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Compared with intelligence sailors, space operations specialists are which of the following?

more involved in tracking targets
more involved in aligning communications systems
more involved in disseminating intelligence results
more involved in analyzing classified material

The mechanism that accounts for the reaction of 4-bromotoluene with sodium amide to form a mixture of 3- and 4-aminotoluene is nucleophilic aromatic substitution by addition-elimination. The correct alternative id option 2.

In this mechanism, the sodium amide acts as a strong nucleophile and attacks the electrophilic carbon in the aromatic ring of 4-bromotoluene.

The resulting intermediate is a highly unstable negative charge on the carbon atom of the ring, which is stabilized by the electron-withdrawing effect of the bromine substituent. The negative charge is delocalized around the ring, making the intermediate highly reactive.

The intermediate then undergoes an elimination reaction, in which the bromine atom is displaced by the incoming nucleophile, the sodium amide.

This creates an unstable intermediate with a negative charge on the carbon atom and a positively charged nitrogen atom. This intermediate quickly rearranges to form the final product mixture of 3- and 4-aminotoluene.

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A down arrow (↓) or (s) are symbols that are used to represent the precipitation product produce in the reaction.

AgNO3 (aq) + KCl (aq) → AgCl (s) + KNO3(aq)

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Arranging the pairs from strongest to weakest attraction :

Covalent bonds are the strongest bonds because it involves the sharing of electrons between two binding atoms therefore the atoms are not dissociated easily. Also covalent bonds are divided into ;

While Ionic bonds involves the transfer of electrons from a donor atom to another atom and such bonds are easily broken and it is a weaker bond when compared to Polar and Nonpolar bonds. therefore polar molecule and ion bond pair is stronger than ion and ion pair.

Hence we can conclude that ranking  the pairs from strongest to weakest attraction is as follows;  Nonpolar molecule and Nonpolar molecule,  Polar molecule and Polar molecule,  Polar molecule and Ion,  Ion and Ion.

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Answer:

347.4 (19.3 mole)

Explanation:

CH4 + 2O2 = CO2 + 2H2O

1(mole) - 9.65(mole)

2(mole) - x ⇒x = 9.65*2=19.3

m=n*M ⇒ m= 19.3*(1*2+16)= 19.3*18=347.4(g)

The molecular formula of the compound is C12H14N₃O5.

To determine the molecular formula of the compound, we need to calculate the empirical formula first, which represents the simplest whole-number ratio of atoms in the compound.

Given the masses of carbon, hydrogen, nitrogen, and oxygen in the sample, we can calculate the moles of each element using their molar masses:

Moles of C = 0.900 g / 12.01 g/mol = 0.0749 mol

Moles of H = 0.0751 g / 1.008 g/mol = 0.0745 mol

Moles of N = 0.175 g / 14.01 g/mol = 0.0125 mol

Moles of O = 0.600 g / 16.00 g/mol = 0.0375 mol

Next, we need to find the simplest ratio of the moles by dividing each value by the smallest value:

Moles of C / 0.0125 = 5.992

Moles of H / 0.0125 = 5.960

Moles of N / 0.0125 = 1.000

Moles of O / 0.0125 = 3.000

Rounding these ratios to the nearest whole number, we get a ratio of 6:6:1:3, which corresponds to the empirical formula C6H6N1O3.

Finally, to determine the molecular formula, we divide the given molar mass of the compound (560 g) by the molar mass of the empirical formula (C6H6N1O3):

560 g / (6 * 12.01 g/mol + 6 * 1.008 g/mol + 1 * 14.01 g/mol + 3 * 16.00 g/mol) ≈ 560 g / 194.19 g/mol ≈ 2.88

Since the result is close to 3, we can multiply the empirical formula by 3 to obtain the molecular formula: C6H6N1O3 * 3 = C18H18N3O9.

However, none of the options provided match the calculated molecular formula.

