Given the equation for a system at equilibrium:
N2(g) + 3H2(g) <-> 2NH3(g) + energy

If only the concentration of N2(g) is increased, the concentration of

1. NH3(g) increases
2. NH3(g) remains the same
3. H2(g) increases
4. H2(g) remains the same

Answer: If more than one variable is changed in an experiment, scientist cannot attribute the changes or differences in the results to one cause. By looking at and changing one variable at a time, the results can be directly attributed to the independent variable.

Matter that is super-ionized such that it is no longer strictly atomic is a plasma.

When matter is super-ionized, it means that a significant number of its atoms have lost or gained electrons, resulting in a state known as a plasma. In a plasma, the atoms are no longer in their neutral state, but rather exist as positively charged ions and negatively charged electrons.

Plasmas are considered the fourth state of matter, distinct from solid, liquid, and gas. Due to the presence of charged particles, plasmas exhibit unique properties, such as the ability to conduct electricity and respond to magnetic fields.

They are commonly found in high-temperature environments, such as stars, lightning, and certain industrial processes, and play a crucial role in fields such as astrophysics and plasma physics.

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                                                                               ··                               ··  

The balanced equation was found to be Na· + ·Cl : ---------> Na + (: cl : )-

                                                                               ..                               ..          

Define ionic bond dot diagram ?

Group 8 elements, generally known as noble gases, are noted for their inertness. They hardly never react with other elements, such as water, oxygen, or metals. This is due to the fact that they all have a complete outer shell of electrons. This is the most stable electron configuration possible for an atom.

Other elements, on the other hand, do not have this stable electron configuration. Instead, in order to obtain that ideal arrangement, they must acquire, lose, or share electrons. Ionic bonding is one method for doing this.

the answer for the ionic bond dot diagram for the Nacl was found to be.

           ··                              ··

Na· + ·Cl : ---------> Na + (: cl : )-

           ..                              ..

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Answer:

Chlorophyll makes plants green.

Enzymes are responsible for dictating what chemical changes happen and when, so thus they control the life process of the cells in our bodies.

The cell wall is what gives a plant cell it's distinct shape (animal cells don't have cell walls btw).

Intracellular fluid, or cytosol, is the fluids stored in the Intracellular compartment.

The cell membrane is the barrier between everything inside the cell, and everything else outside of it. It protects the contents of the cell from harm and releases toxins and other waste from it. The cell membrane is basically like the gate keeper of the cell.

Explanation:

Hope this helps, I tried :)

Answer:

A description of the experiment the chemicals were used for.

Explanation:

A chemical waste label is required to provide information about any hazardous waste present in the container. Some details are mandatory to mention of the chemical waste label to prevent any accident while doing the experiment, that includes:

A chemical waste label does not mention or describe the experiment for which the chemicals were used for, scientists, teacher or students should have knowledge of the chemical composition by reading their names and evaluate themselves on which chemical should be used for which experiment.

Hence, the correct answer is  "A description of the experiment the chemicals were used for."

The correct answer is A description of the experiment the chemicals were used for.

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If the graduated cylinder is not rinsed after transferring the sodium carbonate solution to the beaker, it can introduce a source of error into the experiment.

When a solution is transferred from one container to another, a small amount of the solution can remain in the container and stick to the walls or bottom of the container. This is known as residual solution or carryover, and it can affect the concentration of the solution being transferred.

In the case of transferring sodium carbonate solution to a beaker, any residual solution left in the graduated cylinder can affect the concentration of the sodium carbonate solution in the beaker. This can lead to inaccurate measurements and affect the outcome of the experiment.

Rinsing the graduated cylinder with a small amount of the solution being transferred can help ensure that all of the solution is transferred to the beaker and any residual solution is also added to the beaker. This can help to minimize the error introduced by residual solution or carryover.

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We know that,

Acid is a compound,  molecule or the entity that can donate a proton or accept an electron pair in reactions.

Base is a compound, molecule or the entity that can donate an electron pair in reactions.

In water, base solution is slippery to the touch, tastes bitter, changes the color of indicators.

