Which main intermolecular force must be overcome to convert liquid nh3 to nh3 vapor?

A polymer is formed by a chemical process called polymerization. During polymerization, small molecules, called monomers, combine to form a large chain-like molecule. When you change the monomer, you can create a new polymer.

The given monomer is shown as C₀NCIHIDI₀C. The polymerization process produces a small molecule as well. The formula for the small molecule produced is (HCl).

The modification of monomers to create one repeat unit of the polymer are given below:

Step 1: Draw the structure of the given monomer, which is C₀NCIHIDI₀C.

Step 2: Identify the repeating unit in the structure. In this case, the repeating unit is C₀NCI.

Step 3: Write the repeating unit in brackets and add the subscript 'n' to show the number of repeating units in the polymer. So, the polymer will look like this: (C₀NCI)n.

Step 4: To show the bond between the repeating units, add a bond sign, which is usually '—'. Therefore, the polymer is represented as: (C₀NCI)n—.

The small molecule produced in the reaction is hydrogen chloride (HCl). HCl is formed due to the elimination of a hydrogen ion from one monomer and a chloride ion from another monomer. The chemical equation of this reaction is given below:

C₀NCIHIDI₀C → (C₀NCI)n + HCl

The formula for the small molecule produced is (HCl).

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The content that is a solid solute can be determined using the provided solubility curve by looking at the locations where the solubility curve crosses along the temperature axis.

The saturation point at which no more solute can dissolve in the solvent is represented on the supply solubility curve by the places where the curve crosses the temperature axis. At these saturation points the solute is in its solid state as its solubility in the particular solvent becomes maximum.

Based on the solubility curve, the solid solute content can be identified as follows: Substance A is a solid solute in the specified solvent because the solubility curve cuts the temperature axis at the point where it lies.

Therefore, the correct option is C.

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Answer:

27. Element (Because it contains all same atoms)

28. Compound (It contains atoms held together through chemical bonds)

29. Element (it contains all same atoms)

33. Mixture (It contains different atoms but they are not held together through chemical means)

34. Compound (Different atoms held together through chemical means)

35. Mixture (Mixture of elements and compounds)

30. Element (it contains all same atoms)

31. Mixture (Mixture of elements and compounds)

32. Element (Contain all same atoms although held together through chemical means they are not compounds)

The formula mass for BrN₃ is 121.925.

The formula mass for CCl₂F₂ is 120.913.

(a) To calculate the formula mass for BrN₃, follow these steps:
1. Determine the atomic mass of each element: Br = 79.904, N = 14.007
2. Multiply the atomic mass by the number of atoms in the compound: (1 × 79.904) + (3 × 14.007)
3. Add the masses together: 79.904 + 42.021 = 121.925

The formula mass for BrN₃ is 121.925.

(b) To calculate the formula mass for CCl₂F₂, follow these steps:
1. Determine the atomic mass of each element: C = 12.011, Cl = 35.453, F = 18.998
2. Multiply the atomic mass by the number of atoms in the compound: (1 × 12.011) + (2 × 35.453) + (2 × 18.998)
3. Add the masses together: 12.011 + 70.906 + 37.996 = 120.913

The formula mass for CCl₂F₂ is 120.913.

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When a compound is oxidized, one of its elements may experience a change in oxidation number.

Oxidation is the loss of electrons, so if an element loses electrons, its oxidation number increases. For example, in the compound H2O, the oxidation number of oxygen is -2 and the oxidation number of hydrogen is +1. If H2O is oxidized, the oxygen may gain electrons and its oxidation number will decrease.

At the same time, the hydrogen may lose electrons and its oxidation number will increase. This change in oxidation numbers is important in understanding chemical reactions and the transfer of electrons between molecules.

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Answer:

I dont even know what that even means

I hope you will find the answer

Answer:

Corrode substances; glass sodium magnicium calcium zinc

Answer:

C. periods

Explanation:

Horizontally the rows on the periodic table are called periods.

hope this helps you

have a good day :)

Answer:

2 metalliods....

