Give an example for each describing how energy and matter transfer between stages of the carbon cycle:Chemical energy:Mechanical energy:Thermal energy:Electrical energy:

The temperature of the gas when the volume increase from 0.67 L to 1.37 L is  471.29 °C.

Temperature is the hotness or coldness of a thing or place.

To calculate the temperature in Celsius when the volume increase, we use the formula below.

Formula:

Where:

From the questuion,

Given:

Substitute these values into equation 1

Hence, the final temperature of the gas is 471.29 °C.

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Answer:

icicle becausit sounds right

Explanation:

icicles because it sounds right

Magnesium fluoride is the name of the ionic substance that results from the union of magnesium and fluoride ions. The compound has the chemical formula MgF2 Mg F 2.

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Answer:

metallic bonding

Explanation:

Copper wire consists of Cu nuclei (that are positively charged due to the positively charged protons) that are surrounded by a "sea" of delocalized electrons (that are negatively charged that move freely throughout the material which is known as metallic bonding.

Answer:

Metallic bonding.

Explanation:

Pure copper is neither covalent nor ironic. It is a bonding called metallic bonding.

Answer:

A. The neutrons and electrons are in the wrong place.

Explanation:

The atom's nucleus contains both protons and neutrons, whilst the electrons are arranged in shells around the nucleus.

When the pressure is doubled and the temperature increases to 500 K, the volume of the fluorine gas is approximately 497 mL.

To determine the volume of fluorine gas when the pressure is doubled and the temperature increases, we can use the combined gas law. The combined gas law equation relates the initial and final states of a gas under different conditions. It can be written as:

(P1 × V1) / (T1) = (P2 × V2) / (T2)

Given:

P1 = 2 atm

V1 = 410 mL

T1 = 206 K

P2 = 2 atm × 2 = 4 atm (pressure is doubled)

T2 = 500 K (temperature increases)

We need to find V2, the final volume.

Substituting the given values into the combined gas law equation, we have:

(2 atm × 410 mL) / (206 K) = (4 atm × V2) / (500 K)

Cross-multiplying and simplifying the equation, we get:

(2 atm × 410 mL × 500 K) = (4 atm × V2 × 206 K)

Now, we can solve for V2:

V2 = (2 atm × 410 mL × 500 K) / (4 atm × 206 K)

V2 ≈ 497 mL

Therefore, when the pressure is doubled and the temperature increases to 500 K, the volume of the fluorine gas is approximately 497 mL.

It's important to note that we assumed the gas behaves ideally and followed the combined gas law equation. In reality, deviations from ideal gas behavior can occur at high pressures or low temperatures, so the calculated value is an approximation based on the ideal gas law..

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Paper used as a writing material is made of pulp (wood).

Paper is a sheet material used for writing on or printing on (or as a non-waterproof container), usually made by draining cellulose fibres from a suspension in water.

Paper is made from cellulose found in trees, which are the main source of cellulose fibre (or woodpulp). Besides woodpulp, paper can be made from other materials such as cotton, flax, esparto, straw, hemp, manilla and jute.

Wood pulp is usually a softwood, used for pulping to make paper.

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Answer:

try this

Explanation:

I searched it but I don't know

Answer:

when 445 grams of H2O are reacted, 4,300 grams (or 4.3 kilograms) of MnO2 are produced.

Explanation:

The balanced chemical equation for the reaction is:

16H+ (aq) + 2MnO4- (aq) + 10Br- (aq) → 2MnO2 (s) + 5Br2 (aq) + 8H2O (l)

According to the equation, 2 moles of MnO4- react to produce 2 moles of MnO2. Therefore, we need to find out the number of moles of MnO4- that react with the given amount of H2O and then use stoichiometry to calculate the number of moles of MnO2 produced.

First, let's calculate the number of moles of H2O:

mass of H2O = 445 g

molar mass of H2O = 18.015 g/mol

number of moles of H2O = mass/molar mass = 445 g/18.015 g/mol = 24.7 mol

From the balanced equation, we can see that 1 mole of H2O reacts with 2 moles of MnO4-. Therefore, the number of moles of MnO4- required to react with 24.7 mol of H2O is:

number of moles of MnO4- = 2 × number of moles of H2O = 49.4 mol

Since 2 moles of MnO4- produce 2 moles of MnO2, we can say that 1 mole of MnO4- produces 1 mole of MnO2. Therefore, the number of moles of MnO2 produced is also 49.4 mol.

Finally, we can calculate the mass of MnO2 produced:

mass of MnO2 = number of moles of MnO2 × molar mass of MnO2

mass of MnO2 = 49.4 mol × 86.94 g/mol = 4,300 g

Therefore, when 445 grams of H2O are reacted, 4,300 grams (or 4.3 kilograms) of MnO2 are produced.