Salts are chemical compounds that are consisting of an ionic assembly of positively charged cations and negatively charged anions.

Salts are produced by the reaction of an acid with a base and the reaction between an acid and a base is called a neutralization reaction.

HF is a acid

\(Ca(OH)_{2}\) is a base

\(NH_{4}Cl\)  is a salt

NaF is a base

\(CaCl_{2}\) is a salt

\(H_{2} C_{2} O_{4}\), oxalic acid is an acid

RbOH is a base

\(H_{2} SO_{3}\) is an acid

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We see that the RMSD is much smaller than the bond length. This is expected, as the nuclei of the atoms in a molecule oscillate around their equilibrium positions with small amplitudes, even at room temperature.

The root-mean-square displacement (RMSD) of the nuclei in a molecule is given by the following formula:

RMSD = √(3RT/2k)

where R is the gas constant, T is the temperature in Kelvin, and k is the force constant of the bond in N/m.

The force constant of the bond in C₁₂O₁₆ can be calculated using the equilibrium bond length (r_e) and the reduced mass (mu) of the molecule:

k = mu x (2pi x c)² / (r_e)²

where c is the speed of light.

The reduced mass (mu) of C₁₂O₁₆ is:

mu = m_C x m_O / (m_C + m_O)

where m_C and m_O are the masses of carbon and oxygen, respectively. From the periodic table, we have:

m_C = 12.01 g/mol

m_O = 16.00 g/mol

Therefore:

mu = 12.01 g/mol x 16.00 g/mol / (12.01 g/mol + 16.00 g/mol) = 6.646 g/mol

The force constant of the bond can be calculated using the equation:

k = mu x (2pi x c)² / (r_e)²

where c is the speed of light:

c = 2.998 x 10⁸ m/s

Substituting the values, we get:

k = 6.646 g/mol x (2pi x 2.998 x 10⁸ m/s)² / (112.832 pm)²

k = 1.939 x 10³ N/m

Assuming the temperature is room temperature (298 K), the RMSD of the nuclei is:

RMSD = √(3RT/2k) = √(3 x 8.314 J/mol K x 298 K / (2 x 1.939 x 10³ N/m))

RMSD = 6.02 x 10⁻¹² m

Comparing the RMSD with the equilibrium bond length

(112.832 pm = 1.12832 x 10⁻¹⁰ m), we see that the RMSD is much smaller than the bond length. This is expected, as the nuclei of the atoms in a molecule oscillate around their equilibrium positions with small amplitudes, even at room temperature.

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The emission spectrum of hydrogen was used to calibrate the spectroscope because hydrogen has a relatively simple and well-understood atomic structure.

The simplest and most prevalent element in the universe is hydrogen. Its atomic structure is made up of one electron orbiting the nucleus in various energy levels or orbitals and a single proton in the nucleus.

An electron emits energy in the form of light at particular wavelengths or frequencies when it moves from a higher energy level to a lower energy level. The hydrogen spectral lines, which are a distinctive pattern of lines in the emission spectrum, are produced by these wavelengths.

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Answer:

Molecular solids and covalent network solids are two types of solid compounds. The key difference between molecular solid and covalent network solid is that molecular solid forms due to the action of Van der Waal forces where as covalent network solid forms due to the action of covalent chemical bonds.

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Answer:

Mass of water = 0.33 Kg

Explanation:

Given data:

Mass of water = ?

Mass of glucose = 14.5 g

molality of solution = 0.24 m

Solution:

Number of moles of glucose:

Number of moles = mass/molar mass

Number of moles = 14.5 g/ 180.156 g/mol

Number of moles = 0.08 mol

Mass of water:

Molality = number of moles of solute / Kg of solvent

0.24 m = 0.08 mol / Kg of solvent

Kg of solvent =  0.08 mol / 0.24 m

Kg of solvent = 0.33 Kg

1.chloride

2.sulfate

3.ferric

4.bromide

5.binary

6.ammonium

7.nirate

8.fluroide

give me brainliest as per your question ok

Answer:

6; barium sulfate

7; chromium (III) carbonate

The concentration of sodium ion, Na⁺ in the solution, given that 23.6 grams of Na₃PO₄ is dissolved in 750 mL of water is 0.576 M

