1. Draw the Lewis stricture of (AsF4); Use this stucture, in conjunction with VSEPR theory, lopredict:

a. The eleatron domain gromerty of the molecule.

b. The molewlar geometry (stape of the molcculc).

c. The bond angles around the central atom,

d. The polarity of the molecule.

b. The type of hyonidization of the central atom.

Answer:

Calcium" is the element which has similar chemical properties to magnesium .

Answer:

Concept: Chemical Analysis

The equation E = mc² describes the relationship between energy and mass and reveals that energy and mass are interchangeable and interrelated.

The equation E = mc², formulated by Albert Einstein in his theory of special relativity, is a fundamental equation in physics. It establishes the equivalence between energy (E) and mass (m) and demonstrates their interdependence.

In the equation, c represents the speed of light in a vacuum, which is a constant value. The equation states that the energy (E) of an object is equal to its mass (m) multiplied by the square of the speed of light (c) squared.

This equation implies that mass can be converted into energy and vice versa. It highlights the concept of mass-energy equivalence, which suggests that mass can be considered a form of energy. When mass is converted into energy, it can be released in various forms, such as heat, light, or other types of energy.

Furthermore, the equation reveals that a small amount of mass can contain an enormous amount of energy. The speed of light squared (c²) is a large value, indicating that even a tiny amount of mass can yield a significant amount of energy when converted.

The equation E = mc² describes the identities of energy and mass by establishing their interdependence and interchangeability. It demonstrates that mass can be converted into energy and vice versa, highlighting the concept of mass-energy equivalence. This equation reveals the profound relationship between energy and mass, emphasizing that even a small amount of mass can contain a substantial amount of energy.

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Answer:

Explanation:

first, you calculate the amount of O2 in moles:

98.0 ÷ 32 = 3.0625

second, the ratio if O2/C3H8 is 5 so you need to calculate O2 in moles with that:

3.0625 ÷ 5 = 0.6125

third, the amount of CO2 in moles also can be calculate by the ratio of C3H8/CO2 which is 3

0.6125 × 3 = 1.8375

then multiply CO2 in moles by its molar mass which is 44 g/mol

1.8375 × 44 = 80.85g

I would predict that copper will have the highest specific heat capacity among copper, granite, and lead.

This is because metals generally have higher specific heat capacities than nonmetals, and copper is a metal. Copper is also known to have a relatively high specific heat capacity compared to other metals, making it a good conductor of heat and able to absorb and retain thermal energy well. On the other hand, lead has a relatively low specific heat capacity, and granite, being a type of rock, will likely have a moderate specific heat capacity but still lower than copper.

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Answer: In the core of the Sun hydrogen is being converted into helium. This is called nuclear fusion. It takes four hydrogen atoms to fuse into each helium atom. During the process some of the mass is converted into energy.

The bond order for a second-period diatomic particle containing five electrons in antibonding molecular orbitals and eight electrons in bonding molecular orbitals is 1.5

Bond order is defined as the number of electrons in bonding molecular orbitals minus the number of electrons in antibonding molecular orbitals divided by two. As a result, we may determine the bond order of this diatomic particle by the formula: Bond order = (number of bonding electrons - number of antibonding electrons) / 2

Bond order = (8 - 5) / 2

Bond order = 1.5.

This diatomic molecule, according to the bond order, is a stable molecule since the bond order is greater than 1, indicating that it is a double bond. The molecule has an overall bond strength that is greater than a single bond, but not as strong as a triple bond. So therefore he bond order for a second-period diatomic particle containing five electrons in antibonding molecular orbitals and eight electrons in bonding molecular orbitals is 1.5

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Answer:

The electron configuration for the first row transition metals consists of 4s and 3d subshells with an argon (noble gas) core. This only applies to the first row transition metals, adjustments will be necessary when writing the electron configuration for the other rows of transition metals.