The following are categorized into polar or nonpolar molecules:

a) Beryllium chloride (BeCl₂) is a nonpolar molecule. The Be-Cl bond is polar due to the electronegativity difference between beryllium and chlorine, but the molecule is linear with the two polar bonds pointing in opposite directions, resulting in a net dipole moment of zero.

b) Hydrogen sulphide (H₂S) is a polar molecule. The H-S bond is polar due to the electronegativity difference between hydrogen and sulfur, and the molecule has a bent shape, resulting in a net dipole moment that is not zero.

c) Sulphur trioxide (SO₃) is a nonpolar molecule. The S-O bonds are polar due to the electronegativity difference between sulfur and oxygen, but the molecule is trigonal planar with the three polar bonds pointing in different directions, resulting in a net dipole moment of zero.

d) Water (H₂O) is a polar molecule. The H-O bond is polar due to the electronegativity difference between hydrogen and oxygen, and the molecule has a bent shape, resulting in a net dipole moment that is not zero.

e) Trichloromethane (CHCl₃) is a polar molecule. The C-Cl bonds are polar due to the electronegativity difference between carbon and chlorine, and the molecule has a tetrahedral shape, resulting in a net dipole moment that is not zero.

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In the J = 0 state, the BrF molecule does not undergo any revolutions per second. In the J = 1 state, it undergoes approximately 0.498 revolutions per second, and in the J = 10 state, it undergoes approximately 15.71 revolutions per second.

To calculate the rotational constant B, we can use the formula:

B = 1 / (2 * π * Δν)

Where:

B = rotational constant

Δν = spacing between consecutive lines in the rotational spectrum

Given that the spacing between consecutive lines is 0.71433 cm^(-1), we can substitute this value into the formula:

B = 1 / (2 * π * 0.71433 cm^(-1))

B ≈ 0.079 cm^(-1)

The moment of inertia (I) of the molecule can be calculated using the formula:

I = h / (8 * π^2 * B)

Where:

h = Planck's constant

Given that the value of Planck's constant (h) is approximately 6.626 x 10^(-34) J·s, we can substitute the values into the formula:

I = (6.626 x 10^(-34) J·s) / (8 * π^2 * 0.079 cm^(-1))

I ≈ 2.11 x 10^(-46) kg·m^2

The bond length (r) of the molecule can be determined using the formula:

r = sqrt((h / (4 * π^2 * μ * B)) - r_e^2)

Where:

μ = reduced mass of the molecule

r_e = equilibrium bond length

To calculate the wavenumber (ν) of the J = 9+ to J = 10 transition, we can use the formula:

ν = 2 * B * (J + 1)

Substituting J = 9 into the formula, we get:

ν = 2 * 0.079 cm^(-1) * (9 + 1)

ν ≈ 1.58 cm^(-1)

To determine the most intense spectral line at room temperature (300 K), we can use the Boltzmann distribution law. The intensity (I) of a spectral line is proportional to the population of the corresponding rotational level:

I ∝ exp(-E / (k * T))

Where:

E = energy difference between the levels

k = Boltzmann constant

T = temperature in Kelvin

At room temperature (300 K), the population distribution decreases rapidly with increasing energy difference. Therefore, the transition with the lowest energy difference will have the most intense spectral line. In this case, the transition from J = 0 to J = 1 will have the most intense spectral line.

To calculate the number of revolutions per second, we can use the formula:

ω = 2 * π * B * J

Where:

ω = angular frequency (in radians per second)

J = rotational quantum number

For J = 0:

ω = 2 * π * 0.079 cm^(-1) * 0 = 0 rad/s

For J = 1:

ω = 2 * π * 0.079 cm^(-1) * 1 ≈ 0.498 rad/s

For J = 10:

ω = 2 * π * 0.079 cm^(-1) * 10 ≈ 15.71 rad/s

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Answer:315 - 282 = 173?

Explanation:

It would be more accurate to say that all stars produce some elements, but not all elements are produced by all stars. While it is true that many elements are produced by stars through the process of nuclear fusion, not all elements are created by all stars.

For example, the heaviest elements such as gold and platinum are formed through a process called neutron capture, which occurs during supernova explosions or in the collision of neutron stars.

Additionally, some stars may not be massive enough or may not live long enough to produce certain elements. Therefore, it would be more accurate to say that all stars produce some elements, but not all elements are produced by all stars.

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Answer: 50.806 cm is the correct answer.

Explanation: First divide 6104.5 cm^2 by 22.3 cm.

\(\frac{6104.5cm^2}{22.3cm} = 273.74 cm\)

*Note: When dividing units, subtract the exponents, and when multiplying units simply add the exponents.

Then continue by subtracting 324.55 cm - 273.74 cm.

This should give you an answer of 50.806 cm.

