Arsenic acid dissociates to form dihydrogen arsenate and hydronium ion. Arsenic acid has Ka of 5.5×^10−3.

Write the equation dissociation for arsenic acid.

Express your answer as a chemical equation. Identify all of the phases in your answer.

The correct option is D:atoms with high electronegativities will not lose electrons, so instead they share electrons to reach a stable number of valence electrons

What do we mean by covalent bond-

A covalent bond is a chemical bond in which two atoms share electrons in such a way that they both attain a noble-gas configuration.

The sharing of valence electrons between atoms is known as a covalent bond.Some atoms lacks or has an extra electron in its outermost state,gaining or losing an electron from their outermost state can lead to stable configuration of both the species reducing their energy levels.Covalent bond is formed between an electronegative species(reciever) and electropositive species(donor),in which the electron is shared.

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A maximum of two electrons will be placed in 1s first. With a maximum of two electrons, 2s will then be filled. With a maximum of 6 electrons, 2p will then be filled.

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Answer:Question

Select the correct answer. Sami was blowing soap bubbles in his room where the temperature was 23 °C and the pressure was constant. He blew a soup bubble of volume 45 mL. The bubble suddenly escaped from the window where the temperature outside was 12 °C. Explain what will happen to the soap bubble? The volume of the soap bubble will increase to 46.73 mL. The volume of the soap bubble will increase to 86.25 mL. The volume of the soap bubble will decrease to 23.47 mL. The volume of the soap bubble will decrease to 43.33 mL.​

Explanation:

Question

Select the correct answer. Sami was blowing soap bubbles in his room where the temperature was 23 °C and the pressure was constant. He blew a soup bubble of volume 45 mL. The bubble suddenly escaped from the window where the temperature outside was 12 °C. Explain what will happen to the soap bubble? The volume of the soap bubble will increase to 46.73 mL. The volume of the soap bubble will increase to 86.25 mL. The volume of the soap bubble will decrease to 23.47 mL. The volume of the soap bubble will decrease to 43.33 mL.​

The molecules of Sodium chloride holds a chemical bond to become stable when dry is an ionic bond.

The chemical bonds are those which holds the atoms of molecules together and creates a temporary connection between them.

The three major types of chemical bonds are:

The ionic bonds generally occurs in between a metal and a nonmetal ions.

The atoms share electrons in between them to become stable, forms ions. Due to electric attraction between these ions forms a bond between them. That bond is called as Ionic bond.

Sodium chloride - NaCl

Where Na(sodium) forms Na⁺ ion(metal) by sharing electrons with the chlorine atom and Cl(chlorine) forms Cl⁻ ion(non-metal).

So, due to the attraction between the anion and the cation, a bond is established between them. So, it is called Ionic bond.

Therefore, the chemical bond in Sodium chloride is an Ionic bond.

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Foliar burn is a plant condition caused by the application of fertilizer in excess. It appears as a leaf-tip or marginal burn, with the burning and dying of plant tissues, and the leaves will also display the formation of necrotic tissue and spots.

This happens because of the process by which particles of fertilizer can cause foliar burn.Foliar burn occurs when a fertilizer solution is applied to the plant’s foliage, and the solution stays on the leaves for too long. The particles of fertilizer can create an osmotic pressure difference across the leaf membrane, which leads to an imbalance of water between the leaf cells and the external environment.

This imbalance causes the plant cells to leak out, leading to cell death. As the plant cells die, the leaves start to turn brown and become brittle. In some cases, the leaves will fall off entirely.A long answer to your question can be: The process by which particles of fertilizer can cause foliar burn is the imbalanced water between the leaf cells and the external environment.

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Water (and everything else) stays on Earth due to the combination of gravity and atmospheric pressure.

What is Atmosphericc Pressure?

Atmospheric pressure is the force exerted by the weight of the Earth's atmosphere on the surface below it. The Earth's atmosphere is composed of a mixture of gases, primarily nitrogen (78%) and oxygen (21%), along with other trace gases. These gases have mass and are attracted towards the center of the Earth by the force of gravity.

The pressure of the atmosphere decreases with increasing altitude because there is less atmosphere above, meaning that there is less weight and therefore less force pressing down. At sea level, the average atmospheric pressure is around 101.3 kilopascals (kPa) or 14.7 pounds per square inch (psi). This pressure can be measured with devices such as barometers.

Water on Earth does not fall off into space due to the force of gravity. Gravity is the force that attracts objects towards each other. The Earth's gravity is what keeps everything on the planet, including water, from floating away into space. As long as an object is within the Earth's gravitational field, it will be attracted towards the center of the planet.