1 metals

Answer:

0⁰c , 5 mmHg

Explanation:

Because at this temperature we all know water can be in state of both solid and liquid and when pressure is decreased it can be in form of gas too

Answer:

The balanced chemical equation for the combustion of propane is: C3H8(g)+5O2(g)→3CO2(g)+4H2O(g).

Explanation:

Answer:

chemical reaction if that is answer

Explanation:

The thermometer will read -10°C after about 2.43 minutes.

(a) After four more minutes, the thermometer will read -1°C.

This is because the temperature difference between the room and outdoors is (24 - (-11)) = 35°C.

The thermometer then rises 7°C in one minute, so the thermometer is heated at 7°C/minute, i.e. 35°C in five minutes.

So the temperature of the thermometer after 4 more minutes is 7°C + 7°C + 7°C + 7°C = 28°C, 28°C - 35°C = -7°C, -7°C - 3°C = -10°C.

Thus the reading on the thermometer will be -1°C after four more minutes.

(b) To find out when the thermometer will read -10°C, use the formula:

time = (temperature difference ÷ heating rate) + time to start

       = (-10°C - 7°C) ÷ 7°C/minute + 1 minute

       = -17°C ÷ 7°C/minute + 1 minute≈ -2.43 minutes

Thus, the thermometer will read -10°C after about 2.43 minutes.

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The given reaction is favored at relatively low temperatures, as it would require less energy and is more likely to proceed.

According to the values given, the reaction of CO₂(g) + H₂(g) → CO(g) + H₂O(g) has AH° = 41.2 kJ and AS° = 42.1 J/K.Now, the reaction can be endothermic or exothermic based on the sign of enthalpy change, which is positive, i.e. +41.2 kJ. A positive sign of enthalpy indicates that it is an endothermic reaction and energy is absorbed from the surroundings.

Hence, the reaction would be less favored at high temperatures, as per the Le Chatelier’s principle.

This means that, at high temperatures, the reaction would require more energy, which is the opposite of what it needs to proceed. Thus, the reaction is less likely to proceed at high temperatures.

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A 65.0 g sample of copper at 97.6 °C is added to 46.1 g of water at 20 °C, reaching a final temperature of 24.9 °C.

In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time.

A 65.0 g (m) sample of copper is cooled from 97.6 °C to 24.9 °C. Given that its specific heat (c) is 0.20 J/g.°C, we can calculate the heat (Q) lost using the following expression.

Q(Cu) = c(Cu) × m(Cu) × ΔT

Q(Cu) = (0.20 J/g.°C) × 65.0 °C × (24.9 °C - 97.6 °C) = -945 J

We will use the law of conservation of energy.

Qw + Q(Cu) = 0

Qw = -Q(Cu) = 945 J

We will use the same expression as in Step 1.

Qw = c(w) × m(w) × ΔT

m(w) = Qw / c(w) × ΔT

m(w) = 945 J / (4.18 J&g.°C) × (24.9 °C - 20 °C) = 46.1 g

A 65.0 g sample of copper at 97.6 °C is added to 46.1 g of water at 20 °C, reaching a final temperature of 24.9 °C.

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Solids are the most organized state of matter. States of matter change when energy is added or removed. Gas is the state of matter has the most movement of its particles.

The states of matter are the different forms of the matter in which it can exist. They are solids, liquids and gases. Solids are the states of matter in which molecules are very near to each other. They have fixed shape and volume. Liquids is the states of matter in which molecules are a little far from each other. They have different shape and fixed volume. Gas is the states of matter in which molecules are a very far from each other. They have different shape and different volume.

There are two more states of matter which are called as Plasma, Bose Einstein Condensate.

Plasma have highest energy and Bose Einstein Condensate have lowest energy.

Therefore, Solids are the most organized state of matter. States of matter change when energy is added or removed. Gas is the state of matter has the most movement of its particles.

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Answer:

Chemical reaction

Explanation:

This process is called a chemical reaction. A chemical reaction is where atoms are rearranged to create various compounds, so the atoms can either be formed or broken.