Explanation:

The percent composition of salicylic acid is C7H6O3, or 60.87%C, 4.4%H, and 34.75%O

Howler and warnibers is answer

Answer:

22 electrons

Explanation:

correct answer correct answer correct answer

Answer:

The molecular mass of lead trioxonitrate(V) is 232

Explanation:

The molecular mass of Lead Trioxonitrate(V),which is Pb(NO3)2 is:

= 108 + (14 + 3*16)*2

= 108 + 62*2

= 108 + 124

= 232

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Answer:

13.6g/L

Explanation:

The formula for density is D=m/V

D = Density in grams per liter (g/L)

m = Mass of sample in grams

V = volume of sample in liters

Convert 205mL to Liters as follows:

205mL (1L/1000mL) =0.205L

then simply plug into the equation for density:

2790g/0.205L = D= 13.6g/L

The correct answer to the question is : To isolate p-tert-butylphenol after it has been extracted into Na OH solution, you will need to follow a few steps. First, you will need to separate the Na OH solution from any other compounds or impurities. This can be done by performing a simple filtration or extraction step.

Next, you will need to acidify the Na OH solution by adding a strong acid, such as hydrochloric acid (H Cl). This will cause the p-tert-butylphenol to precipitate out of the solution as a solid.

Finally, you will need to filter the solid p-tert-butylphenol from the solution and allow it to dry. Once the solid has dried, you can weigh it to determine the yield of your extraction.

Overall, the steps to isolate p-tert-butylphenol after extracting it into NaOH solution are as follows:

1. Separate the NaOH solution from any other compounds or impurities
2. Acidify the NaOH solution with a strong acid, such as HCl
3. Filter the solid p-tert-butylphenol from the solution
4. Allow the solid to dry and weigh it to determine the yield.

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Based on the structure of mescaline, I would expect to see around 12-14 signals in the 1H NMR spectrum. This is because there are multiple types of protons in the molecule that will give rise to distinct signals in the spectrum.

However, the exact number and position of the signals will depend on the specific conformation of the molecule and any interactions with the solvent or other molecules in the sample.

Mescaline is a naturally occurring psychedelic protoalkaloid of the substituted phenethylamine class, known for its hallucinogenic effects comparable to those of LSD and psilocybin.

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The species that will not be involved in the net ionic equation are Zn²⁺(aq) and NO₃⁻(aq).

In order to determine which species will not be involved in the net ionic equation, we first need to write out the complete ionic equation. This equation shows all of the soluble ionic species in the reaction as separate ions. The complete ionic equation for the given reaction is:

Zn²⁺(aq) + 2NO₃⁻(aq) + 2H⁺(aq) + S²⁻(aq) → ZnS(s) + 2H⁺(aq) + 2NO₃⁻(aq)

From this equation, we can see that all of the species are involved in the reaction, including NO₃⁻(aq), Zn²⁺(aq), S²⁻(aq), and ZnS(s). However, the question asks which species will not be involved in the net ionic equation.

The net ionic equation is obtained by canceling out any spectator ions, which are ions that are present on both sides of the equation and do not participate in the reaction. In this case, the spectator ions are Zn²⁺(aq) and NO₃⁻(aq), which are present on both sides of the equation. The net ionic equation is therefore:

S²⁻(aq) + 2H⁺(aq) → H₂S(aq)

From this equation, we can see that the species that will not be involved in the net ionic equation are Zn²⁺(aq) and NO₃⁻(aq). The species that will be involved in the net ionic equation are S²⁻(aq), H⁺(aq), and H₂S(aq).

In summary, the species that will not be involved in the net ionic equation are Zn²⁺(aq) and NO₃⁻(aq), while the species that will be involved in the net ionic equation are S²⁻(aq), H⁺(aq), and H₂S(aq).

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When 2 mole of Fe2O3 and 9 molecules of CO react, 6 moles of the each product are created.

The term "mole" refers to a common scientific measurement unit for atoms, molecules, and other very small particles.

The first one is supposed to produce a balanced chemical reaction in accordance with the situation supplied.

FeO3 + 3 CO 2 Fe + 3CO2 is the formula.

Because 2 moles of Fe2O3 reacted with 3 x2=6 moles of Co to produce Fe and CO2, CO was in excess and Fe2O3 was the limiting reagent.

Utilize the mole ratio to determine the moles of the each product.

That is the Fe2O3 mole ratio: Because Fe is a 1:2 element, the mole of Fe is 2x2=4 moles.

Because the mole ratio of Fe2CO3 to CO2 is 1:3, the moles of Co2 are 2 x 3 = 6 moles.

Therefore, 6 moles of the each product will be created when 2 moles or Fe2O3 react to 9 moles of CO.