We'll begin by obtaining the molarity of the solution. This is illustrated below:

Molarity = mole / volume

Molarity = 0.144 / 0.75

Molarity = 0.192 M

Finally we shall determine the concentration of the sodium ion, Na⁺. Details below:

Na₃PO₄(aq) <=> 3Na⁺(aq) + PO₄³⁻(aq)

From the balanced equation above,

1 mole of Na₃PO₄ contains 3 moles of Na⁺

Therefore,

0.192 M Na₃PO₄ will contain = 0.192 × 3 = 0.576 M Na⁺

Thus, the concentration of Na⁺ is 0.576 M

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Answer: A.  The compound CuCl is 500 times less soluble in sea water than it is in pure water.

pure water.

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.

This principle states that if there is any change in a equilibrium reaction, the equilibrium will shift in a direction so as to minimize the effect.

Thus when a common ion is introduced to an equilibrium reaction, the equilibrium will shift in a direction where the concentration of common ion is decreasing.

\(CuCl\rightleftharpoons Cu^++Cl^-\)

\(NaCl\rightarrow Na^++Cl^-\)

When common ion such as \(Cl^-\) from NaCl in sea water is introduced to an equilibrium reaction, the equilibrium will shift in a direction where the concentration of common ion is decreasing i.e. in the left side and thus solubility of CuCl further decreases.

Answer:

Explanation:

A precipitate is a solid formed in a chemical reaction that is different from either of the reactants. This can occur when solutions containing ionic compounds are mixed and an insoluble product is formed.

A solid that forms during a chemical reaction is known as a precipitate.

A precipitate refers to a solid substance that forms when two or more aqueous solutions are combined in a chemical reaction. It occurs when the reaction produces an insoluble product that cannot remain dissolved in the solution.

The formation of a precipitate is the result of a chemical reaction called a precipitation reaction. In such reactions, ions from different aqueous solutions react to form a solid product that separates from the solution as a precipitate. This solid substance typically appears as particles or crystals that settle at the bottom of the container or remain suspended in the solution.

The formation of a precipitate is influenced by factors such as temperature, concentration of reactants, and solubility of the resulting product. Precipitation reactions are commonly observed in fields such as chemistry, environmental science, and pharmaceutical research, where the formation and identification of solid substances are important for various applications and analyses.

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Answer:

Oil and vinegar separate because it is a suspension

Explanation:

When you let suspensions sit the particles begin to layer out, in the salad dressing the oil layers out on top of the vinegar. The two layers of oil and vinegar don't actually dissolve in each other. The layer with the lower density (oil) floats on top of the layer with a higher density (vinegar)

Water and vinegar are both hydrophilic and mix, whereas the oil is hydrophobic. Oil and vinegar separate because it is a suspension

Hydrophilic molecule are water-loving polar molecule.

They interact with water or they are dissolved in water or water like polar solvent.

For instance, the phospholipid molecules of the plasma membrane has a hydrophilic phosphate group.

Hydrophobic is a water hating  substance which can not dissolve in water, but other non-polar solvent.

Thus hydrophobic substances are lipophilic in nature  and the hydrophobic solvents are used to  separate water-immiscible substances from water.

The layers of oil and vinegar can not  dissolve with each other. The oil layer has the  lower density floats on top of the layer with a higher density product called vinegar.

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Answer:Atomic radius gets bigger

Explanation:

Atomic radius bigger because not only do the atoms have more and more protons and neutrons, and thus more mass in general, there is also stronger shielding affect. Shielding affect is when electrons closer to the nucleus block the positive charge from reaching electrons farther from the nucleus, and thus those far electrons are not drawn towards the nucleus as strongly, and spread out more, increasing atomic radius.

Answer:

2.469×10²⁴ molecules

Explanation:

Multiply by Avogadro's Number (6.022×10²³

Answer:Main answer: The osmotic pressure of a solution containing 0.110 mol of ethanol in 0.100 L at 294 K is approximately 2.18 atm.