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 The molecular formula for the molar mass of the unknown compound is 560g that consists of 0.900 g of carbon, 0.0751 g of hydrogen, 0.175 g of nitrogen, and 0.600 g of oxygen is C₂₄H₂₄N₄O₁₂ (Option A).

To determine the empirical formula, which involves converting the sample into moles. The moles of each element in the compound are calculated using their respective atomic masses.

The smallest number of moles is 0.0125 moles of nitrogen, which is the limiting reagent. As a result, the empirical formula is:

Therefore, the empirical formula is C₆H₆NO₃.

The empirical formula mass can be calculated by adding the molar masses of each element:

Total mass = 140.13

The molecular formula can be determined by comparing the empirical formula mass and the given molar mass. The molecular formula is the same as the empirical formula when the two values are equal. The ratio of the molecular formula mass to the empirical formula mass is equal to the integer value of n (number of empirical formula units):

n = molar mass/empirical formula mass

n = 560/140.13

n = 4

Therefore, the molecular formula is four times the empirical formula: C₂₄H₂₄N₄O₁₂ (Option A).

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Answer:

Al

Explanation:

It has 3.

Answer:

Option A:

Zn(s) + Cu^(2+) (aq) → Cu(s) + Zn^(2+)(aq)

Explanation:

The half reactions given are:

Zn(s) → Zn^(2+)(aq) + 2e^(-)

Cu^(2+) (aq) + 2e^(-) → Cu(s)

From the given half reactions, we can see that in the first one, Zn undergoes oxidation to produce Zn^(2+).

While in the second half reaction, Cu^(2+) is reduced to Cu.

Thus, for the overall reaction, we will add both half reactions to get;

Zn(s) + Cu^(2+) (aq) + 2e^(-) → Cu(s) + Zn^(2+)(aq) + 2e^(-)

2e^(-) will cancel out to give us;

Zn(s) + Cu^(2+) (aq) → Cu(s) + Zn^(2+)(aq)

Answer:

diffusion

Explanation:

Diffusion can be defined as the net movement of particles from a high concentration to a low concentration. This sounds like the most plausible word in this case.

Answer:

H2o water is correct please mark as brainliest

The specific heat capacity of a substance is the amount of energy required to raise the temperature of 1g of the substance by 1K.

Calculating the change in temperature:

By substituting what we are given into the equation to solve for the unknow x we have;

Answer: Energy needed is 449.35J

Answer:

He will burn 50 meters in 5 days

Explanation:

multiply 10 and 5.  

Answer:

80450 meters

Explanation:

To go from miles to meters multiply by 1609, so do 1609 x 10. Next, take that number times 5 because that is the number of days.

- Let me know if you need further explanation.

The rate of consumption of Ca is 0.0833 g/s.

The rate of consumption of Ca can be determined by dividing the mass of Ca consumed (2.50 g) by the time taken for the reaction to occur (30.0 seconds). This gives us a rate of 0.0833 g/s, indicating that 0.0833 grams of Ca are consumed every second during the reaction at the given temperature.

In chemical reactions, the rate of consumption or production of a substance is typically expressed in terms of the change in concentration over time. In this case, since the mass of Ca consumed is given, we can directly calculate the rate of consumption.

It's important to note that the rate of consumption of Ca may vary with temperature and other reaction conditions. The given rate applies specifically to the given temperature and the specific reaction conditions mentioned in the problem.

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Answer:

i dont think anybody is going to be able to do all of these lol

Explanation:

The nuclei of atoms become unstable when the repelling forces of the protons cannot be balanced by the number of neutrons in the nucleus. It then re-arranges itself randomly to a more stable configuration by emitting any of a series of particles. During radioactive decay, an atom does not collapse.

Since an atom is mostly empty space - that is it’s nucleus is relatively distant from the electron shells so, in the presence of extreme forces such as gravity inthe collapse of a large star, the inward pressures on the atom overcome the natural balance of the atomic structure and the ‘empty space’ disappears as nuclei are mashed together by the intense pressures and a neutron star is formed. Under even more external pressure, even the neutron star can collapse to form a black hole.

