cs.

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Answer:

90.35 × 10²³ atoms

Solution:

1 molecules of H20 contains 3 atoms,.

And we know that one mole of any molecule contains 6.023 × 10²³ atoms from Avogadro's number,

hence 5 moles of H20 will contain = 5× 6.023 × 10²³ × 3 atoms = 90.35 × 10²³ atoms!

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A balanced equation obey the law of conservation of mass, the mass can neither be converted nor  be destroyed but can converted from one form to another. Here the given reaction indicates Haber process.

The ratio of the product of concentrations of the products to that of the reactants is also known as the concentration quotient and it is denoted as Q. At equilibrium Q becomes equal to the equilibrium constant.

The Haber process is:

N₂ + 3H₂ → 2NH₃

Q = [NH₃]² / [N₂] [H₂]³

Q = [0.0596]² / [0.600] [0.420]

Q = 0.014

Here Q is less than K, so the reaction proceeds in the forward direction.

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