A functional group that has a partial negative charge is likely {{c1::nucleophilic}}

XeF2, or xenon difluoride, is a linear molecule with a Xe-F bond angle of 180 degrees. The molecule has three atoms: one xenon atom and two fluorine atoms. Xenon has eight valence electrons, and each fluorine has seven valence electrons.

The xenon atom in XeF2 has four electron domains: two bonding pairs and two lone pairs. The electron pairs repel each other and try to be as far apart as possible. Therefore, the two bonding pairs are opposite to each other, and the two lone pairs are also opposite to each other.
The molecule of XeF2 has only one degree of rotational freedom because it is linear, which means that it can rotate around its axis without changing its shape. The molecule can rotate 180 degrees around the axis, but it will still look the same.
In summary, XeF2 has one degree of rotational freedom because it is a linear molecule that can rotate around its axis without changing its shape.

To learn more about xenon, refer:-

https://brainly.com/question/5516586

#SPJ11

One limitation of the linnaean classification system is that it is primarily based on physical attributes.

The classification system of Carolus Linnaeus is a system made up of hierarchical grouping of organisms into taxa.

The taxa he classified organisms into are as follows:

However, one flaw of this system of classification is that it is based on solely physical qualities of organisms as there was no technical know-how of molecular biology.

Learn more about Linnean classification at: https://brainly.com/question/9880750

#SPJ2

The density of the unknown substance is 10,200 kg/m³.

Density is a fundamental property of matter that quantifies how much mass is packed into a given volume. It is typically expressed in grams per cubic centimeter (g/cm³) or kilograms per cubic meter (kg/m³). In this case, the unknown substance has a density of 10.2 g/cm³. To convert this value to kg/m³, we use the conversion factor 1 g/cm³ = 1000 kg/m³.

By multiplying the given density by the conversion factor, we find that the substance's density is 10,200 kg/m³. This means that for every cubic meter of the unknown substance, it has a mass of 10,200 kilograms. A higher density implies a more compact arrangement of particles within the material.

Understanding density is crucial in various applications, such as determining the buoyancy of objects in fluids, identifying substances, and designing structures with specific weight requirements.

Learn more about density, here:

https://brainly.com/question/29775886

#SPJ12

The ionization energy of the chlorine atom is higher than that of the magnesium atom because it takes much more energy to pull an electron away from a valence shell that is nearly full.

The term ionization energy refers to the energy that is required to remove an electron from the valence shell of an atom. Now we know that the ionization energy is a periodic trend that decreases across the period but increases down the group.

As such, we can say that the ionization energy of the chlorine atom is higher than that of the magnesium atom because it takes much more energy to pull an electron away from a valence shell that is nearly full.

Learn more about ionization energy:https://brainly.com/question/16243729

#SPJ1

Answer:

A chemical reaction is a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products. ... A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

Limiting stimulus Na+ inflow as Na+ channels open Depolarization; closure of Na+ channels open K+ channels; P efflux K+ Repolarization; Hyperpolarization K+ channels go dark

A cell's membrane potential can become more negatively charged through a process called hyperpolarization. In contrast to depolarization, it is the reverse. By lowering the stimulus threshold needed to raise the membrane potential to the action potential threshold, it suppresses action potentials.

K+ efflux through K+ channels or Cl- influx through Cl- channels are two common mechanisms that lead to hyperpolarization. However, an increase in cations, such as Hyperpolarization is inhibited by either Ca2+ or Na+ through Ca2+ channels. Hyperpolarization will also happen when Na+ or Ca2+ currents are inhibited in a cell that has those currents at rest. This voltage-gated ion channel response is what leads to the hyperpolarization state. A hyperpolarized condition is immediately reached in neurons.

Learn more about hyperpolarization here:

https://brainly.com/question/12982897

#SPJ4

Explanation:

No of moles=7.50×10²³/6.023×10²³=1.245 moles

Grams=1.245×32=39.84grams

When H₂S gas is removed from the system at equilibrium, the reaction shifts to the right (products) and the concentration of NH₃ increases (option C)

A French scientist (Chatelier) postulated a principle which helps us to understand a chemical system in equilibrium.