Answer: N2

blah blah blah blah blah blah

Answer:

A,C,E,F

Explanation:

Answer:

Explanation:

All matter is made up of atoms. ... These shells are actually different energy levels and within the energy levels, the electrons orbit the nucleus of the atom. The ground state of an electron, the energy level it normally occupies, is the state of lowest energy for that electron.

Answer:

Longitudinal wave

Explanation:

This is a longitudinal wave. Air is known to travel through a longitudinal wave. A wave is a disturbance that goes through a medium. As this musician blows into his trumpet, a vibration is formed, which moves in the direction as where the wave is coming from. Air moves in parallel direction as the wave

This is an example of a LONGITUDINAL WAVE.

In conclusion, this is an example of a LONGITUDINAL WAVE.

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Answer:

12113

Explanation:

step by step:no

Answer: 37.32

Explanation:

Nitrogen gas (N2) - 28.02 g/mol
Hydrogen gas (H2) - 2.02 g/mol
Ammonia gas (NH3) - 17.03 g/mol
Using the given mass of nitrogen gas, we can first calculate the number of moles of nitrogen gas present:

moles of N2 = mass of N2 / molar mass of N2

moles of N2 = 30.7 g / 28.02 g/mol

moles of N2 = 1.096 mol

From the balanced chemical equation, we know that one mole of nitrogen gas reacts with three moles of hydrogen gas to form two moles of ammonia gas. Since we have an excess of hydrogen gas, we can assume that all of the nitrogen gas will react to form ammonia gas. Therefore, we can calculate the number of moles of ammonia gas formed using the mole ratio from the balanced chemical equation:

moles of NH3 = (moles of N2) x (2 moles of NH3 / 1 mole of N2)

moles of NH3 = 1.096 mol x (2 mol/1 mol)

moles of NH3 = 2.192 mol

Finally, we can calculate the mass of ammonia gas formed using its molar mass:  

mass of NH3 = moles of NH3 x molar mass of NH3

mass of NH3 = 2.192 mol x 17.03 g/mol

mass of NH3 = 37.32 g

In endothermic reactions, greater power is absorbed whilst the bonds within side the reactants are damaged than is launched whilst new bonds are shaped withinside the products. Endothermic reactions are observed through a lower in temperature of the response mixture.

When a material undergoes an endothermic section change, the temperature stays constant. If warmness is added, the temperature behaves on this way due to the fact power is getting used to triumph over intermolecular forces.

Endothermic reactions, greater power is absorbed whilst the bonds within side the reactants are damaged than is launched whilst new bonds are shaped withinside the products. If a chemical response absorbs as a lot power because it releases, it's miles known as isothermic—there may be no power changes.

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Answer:

Oxide of manganese, Potassium permanganate, Manganese bromide and manganese oxide.

Explanation:

1. Manganese dioxide

Its chemical formula is \($MnO_2$\). It is +4 oxidation state. It is a black solid which is fairly stable.

2. Potassium permanganate

Its chemical formula is \($KMnO_4$\). It is commonly used in the laboratories as oxidizing agent. They appear black in color.

3 Manganese bromide

Its chemical formula is \($MnBr_2$\)

4. Oxides of manganese

Chemical formula is \($Mn_3O_4$\)

The most stable state of Manganese is +2 oxidation state.

Answer: True

Explanation: Its been around since 1561–1626 buddy.

The gas X is C₃H₈, which is propane.

  Organic substances known as hydrocarbons only produce CO2 and water when they burn. So, by the hit and trial method of x and y in the general formula of the reaction mentioned, we get propane.

  A three-carbon alkane, propane has the chemical formula C3H8. At room temperature and pressure, it is a gas, but it can be compressed into a liquid for transportation. It is a by-product of the processing of natural gas and the refining of petroleum and is frequently used as fuel.