For example, in this equation for the formation of water:

2H2(g) + O2(g) → 2H2O(l)

Here hydrogen and oxygen both combine to form water. This new compound, water, that has formed is what makes it a chemical reaction.

In this equation for the decomposition of calcium carbonate:

CaCO3(s) → CaO(s)+ CO2(g)

Here, CaCO3 has been broken down into CaO and CO2, which takes place as a chemical reaction.

The half-life of a reaction is the time it takes for half of the initial concentration of the reactant to be consumed. The first three successive half-lives can be used to calculate the rate constant (k) of the reaction.

The first half-life (t1/2) is given as 48 min, which means that after 48 min, [A] = [A]0/2 = 2.0 M. The second half-life is 96 min, which means that after 96 min, [A] = [A]0/2^2 = 1.0 M. The third half-life is 192 min, which means that after 192 min, [A] = [A]0/2^3 = 0.5 M. The rate law for a first-order reaction is: rate = k[A], where [A] is the concentration of the reactant at any given time. The integrated rate law for a first-order reaction is: ln([A]t/[A]0) = -kt, where [A]t is the concentration of the reactant at time t.

Using the concentrations and times for the first three half-lives, we can set up the following equations:

ln(2.0 M/4.0 M) = -k(48 min)
ln(1.0 M/4.0 M) = -k(96 min)
ln(0.5 M/4.0 M) = -k(192 min)

Simplifying these equations, we get:
ln(1/2) = -k(48 min)
ln(1/4) = -k(96 min)
ln(1/8) = -k(192 min)

Now, we can use these equations to solve for k. Taking the first equation, we get:
ln(1/2) = -k(48 min)
k = -ln(1/2)/48 min
k = 0.0145 min^-1

Similarly, we can solve for k using the second and third equations:
k = 0.00723 min^-1
k = 0.00362 min^-1
Taking the average of these three values, we get:
k = (0.0145 + 0.00723 + 0.00362)/3
k = 0.00845 min^-1

Therefore, the rate constant (k) for the given reaction is 0.00845 min^-1.

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Answer:

This question lacks options, however, it can be answered based in general understanding. The answer is:

The carbon is released into the atmosphere and soil during decomposition

Explanation:

Carbon is an important element that makes up the biomass of living organisms. Organisms like plants as described in this question, store carbon as sugars, which they synthesized during photosynthesis. However, when they decompose/decay, they lose this carbon content.

Decomposition is the process carried out by microbes such as fungi, bacteria etc involving the breaking down of an organic molecule into inorganic ones. Hence, when leaves of a plant die, they undergo decomposition i.e. the carbon content in their leaves present as sugar (organic molecules) is broken down to release the carbon in form of carbon dioxide, into the atmosphere, soil etc. Hence, the carbon that is stored in leaves are RELEASED when they decay causing them to lose mass.

Answer:

one mole of carbon would have a mass of 12.011 grams

Answer:

One mole of Carbon would have a mass of 12.011 grams.

Explanation:

I hope I helped! :)

70.9-gram sample of \(Cl_{2}\) gas will occupy Opton C. 22.4 liters at STP.

To determine the volume occupied by the sample of \(Cl_{2}\) (g) at STP, we can use the ideal gas law equation, PV = nRT

where P = pressure

V = volume

n = number of moles

R = ideal gas constant

T = temperature.

At STP (Standard Temperature and Pressure), the pressure is 1 atmosphere (atm) and the temperature is 273.15 Kelvin (K).

First, calculate the number of moles of \(Cl_{2}\) (g) using its molar mass. The molar mass  \(Cl_{2}\) is 70.9 grams/mol.

Number of moles (n) = mass (m) / molar mass (M)

n = 70.9 g / 70.9 g/mol

n = 1 mol

Now, we can calculate the volume using the ideal gas law:

V = (nRT) / P

V = (1 mol * 0.0821 L·atm/mol·K * 273.15 K) / 1 atm

V ≈ 22.4 L

Therefore, the correct answer is C. 22.4 L.