The principle states that If a an external constraint such as change in temperature, pressure or concentration is imposed on a system in equilibrium, the equilibrium will shift so as to neutralize the effect.

According to Chatelier's principle a decrease in concentration of the products will favor the forward (right) reaction.

From the above principle, we can conclude that when H₂S gas is removed from the system at equilibrium, the reaction shifts to the right (products) and the concentration of NH₃ increases.

Thus, the correct answer to the question is option C

Learn more about chemical equilibrium:

https://brainly.com/question/4289021

#SPJ1

Considering the definition of ideal gas law,  a pressure of 1.5 atm is required to achieve a CO₂ concentration of 0.0620 mol L⁻¹ at 20°C.

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

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:

P×V = n×R×T

So the pressure is calculated as:

\(P=\frac{n}{V}xRxT\)

In this case, you know:

Replacing:

P=0.0620 \(\frac{mol}{L}\)× 0.082 \(\frac{atmL}{molK}\)× 293 K

Solving:

P= 1.489612 atm≅ 1.5 atm

Finally, a pressure of 1.5 atm is required to achieve a CO₂ concentration of 0.0620 mol L⁻¹ at 20°C.

Learn more:

https://brainly.com/question/4147359?referrer=searchResults

Katja will use different colors of paper in her experiment to test her hypothesis and determine which color of paper will increase the most in temperature when exposed to sunlight.

By using a variety of colors, Katja can compare the results and determine if her hypothesis is correct or if another color of paper increases the most in temperature.

This experiment will provide valuable information about the effects of different colors on temperature and can be useful in a variety of applications, such as in the development of materials that are resistant to heat or for designing energy-efficient buildings that reflect sunlight.

Ultimately, the use of different colors of paper in this experiment allows for a more thorough and accurate analysis of the relationship between color and temperature.

To know more about sunlight click on below link:

https://brainly.com/question/27183506#

#SPJ11

The reaction temperature X in a certain chemical process follows a uniform distribution with parameters A = -6°C and B = 6°C.

In a uniform distribution, the probability density function (PDF) is constant within a given interval and zero outside that interval. Since the reaction temperature follows a uniform distribution with parameters A = -6°C and B = 6°C, the interval for the temperature values is [-6, 6].

The PDF of a uniform distribution is given by:

\(\[ f(x) = \frac{1}{B - A} \]\)

Substituting the values, we have:

\(\[ f(x) = \frac{1}{6 - (-6)} = \frac{1}{12} \]\)

This means that the PDF of the reaction temperature X in the chemical process is \(\frac{1}{12}\) within the interval [-6, 6], and it is zero outside this interval.

Learn more about uniform distributions

brainly.com/question/30639872

#SPJ11

The weight of magnesium chloride required to prepare the 200 ml solution that is 5.0 M is approximately 48 grams.

To calculate the weight of magnesium chloride (\(MgCl_{2}\)) required to prepare a 200 ml solution that is 5.0 M, we need to use the formula: Weight (in grams) = Volume (in liters) × Concentration (in moles/liter) × Molecular Weight (in grams/mole)

First, we convert the volume from milliliters to liters by dividing it by 1000: Volume = 200 ml ÷ 1000 = 0.2 L. Next, we multiply the volume, concentration, and molecular weight: Weight = 0.2 L × 5.0 mol/L × 95.3 g/mol = 47.65 grams

Rounding to the nearest whole number, the weight of magnesium chloride required to prepare the 200 ml solution that is 5.0 M is approximately 48 grams.

This calculation ensures that the desired concentration is achieved by accurately measuring the appropriate amount of magnesium chloride, taking into account its molecular weight and the desired volume of the solution.