Furthermore, the Earth's atmosphere also helps to keep water from falling off the planet. The atmosphere creates a layer of air around the Earth, which creates pressure that holds water molecules in place. This pressure is also caused by gravity, as the weight of the atmosphere presses down on everything below it, including water.

In summary, water (and everything else) stays on Earth due to the combination of gravity and atmospheric pressure.

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Answer:

wow ok have fun

Explanation:

Answer:

hiiiiiiiii

Explanation:

thank you

Answer:

1.0076g

Explanation:

We know that 1 dm³ = 1000ml

 So 550ml = 0.55 dm³

We can find the number of moles using the formula:

Number of moles = Volume ÷ 24 dm³ [in rtp]

 Number of moles = 0.55 ÷ 24 = 0.0229 mol

Now, we have to find the Mr in order to find mass of carbon dioxide.

 Mr of CO₂ = 12 + (16 × 2) = 44

The formula for finding the mass in terms of Mr and number of moles is:

Mass = number of moles × Mr

 ∴Mass = 0.0229 × 44 = 1.0076g

The reaction between HBr (hydrobromic acid) and water is a typical example of an acid-base reaction, in which an acid reacts with a base to form a salt and water. The reaction is as follows:

\(HBr(aq) + H2O(l) $\rightarrow$ H$_3$O$^+$(aq) + Br$^-$(aq)\)

In this reaction, HBr acts as an acid and donates a proton (H⁺) to the water molecule, which acts as a base and accepts the proton. The \(H_{3}O^{+}\)ion that is formed is known as the hydronium ion, which is a strong acid. The Br⁻ ion that is formed is a weak base, and it remains in solution.

The equation is already balanced, and the state symbols indicate that HBr is in aqueous solution (aq) and water is in liquid form (l), while the products are in aqueous solution. The overall reaction is exothermic and releases heat.

In summary, the reaction between HBr and water results in the formation of hydronium ions (\(H_{3}O^{+}\)) and bromide ions (Br⁻).

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Answer:

B

Explanation:

Chemical and physical element properties are determined by their valence electrons metals with only one valence electron are poor conductors of electricity. Option B is correct.

Valence electrons are the electrons present at the valance shell or orbit of the atom and always take part in the chemical reaction or reaction with other metals and can conduct electricity.

If the atom contains only one valance electron in the outermost shell or valance shell then it cannot conduct the electricity properly due to the fewer number of electrons.

Therefore, Option B is correct. Chemical and physical element properties are determined by their valence electrons metals with only one valence electron are poor conductors of electricity.

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The pH of 50ml solution with a concentration of 0.1M after the addition of 100ml of 0.1M of NaOH is 11.1.

It is given that the amino acid alanine is diprotic. This means that the acid can donate two H⁺ ions. We need to find the pH of 50ml solution with a concentration of 0.1M after the addition of 100ml of 0.1M of NaOH is added. Then we know that,

Millimoles = volume x molarity in ml

When NaOH is added, it reacts with the acid to become diprotic and hydrolysis of salt takes place which will have the following reaction,

A²⁻ + H₂O -----> HA⁻ + OH⁻

Then [A²⁻] in the final Solution is given by = 5/Total volume

= 5/50+100

= 5/150

= 1/30M

The Salt (Na₂A) is made from a weak acid and strong base, a formula for pH

is given by:

pH= 1/2 (Pkw + Pka + logc)

Where c =1/30M(Concentration of salt)

Pkₐ₂ = -log 2x10⁻¹⁰

Pkw = 14 (Constant at at 25°C)

Hence,

pH = 1/2(14+9.7+log1/30)        

     = 1/2(23.7-1.48)

     = 22.22/ 2

pH = 11.1

Therefore the pH of the solution of NaOH is 11.1

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The quantity of water that are required to be mixed with 11. 75 g of hgcl in order to make a 0. 01 m solution is: 4970 g

In chemistry a solution is known as a homogeneous mixture of two or more components called:

To solve this molality problem, the formulas and the procedures that we have to use are:

Where:

Information about the problem:

Applying the mole (n) formula we get:

n(hgcl) =  11.75 g /236.04 g/mol

n(hgcl) = 0.0497 mol

Applying the molality formula, and clearing the m(solvent) we get:

m(solution) = n(solute)/m(solvent)

m(H2O)= 0.0497 mol /0.01 m

m(H2O)= 4.97 kg

Converting the mass units from (kg) to (g) we have:

m(H2O)= 4.97 kg * (1000 g/1kg)

m(H2O)= 4970 g

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The orientation of the glycosidic bond affects the properties of the polysaccharides it creates by determining the geometry of the sugar units in the polymer chain. When the glycosidic bond is in the alpha configuration, the sugar ring has a twisted conformation, which results in the sugar units being oriented in a more linear fashion.