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Answer:

Explanation:

At STP, 1 mole of hydrogen can occupy a volume of 22.4 liters. At STP, 3 moles of hydrogen can occupy a volume of 2×22. 4=44. 8 liters

Explanation:

As you can that water splits into molecules of hydrogen and 1 molecules of oxygen since , number of molecules of hydrogen released is double the number of molecules of oxygen released, volume occupied by hydrogen gas is double the volume occupied by oxygen gas

a. The balanced chemical equation for the reaction between Mg and N2 is:

3Mg(s) + N2(g) → Mg3N2(s)

From the equation, we can see that 3 moles of Mg reacts with 1 mole of N2 to produce 1 mole of Mg3N2. The molar mass of Mg is 24.31 g/mol, while the molar mass of N2 is 28.02 g/mol. To determine the mass of N2 required to react with 20 g of Mg, we can use the following calculation:

20 g Mg × (1 mol Mg/24.31 g) × (1 mol N2/3 mol Mg) × (28.02 g N2/1 mol N2) = 30.4 g N2

Therefore, 30.4 g of N2 is needed to completely react with 20 g of Mg.

b. Using the same balanced chemical equation as in part (a), we can see that 3 moles of Mg react to form 1 mole of Mg3N2. The molar mass of Mg3N2 is 100.93 g/mol. To determine the mass of Mg3N2 produced, we can use the following calculation:

20 g Mg × (1 mol Mg/24.31 g) × (1 mol Mg3N2/3 mol Mg) × (100.93 g Mg3N2/1 mol Mg3N2) = 83.4 g Mg3N2

Therefore, 83.4 g of Mg3N2 is produced from 20 g of Mg.

Answer: 20 , 40

I want know the answer now !

No, it is not safe to assume that any coloration seen in an animal is cryptic. While many animals have evolved to have coloration that helps them blend into their environment and avoid predators or attract mates, there are also many animals that have bright and conspicuous coloration for other reasons, such as warning predators of their toxicity or advertising their fitness to potential mates. Therefore, it is important to consider the specific context and behavior of the animal before making assumptions about the purpose of its coloration.

Cryptic coloration refers to an animal's ability to blend in with its environment, making it difficult for predators or prey to spot them. This can help the animal avoid being detected, making it easier to hunt or avoid being hunted. Cryptic coloration can take many forms, including camouflage, mimicry, or disruptive coloration, and is a common adaptation seen in many species of animals, including insects, birds, reptiles, and mammals.

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Answer:

d

Explanation:

they either gain valence electrons or share them depending on what elements or compound they are reacting with

Answer:

drying up

agricultural chemicals

Explanation:

Giant molecules are also referred to as macromolecules and polymers when numerous molecules are combined. These atoms are arranged in a three-dimensional structure and are joined by covalent bonds.

A giant molecule, also known as a macromolecule, is a usually large molecule crucial to biophysical processes, such as a protein or nucleic acid. It is made up of many atoms that are covalently bound. Large non-polymeric molecules including lipids and macrocycles, as well as biopolymers, are the most prevalent macromolecules in biochemistry. In addition to synthetic fibers, giant molecules can also be found in research materials like carbon nanotubes.

Different experts use different terminology for giant molecules. For instance, in biology, giant molecules refer to the four immense molecules that make up living things, while in chemistry, it refers to aggregates of two or more molecules that are held together by intermolecular forces rather than covalent bonds yet that is difficult to dissolve apart. The term giant molecule is frequently referred to as high polymer in British English.

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The heat of vaporization is higher than the heat of fusion because the transformation from solid to liquid needs the breaking of a few bonds while changing liquid to gas requires the disruption of intermolecular forces and bonds.

The heat of fusion of a substance can be described as the change in its enthalpy by giving energy or heat, to a specific quantity of the substance to change from a solid to a liquid keeping pressure constant.

The heat of fusion can be measured by the amount of heat that requires to be introduced to change its crystalline fraction into the disordered state. The heat of fusion is uniquely dependent upon the degree of crystallinity and the theoretical heat of fusion which is 100% crystalline.

Latent heat of vaporization can be described as the heat consumed when matter disintegrates, changing state from liquid to gas state at a temperature.

The heat of vaporization can be described as characterized as the measure of heat expected to change 1 g of a liquid into a fume, without a change in the temperature of the liquid.

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