To know more about magnesium chloride, refer here:

https://brainly.com/question/30671024#

#SPJ11

Answer:

new moon

when the moon is front of the sun its a new moon

Answer:

A molecule can be made up of two atoms of the same kind:)

Explanation:

hope that helps:))

Answer:

Explanation:

A compound is a makeup of molecules.

When you make a compound, you are combining molecules. But when you make a molecule, you are not combining compounds, you are combining atoms.

Examples:

Atoms:

\(\mathrm{H}\) (hydrogen) and \(\mathrm{N}\) (nitrogen)

Molecules:

\(\mathrm{H_2}\) and \(\mathrm{N_2}\)

Compounds:

\(\mathrm{H_2SO_2}\) and \(\mathrm{NaCL}\)

Take a look at the Compounds and Molecules section. The \(\mathrm{H_2}\) in the example of a molecule is in one of the examples of the compounds, but the \(\mathrm{H_2SO_2}\) (THE WHOLE THING) is not in the molecule. This shows how every compound is a molecule, but every molecule is not a compound.

Answer:

They would be to heavy and you would be really stiff

Explanation:

Imagine walking in a suit made of iron or tin

You would feel like the Tin Man

You would be stiff

Metals are hard and heavy

Answer:

1) petroleum, mixture, not found on periodic table

2) hydrogen and helium, mixture, contains "and"

3) iron sulphide, compound, ends with "ide"

4) carbon dioxide, compound, ends with "ide"

5) salt water, mixture, not found on periodic table

6) milk and sugar, mixture, contains "and"

7) silver nitrate, compound, ends with "ate"

8) sodium carbonate, compound, ends with "ate"

9) carbon electrode, mixture, not found on periodic table

10) astatine, element, found on periodic table

11) argon, element, found on periodic table

12) oxidane, compound, contains "ane"

13) iron and sulphur, mixture, contains "and"

14) methane, compound, contains "ane"

Explanation:

When 50 ml of 0.10 m NaF is added to 50 ml of 0.10 m HF, relative to the pH of the 0.10 m HF solution the pH of the resulting solution will increased. the option c increased is correct.

The pH is the measurement for the solution that it is acidic or the basic or it is neutral. the pH scale ranges from 0 to 14 in the scale. the pH value in the 7 is for the neutral solution. that means it is neither basic nor acidic. the pH value greater than 7 will be the basic solution. the pH value in the pH scale less than 7 is for the acidic solution.

Thus, the pH will increases as compared to the value of the 0.10 M HF. the option c is correct.

To learn more about pH here

https://brainly.com/question/29570541

#SPJ4

There are approximately 3.8 x \(10^{6}\) g of Sodium Chloride in 65 liters of the solution.

The number of grams of NaCl in 65 liters of a solution can be determined by using the concentration of the solution. Since the concentration of NaCl is not given, it's not possible to determine the exact number of grams of NaCl in 65 liters of the solution.

However, if we assume that the solution is an aqueous solution of NaCl, we can make an estimate using the density of water. The density of water is approximately 1 g/mL, so 65 liters of water is approximately 65 × 1000 = 65000 mL of water. This means that if the concentration of NaCl in the solution is 1 M, then there would be 65000 mL × 1 M = 65000 moles of NaCl in the solution. Since the molar mass of NaCl is 58.44 g/mole, this would correspond to 65000 moles x 58.44 g/mole = 3.80 × \(10^6\) g of NaCl.

This is a rough estimate, and the actual number of grams of NaCl in 65 liters of solution would depend on the actual concentration of NaCl in the solution. However, if we use 2 significant figures, we can estimate that there are approximately 3.8 × \(10^6\) g of NaCl in 65 liters of the solution.

Learn more about Sodium Chloride:

brainly.com/question/9811771

#SPJ4

The molar concentration of the solution is 6.24 M. The number of moles of BeCl₂ are 2.81 mol.