In contrast, when the glycosidic bond is in the beta configuration, the sugar ring has a more planar conformation, which results in the sugar units being oriented in a more zig-zag fashion.

This difference in orientation affects the overall structure of the polysaccharide. Polysaccharides with alpha glycosidic bonds tend to form helical structures, while polysaccharides with beta glycosidic bonds tend to form sheet-like structures. This is because the twisted conformation of the alpha sugar units allows for the formation of hydrogen bonds between adjacent sugar units, which leads to the formation of a helix.

In contrast, the more planar conformation of the beta sugar units does not allow for the formation of hydrogen bonds between adjacent sugar units, which leads to the formation of a sheet.

Additionally, the orientation of the glycosidic bond affects the solubility and digestibility of the polysaccharide. Polysaccharides with alpha glycosidic bonds tend to be more soluble and more easily digested than polysaccharides with beta glycosidic bonds.

This is because the helical structure of alpha-polysaccharides allows for more surface area to be exposed to water and digestive enzymes, while the sheet-like structure of beta-polysaccharides does not.

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Yep, it happened to me

Star A will have blue color as hottest stars are blue in color.

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The central atom of the molecule has three electrons on its valence shell.

The valance shell electron pair repulsion theory shows us the number of electron pairs that can be found on the valance shell of the central atom of the molecule. Recall that the shape  of the molecule is determined by the number of electron pairs that can be found on the valance shell of the central atom of the molecule.

Hence, given the fact that the  molecule contains 3 atoms. It has 1 triple bond and 1 single bond, we can be able to conclude that the molecule has three electron pairs on its valance shell.

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Yes, you are correct that lithium-ion batteries contain cobalt, nickel, and other metals. When these batteries are not disposed of properly, there is a risk that these metals can leak into the environment, potentially contaminating groundwater. This can pose serious environmental and health hazards.

To minimize the risks associated with improper disposal of lithium-ion batteries, it is essential to follow appropriate recycling and disposal guidelines. Many communities have designated collection points or recycling programs for batteries and electronic waste, ensuring that the toxic metals are safely contained and managed.
Moreover, research is underway to develop more sustainable alternatives to traditional lithium-ion batteries, including designs that reduce or eliminate the need for cobalt and other potentially harmful materials. This could help lessen the environmental impact of battery production and disposal in the future.
In summary, lithium-ion batteries do contain cobalt, nickel, and other metals that can contaminate groundwater if not properly disposed of. Proper recycling and disposal measures should be taken to minimize this risk, and ongoing research aims to develop more sustainable battery technologies.

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The change in Gibbs free energy is -219.4 kJ/mol that can be calculated by using the given entites.

The preferred Gibbs free energy of formation (Gf°) of a compound is the extrade of Gibbs free energy that accompanies the formation of one mole of a substance in its preferred country from its constituent factors of their preferred states (the maximum solid shape of the detail at 1 bar of strain and the required temperature. The preferred loose electricity of formation of a substance is described because the loose-electricity extrade which ends whilst 1 mol of substance is ready from its factors at the usual strain of one atm and a given temperature, commonly 298 K. It is given the symbol ΔGf°.

Delta G= delta G products - delta G reactants

=[2 mol * delta G_f, AgCl(s)]-[(2 mol* delta G_f, Ag(s))+(1 mol *delta G_f, Cl2(g))]

=2 mol* -109.70 kJ/mol - [2 mol * 0 kJ/mol + 1 mol * 0 kJ/mol]

=-219.4 kJ

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Explanation:

6×1.25×37.5= 281.5 g of chlorine

1×1.25×2= 2.5 g of hydrogen

When X, which contains both lactone and an acetal, is treated with the reagents NaOH, H2O, a neutral compound is formed. This product is known as a hemiacetal.

When an acetal is formed, a hemiacetal intermediate is produced. Hemiacetals, like acetals, are organic compounds. When the hemiacetal is treated with an alcohol, it forms an acetal. As a result, acetals are formed by a reaction that is similar to that of hemiacetals. Nucleophilic addition reaction is the reaction that occurs between a lactone and a hydroxide ion to create a lactone.

The reaction mechanism is nucleophilic addition followed by elimination. It is the same reaction mechanism as that of nucleophilic addition to a carbonyl group of a ketone or an aldehyde. Here is a neutral compound formed when X, containing both lactone and an acetal, is treated with NaOH and H2O:

OH– C4H9O – CHO2+ (lactone) ⟶  H3C–C(OH)–O– C4H9O– CHO + Na+ (counterion)

Thus, a hemiacetal is formed when X, which contains both lactone and acetal, is treated with NaOH and H2O.