Answer:

✔ habitat destruction

Explanation:

the 3 reasons are:

hunting

habitat loss

introduced predators

summed up its habitat destruction

Answer:

it should be rinsed to clean the glassware

The order of reaction is defined as the power to which the concentration of the reactants are raised in the rate equation of the reaction.

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Answer:

Option B. Heptane

Explanation:

To obtain the parent name of the above compound, all we need to do is to locate the longest continuous carbon chain.

The longest continuous carbon chain of the above compound is 7.

Next, we shall also consider the chain if there is any double or triple bond.

From the diagram given above, no double or triple bond is present.

Finally, the parent name of the compound is heptane since the longest continuous carbon chain is 7 and no double or triple bond is present in the compound.

Answer:

Z: 495

Z+1: 1313

Z+2: 1402

Z+3: 1681

Z+4: 2081

Explanation:

The attached shows that ionization energy increases up and to the right. If we have five consecutive elements then that means as we increase the atomic number we are moving to the right and therefore increasing ionization energy.

1. The name of the compound is 2-ethyl-1-butene

2. The name of the compouund is 1-chloro-1-propene

3. The name of the compouund is trans-2,3-dibromo-2-pentene

The IUPAC name of the compound can be obtained by doing the following:

With the above information, the name of the compound is 2-ethyl-1-butene

The IUPAC name of the compound can be obtained by doing the following:

With the above information, the name of the compound is 1-chloro-1-propene

The IUPAC name of the compound can be obtained by doing the following:

With the above information, the name of the compound is trans-2,3-dibromo-2-pentene

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Answer:the process of dissovlving makes the ecectrons in their atoms more closely bound

Explanation:

thats what my lesson said

The solution of water and salt are good conductor of electricity because the process of dissolving makes the electrons in their atoms free to move.

The correct option is (A).

Pure water and salt are bad conductor of electricity.

But the solution of water and salt is a good conductor because when a salt's dissociated it's ions are free to move about in solution when it dissolves, allowing a charge to flow freely.

Because it includes ions, the resulting solution will conduct electricity.

Thus, option (A) the process of dissolving makes the electrons in their atoms free to move, that's why the solution of water and salt are good conductor of electricity.

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Answer:

A.) Change only the coefficients

Explanation:

An equation is balanced when there is an equal quantity of each type of element on both sides of a reaction. When balancing an equation, the only way to manipulate the amounts of each element is by changing the coefficient values. The coefficients alter the amount of each molecule in the reaction.

The subscripts cannot be altered. If you were to change the subscripts, you would be altering the amount of atoms in a particular molecule.

Answer:

its sodium hydroxide

Explanation:

Draw the Lewis structure for the biphenyl molecule. Draw Lewis Structure biphenyl molecule.

A molecule is a smallest unit of matter that can exist independently and is made up of two or more atoms that are chemically bonded together. Molecules are the building blocks of all matter and are composed of atoms from the same element or from different elements. Molecules can exist as single atoms, or they can be combined with other atoms to form complex structures. Molecules can be found in liquids, solids, and gases.

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Answer:

0.0827M of H₂SO₃

Explanation:

LiOH reacts with H₂SO₃ to produce water and Li₂SO₃, thus:

2LiOH + H₂SO₃ → 2H₂O + Li₂SO₃

Where 2 moles of lithium hydroxide react with 1 mole of sulfurous acid.

As the chemist requires 22.14mL = 0.02214L of a 0.210M solution to neutralize the acid, moles of LiOH are:

0.02214L × (0.210mol / L) =0.004649 moles of LiOH.

As 2 moles of LiOH react with 1 mole of H₂SO₃, moles of H₂SO₃ are:

0.004649 moles of LiOH ₓ (1 mole H₂SO₃ / 2 mol LiOH) =

0.002325 moles of H₂SO₃

These moles are present in 28.10mL = 0.02810L. Thus, molar concentration of the acid is:

0.002325 moles H₂SO₃ / 0.02810L = 0.0827M of H₂SO₃

Answer:

\(M_{acid}=0.0827M\)

Explanation:

Hello,

In this case, we should consider the acid-base reaction between sulfurous acid and lithium hydroxide:

\(2LiOH+H_2SO_3\rightarrow Li_2SO3+2H_2O\)

Thus, we notice a 2:1 molar ratio between lithium hydroxide and sulfurous acid, for that reason, at the equivalence point we have:

\(2*n_{acid}=n_{base}\)

That in terms of concentrations and volumes is:

\(2*M_{acid}V_{base}=M_{base}V_{base}\)

Thus, we solve for the molarity of the acid which is sulfurous acid:

\(M_{acid}=\frac{M_{base}V_{base}}{2*V_{base}} =\frac{0.210M*22.14mL}{2*28.10mL}\\\\M_{acid}=0.0827M\)

Best regards.