Molarity (M) is defined as moles of solute per liter of solution. We can convert the given volume of the solution from milliliters (ml) to liters (L):

450 ml = 450/1000 L = 0.45 L

The molarity (M) of the solution is:

M = moles of solute / liters of solution

We need to find the number of moles of BeCl₂ in the solution. The molar mass of BeCl₂ is:

Molar mass of BeCl₂ = 9 + 2(35.5) = 80 g/mol

The number of moles of BeCl₂ is:

moles = mass / molar mass

moles = 225 g / 80 g/mol = 2.81 mol

Now we can calculate the molarity of the solution:

M = moles of solute / liters of solution

M = 2.81 mol / 0.45 L = 6.24 M

To know more about concentration, here

brainly.com/question/29256830

#SPJ4

--The complete question is, You want to determine the molar concentration of a solution that contains 225g BeCl₂ in a total volume of 450 ml. how many moles of BeCl₂ are in the solution?--

Answer:

A. The faces of the men sitting at the table.

Answer:

A. The faces of the men sitting at the table.

Explanation:

This was the correct answer when I took the quiz.

Answer:expert

Explanation:

lanation:    

ExpErnest Rutherford’s experiments involving the interaction of radiation with a magnetic or electric field (Figure 2) helped him determine that one type of radiation consisted of positively charged and relatively massive α particles; a second type was made up of negatively charged and much less massive β particles; and a third was uncharged electromagnetic waves, γ rays. We now know that α particles are high-energy helium nuclei, β particles are high-energy electrons, and γ radiation compose high-energy electromagnetic radiation. We classify different types of radioactive decay by the radiation produced.

Alpha (α) decay is the emission of an α particle from the nucleus. For example, polonium-210 undergoes α decay:

210

84

Po

⟶

4

2

He

+

206

82

Pb

or

210

84

Po

⟶

4

2

α

+

206

82

Pb

Answer:

There are 0.311 moles of  gas in the tank

Explanation:

Complete question

A 4.00g sample of gas is found to exert a pressure of 1.71 atm when confined in 3.60L container at a temperature of 241 K. Find the number of moles of the gas

Solution

As we know

\(PV = nRT\)

where P is the pressure of the gas in atm

V is the volume in liters

n is the number of moles

R is the gas constant = 0.08206 L·atm/K·mol

and T is the temperature in Kelvin

Substituting the given values in above equation, we get -

\(1.71 * 3.60 = n * 0.08206 * 241\\n = 0.311\)

There are 0.311 moles of  gas in the tank

When sodium phosphate reacts with sulfuric acid, forming sodium sulfate and phosphoric acid, the stoichiometric coefficient for sulfuric acid in the balanced chemical equation is 3.

In every balanced chemical equation, the total number of individual atoms on the reactant side must be equal to the total number of individual atoms on the product side. The stoichiometric coefficient is the number written in front of each reactants and products that tells how many moles of each are needed in the reaction.

The chemical equation for the given reaction is:

\(Na_{3} PO_{4}\) + \(H_{2} SO_{4}\) = \(Na_{2} SO_{4}\) + \(H_{3} PO_{4}\)

Put the necessary stoichiometric coefficient to balance each element.

Balancing Na:

\(2Na_{3} PO_{4}\) + \(H_{2} SO_{4}\) = \(3Na_{2} SO_{4}\) + \(H_{3} PO_{4}\)

Balancing P:

\(2Na_{3} PO_{4}\) + \(H_{2} SO_{4}\) = \(3Na_{2} SO_{4}\) + \(2H_{3} PO_{4}\)

Balancing S:

\(2Na_{3} PO_{4}\) + \(3H_{2} SO_{4}\) = \(3Na_{2} SO_{4}\) + \(2H_{3} PO_{4}\)

Notice that H and O are already balanced.

Hence, the balanced chemical equation for the reaction is:

\(2Na_{3} PO_{4}\) + \(3H_{2} SO_{4}\) = \(3Na_{2} SO_{4}\) + \(2H_{3} PO_{4}\)

where 3 is the stoichiometric coefficient of sulfuric acid, \(H_{2} SO_{4}\).