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The predicted values for 0.88, 0.44, and 0.25 are approximately 0.7818, 0.4816, and 0.3500, respectively.

Vapor-liquid equilibrium (VLE) is a thermodynamic concept that describes the equilibrium between the vapor and liquid phases of a substance or a mixture.

It refers to the state where the rates of evaporation and condensation of a substance are balanced, resulting in a stable coexistence of vapor and liquid at a given temperature and pressure.

To find the quadratic interpolation spline for the given data, we can use Newton's divided difference formula. Let's calculate the divided difference table first:

\(x_i & f(x_i) & \Delta f(x_i) & \Delta^2 f(x_i) \\1.00 & 1.00 & & \\0.65 & 0.76 & -0.08 & \\0.34 & 0.47 & -0.05 & 0.015 \\0.00 & 0.00 &\)

The divided differences are calculated as follows:

\(\Delta f(x_i) &= f(x_{i+1}) - f(x_i) \\\Delta^2 f(x_i) &= \Delta f(x_{i+1}) - \Delta f(x_i)\)

Now, we can construct the quadratic interpolation spline using the divided differences:

\(P(x) &= f(x_0) + \Delta f(x_0)(x-x_0) + \Delta^2 f(x_0)(x-x_0)(x-x_1) \\&= 1.00 - 0.08(x-1.00) + 0.015(x-1.00)(x-0.65)\)

To evaluate how well the quadratic interpolation spline predicts the values for 0.88, 0.44, and 0.25, we substitute these values into the interpolation spline equation:

For \(\(x = 0.88\):\[P(0.88) = 1.00 - 0.08(0.88-1.00) + 0.015(0.88-1.00)(0.88-0.65) \approx 0.7818\]\)

For \(\(x = 0.44\):\[P(0.44) = 1.00 - 0.08(0.44-1.00) + 0.015(0.44-1.00)(0.44-0.65) \approx 0.4816\]\)

For\(\(x = 0.25\):\[P(0.25) = 1.00 - 0.08(0.25-1.00) + 0.015(0.25-1.00)(0.25-0.65) \approx 0.3500\]\)

So, the predicted values for 0.88, 0.44, and 0.25 are approximately 0.7818, 0.4816, and 0.3500, respectively.

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The pair of the species that is not the conjugate acid-base pair is the correct option is : H₂SO₄ and SO₄²⁻ .

The conjugate base for the sulfuric acid H₂SO₄ is as follows :

H₂SO₄    +  H₂O  ---->  H₃O⁺    +     HSO₄⁻

acid                                            conjugate base

All acids have the conjugate base and all bases have the conjugate acid. Acids are the substance which donates  H⁺ when they react. An acid and the base which are differ only by the presence or the absence of the proton are called as the conjugate acid-base pair.

Thus, H₂SO₄ and SO₄²⁻ is not the conjugate acid - base pair.

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The property of matter that is conserved in chemical reactions and shown by balanced equations is known as the Law of Conservation of Mass. According to this law, mass can neither be created nor destroyed in a chemical reaction; it can only be transformed from one form to another.For instance, when two substances are combined, they react and form a new substance.

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Answer:

The answer is - C. Sweat, tears, skin, and mucus membranes.

Explanation:

Answer:

its d

Explanation:

Model D shows a neutral atom of carbon as it has 6 protons in the nucleus and 6 electrons in it's orbits.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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Answer:

Your Answer would be Option B

Answer:

B

Explanation:

The Answer is B-Transfer of heat through direct physical contact

Answer:

so the number of molecules in 8 moles of water is 4.8176×10^24

Explanation:

number of moles=8moles

avogadro's number=6.022×10²³

number of molecules=?

as we know that

\(number of moles=\frac{number of molecules}{avogadro's number}\)

substituting the equation

number of moles × avogdro's number=number of molecules

number of molecules=8moles×6.022×10²³

number of molecules=4.8176×10^24

i hope this will help you :)

Answer:

what are the options?

Explanation:

In an ecosystem the urban heat island effect is caused by construction of tall buildings and concrete roads.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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Answer:

because they need only one electron