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Aluminum ion has a charge of 3+, Al³⁺, and sulfate is SO₄²⁻, so the compound aluminum sulfate has to have a number of aluminum and sulfate such that the final charge is zero, so the proportion on aluminum sulfate is:

That way we have 6+ and 6-, so neutral compound.

This means that for 1 mol of aluminum sulfate, we have 2 moles of aluminum ion. The molar concentration is the number of moles of solute divided by the volume of solution, so it is directly proportional to the number of moles.

So, we can use a rule of three as follows:

aluminum ion --- aluminum sulfate

2 --- 1

x --- 0.646 M

So:

So, the concentration of aluminum ion in this solution is 1.292 M.

Answer:

The ratio of aluminium and oxygen ions that only exists is 2:3

Since Aluminium has 3 valence electrons and oxygen has 2 vacant orbitals

Aluminium holds a valence of 3 and oxygen 2, when they react a compound of formula

\(Al _{2} O _{3}\)

is formed

According to the electronic configuration and valency, ratio that could exist between aluminium and oxygen is 2:3.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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To prepare a sample in a capillary tube for a melting point determination, gently tap the tube into the sample with the open end of the tube down. Continue tapping until the sample is a couple of millimeters high. Then, with the closed end of the tube down, tap the sample down slowly or drop the tube into a long tube to move the sample down faster. Finally, ensure you can see some or all the solids in the magnifier when placed in the melting point apparatus before turning on the heat.

A capillary tube is a thin glass tube with a narrow diameter that can be used for melting point determinations. Melting point determinations are a valuable tool for characterizing a substance. The steps to prepare a sample in a capillary tube for a melting point determination are as follows:

Tap the tube into the sample with the open end down. Continue tapping until the sample is a couple of millimeters high. Then, with the closed end of the tube, tap the sample down slowly or drop the tube into a long tube to move the sample down faster. Ensure you can see some or all the solids in the magnifier when placed in the melting point apparatus before turning on the heat.

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The independent variable when comparing the boiling point of substances having different intermolecular forces is the intermolecular forces of various substances (Option a).

The expression 'intermolecular forces' make reference to the bonds that bind different atoms in macromolecular structures and thus also serves to shape the form of macromolecules.

In conclusion, the independent variable when comparing the boiling point of substances having different intermolecular forces is the intermolecular forces of various substances (Option a).

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So some options can be different, in that case it would be  

The intermolecular forces of various substances

Option 2:

Compounds made of either ions, atoms, or molecules

Answer:

p = 36400 kg·m/s

Explanation:

p=mv

p= Momentum

m= mass (1300 kg)

v= 28

1300 × 28

= 36400 kg·m/s

The Momentum of the car is 36400 kg-m/s.

Momentum is the product of the mass and velocity of an object. It is a vector quantity, possessing a magnitude and a direction.  m is an object's mass and v is its velocity

Given that,

(m is an object's mass and v is its velocity)

To find :

The momentum of car, p

Solve :

Let p is the momentum of an object. It can be calculated by the product of mass and its velocity. The formula to find it is given by :

p = m x v

  = 1300 x 28

  = 36400 kg-m/s.

Therefore, the momentum of the car is 36400 kg-m/s.

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Answer:Mixture comprises two or three compounds that aren't fused chemically. They have no physical interactions

and A solution contains two substances that are chemically mixed to form a new compound.

Answer:

Brittleness

Explanation:

hope this helps u

Answer:

Carbon is a non metal

Explanation:

Non metals are brittle.

Answer:

there is 1 leftover because your adding to 1... I think

Explanation:

Answer:

The answer is "2.5 mole"

Explanation:

The reaction for producing \(NH_3\) can be defined as follows:

Reaction:

\(N_2+ 3H_2 \rightarrow 2NH_3\)

According to the above reaction, to produce 2 moles of \(NH_3\)  we need 1 mole of nitrogen:

So, according to the question to produce 5.0 mole \(NH_3\) the required \(N_2\):

\(\Rightarrow \ 5.0 \ mole \ of \ NH_3 \times \frac{1 \ mole\ of \ N_2}{2 \ mole \ of NH_3}\\\\\Rightarrow 5.0 \times \frac{1}{2}\\\\\Rightarrow 2.5\ mole\\\)

To produce 5.0 mole \(NH_3\)  we need 2.5 mole \(N_2\)