Supporting explanation: The osmotic pressure (π) of a solution is given by π = MRT, where M is the molarity of the solution, R is the gas constant, and T is the temperature in kelvins. To calculate the osmotic pressure of the given solution, we need to first calculate its molarity (M). Molarity is defined as the number of moles of solute per liter of solution. Therefore, the molarity of the given solution is 0.110 mol/0.100 L = 1.10 M.

Substituting the values of M, R, and T into the equation, we get π = (1.10 mol/L) x (0.0821 L atm/K mol) x (294 K) = 2.18 atm (approx). Therefore, the osmotic pressure of the given solution is approximately 2.18 atm.

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the concentration (in M) of hydronium ions [H⁺] in a solution at 25'C with pH- 4.282 is 1.92 x 10⁻⁵ M.

To find the concentration of the hydronium ions [H⁺], we can use the equation:

pH = -log[H⁺]

where [H⁺] represents the concentration of hydronium ions in Molarity (M).

Rearranging the equation to solve for hydronium ions [H+], we get:

[H⁺] = 10^-{pH}

Substituting the given pH value of 4.282 in the equation, we get:

[H+] = 10⁻⁴.²⁸²

[H+] = 1.92 x 10⁻⁵ M

Therefore, the concentration of hydronium ions in the solution at 25°C with pH of 4.282 is 1.92 x 10⁻⁵ M.

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Answer:

2.239 kg.............

Answer:

\(2239g \times {10}^{ - 3} = 2.239kg\)

All 435 members of the United States House of Representatives are up for re-election in each election cycle, which occurs every two years.

This means that every seat in the House of Representatives is up for grabs in the regular congressional elections that are held in November of even-numbered years. Each state is divided into congressional districts based on population, and each district elects one representative to serve in the House.

The terms of representatives are two years long, so all representatives must run for re-election every two years if they wish to continue serving in the House.

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Answer:

Acceleration is the correct answer. Hope this helps!

Explanation:

Answer:

Her speed is 6.8m/s.

Explanation:

K.E= 1/2mv²

or, 2543.2= 1/2×110×v²

or, 2543.2 = 55v²

or, 2543.2/55 = v²

or, 46.24 = v²

or, 6.8² = v²

v = 6.8 m/s

answer

6.8

explanation

k.e=1/2v^2

2543.2=55v^2

46.24=v^2

6.8^2=v^2

v=6.8

Answer:

thanks

Explanation:

u a real one 4 tht

Crop rotation is the technique of planting crops in a different area of the garden so that no single crop will be planted in the same place two—or more—years in a row.

Crop rotation aids in preserving the structure and nutrient content of the soil as well as helping to keep pests that are carried by the soil from colonizing the garden.

As the same nutrients are repeatedly consumed when a single crop is planted in the same location each year, the soil structure slowly deteriorates. After a while, the soil loses those particular nutrients and becomes unhealthy. At the same time, insect pests that feed on a single crop and spend their larval stage in the soil multiply as long as their food supply is still present. As their number grows, these pests get harder to control every year.

There are four key benefits of crop rotation: (1) Plants that fix nitrogen, like legumes and peas, enhance the quality of the soil for subsequent vegetable plantings in the same bed. (2) Plants with shallow and deep roots alternately extracted nutrients from the soil at various depths. (3) Because their food source is not in the same place each year, soilborne pests that feed on a particular plant family are inhibited. (4) Farmers and gardeners that use crop rotation don't have to leave their fields or beds fallow as frequently as they might otherwise.

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Propanal and acetone are the IUPAC names for the chemical.

Propanal, commonly known as propanaldehyde, is an aldehyde with one double bond and one oxygen atom.

Acetone is a ketone compound. R2CO is the functional group of ketones.

Thus, Propanal and acetone are the IUPAC names for the chemical.

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Answer:

Louis Pasteur is best known for inventing the process that bears his name, pasteurization. Pasteurization kills microbes and prevents spoilage in beer, milk, and other goods.

Explanation:

Pasteur's work with microorganisms in fermentation and pasteurization led to a much better understanding of germ theory—that certain diseases result from invasion of the body by microorganisms.