Learn more about stoichiometric coefficient here: https://brainly.com/question/6666875

#SPJ4

The rule of BODMAS should be obeyed, thus

= (7.945 J + 82.3 J) - 0.02 J

= 90.245 J - 0.02 J

= 90.225J

= 56.0012m

500 g + 432 g + 2 g

= 934g

Learn more about addition here:

https://brainly.com/question/25421984

#SPJ1

Answer:

A

Explanation:

A catalyst speeds up a reaction by lowering the required activation energy, so it's not B. Like previously stated, the catalyst lowers the activation energy required, so it's not C either. This leaves us with A. Just to double check, does a catalyst speeds up a reaction? Yes! So like it says in A, a catalyst causes the equilibrium to be reached faster. Have a nice day! :)

Catalysts speed up a chemical reaction by causing equilibrium to reach quickly while maintaining the equilibrium's position. Thus, option A is true.

A catalyst increases the reaction rate by decreasing the activation energy of the reaction. As the minimum energy required by the reactants for the reaction is decreased the rate of the formation of products increases.

During the reaction, the catalyst remains unchanged and does not undergo any chemical change. It can increase the reaction rate of both irreversible and reversible reactions.

In an equilibrium reaction, the catalyst can increase the rate of both forward and reverse reaction by reaching the reaction equilibrium at a faster rate and can move the reaction toward the products as well as a reactant.

Therefore, the catalyst causes equilibrium to be reached faster.

Learn more about catalysts here:

https://brainly.com/question/22363846

#SPJ5

Answer: 2 AgNO3(aq) + NiCl2(aq) ⇒ 2 AgCl(s) + Ni(NO3)2 (aq)

Explanation:

Answer:

Vertebrates: both birds and mammals are vertebrates, which means that they have backbones.

Explanation:

The pH of the resulting buffer is 4.446.

To find the pH of the resulting buffer, we need to first determine the moles of weak acid and moles of NaOH that have been added to the solution.

Moles of weak acid = (0.200 mol/L) x (0.525 L) = 0.105 mol

Moles of NaOH = (0.150 mol/L) x (0.500 L) = 0.075 mol

Next, we need to determine the moles of weak acid and moles of conjugate base (A-) in the buffer solution.

Since the weak acid is in excess, all of the NaOH will be neutralized by the weak acid to form its conjugate base.

Moles of A- = 0.075 mol

Moles of HA remaining = 0.105 mol - 0.075 mol = 0.03 mol

The initial concentration of weak acid was 0.200 M, so its initial moles were:

Initial moles of HA = (0.200 mol/L) x (0.525 L) = 0.105 mol

The final volume of the solution after mixing the two solutions together is:

Final volume = 0.500 L + 0.525 L = 1.025 L

Using the Henderson-Hasselbalch equation, we can find the pH of the resulting buffer:

pH = pKa + log([A-]/[HA])

pKa = -log(Ka) = -log(8.59×10−5) = 4.066

[A-]/[HA] = 0.075 mol/0.03 mol = 2.5

pH = 4.066 + log(2.5) = 4.446

To learn more about buffer solution click here

brainly.com/question/24262133

#SPJ11

The relative abundance of isotopes is the number of atoms of a particular isotope divide by the total number of atoms of all isotopes of that element, multiplied 100 percent.

The relative abundance of an isotope is the percentage of atoms with a specific atomic mass found in a naturally occurring sample of an element.

Also relative abundances refers to the relative proportions of the stable isotopes of each element. They are most often quoted as atom percentages

To calculate the percent abundance of each isotope in a sample of an element,  the number of atoms of a particular isotope is usually divide by the total number of atoms of all isotopes of that element and then multiply the result by 100 since it is expressed in percentage.

Mathematically, the formula for relative abundance is given as;

R.A = ( number of atoms of isotope / total number of atoms ) x 100%

Learn more about relative abundance here: https://brainly.com/question/6844925

#SPJ1