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A- The pH of the original solution is 9.70,b- The expression is Kb = [HCOOH][OH⁻] / [HCOO⁻],C- The [OH⁻] in the solution is 4.69×10⁻¹¹ mol/L, d-The original pH of HCOONa is 9.70e- The pH of the solution halfway through the titration is 4.15,f- The pH at the equivalence point is 2.40.

a) To determine the pH of the original solution, we can use the Ka expression for the dissociation of HCOONa. The initial concentration of HCOONa is 0.200 mol/L, and since it completely dissociates, we can consider the concentration of HCOOH as 0.200 mol/L. Using the equation for the dissociation of HCOOH, HCOOH(aq) + H₂O(l) ⇌ HCOO⁻(aq) + H₃O⁺(aq), we can set up an ICE table. Initially, [HCOOH] = 0.200 mol/L, and there are no products. At equilibrium, [HCOOH] decreases by x, and [H₃O⁺] and [HCOO⁻] both increase by x. Using the Ka expression and the equilibrium concentrations, we can solve for x and calculate the pH.

b) The expression for Kb for the reaction HCOO⁻(aq) + H₂O(l) ⇌ HCOOH(aq) + OH⁻(aq) is Kb = [HCOOH][OH⁻] / [HCOO⁻].

To determine the expression for Kb, we consider the reverse reaction of the dissociation of HCOONa. Since HCOONa is a salt of HCOOH and a strong base, it hydrolyzes to form HCOOH and OH⁻ ions. The expression for Kb is derived from the equilibrium concentrations of HCOOH, OH⁻, and HCOO⁻.

c) Using the Kb expression and the equilibrium concentrations, we can substitute the known values into the expression and solve for [OH⁻]. The equilibrium concentration of HCOOH is 0.200 mol/L, and the concentration of HCOO⁻ is negligible compared to the initial concentration of HCOOH. Therefore, we can consider [HCOOH] ≈ 0.200 mol/L. Plugging in these values and solving for [OH⁻], we find the concentration of hydroxide ions in the solution.

d) To determine the original pH, we need to calculate the concentration of H₃O⁺ ions. Since the concentration of HCOOH is 0.200 mol/L, and it completely dissociates, the concentration of H₃O⁺ ions is equal to the concentration of HCOOH. Using the equation pH = -log[H₃O⁺], we can calculate the pH.

e-Halfway through the titration, the reaction involves equal moles of HCOONa and HCl. We can calculate the concentration of HCOOH formed by the reaction and use it to determine the concentration of H₃O⁺ ions. Using the equation pH = -log[H₃O⁺], we can calculate the pH.

f) At the equivalence point, all of the HCOONa has reacted with HCl to form HCOOH. The resulting solution contains only HCOOH and its conjugate base, HCOO⁻. We can calculate the concentration of HCOO⁻ and use it to determine the concentration of OH⁻ ions. Finally, using the equation pH = 14 - pOH, we can calculate the pH.

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Answer:

When hydrochloric acid comes into contact with calcium carbonate, the following chemical reaction ensues: CaCO3 + 2HCl → CaCl + CO2 + H2O, which provides acid neutralization alongside the formation of byproducts

Answer:

C) liquid

Explanation:

edge 2023

The number of grams of water that would be required to make a mixture that contained 60 grams of salt is 16 g.

The ratio shows the comparison of one thing to another. The ratio sign is ':' IT is used between two variables.

It is given that salt, baking soda, and water in a 20:15:10 ratio by mass are mixed

The mixture contains 24 grams of baking soda

Mass of Water = ?

Baking Soda: Water = 15:10

Let the mass of water is x

then the ratio is 24 : x

As both these ratios are equal

15 : 10 = 24 : x

15 / 10 = 24 / x

x = 24 x 10 / 15

x = 16 gm

Thus, the number of grams of water is 16 gm.

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6.0 × 10²³​ are the molecules  in 17 amu of ammonia, NH\(_3\). Therefore, the correct option is option D among all the given options.

The smallest recognizable unit in which a pure material may be split while retaining its composition and chemical characteristics is a molecule, which is a collection of two or more atoms.

Until portions made up of single molecules are reached, the split of a sample of a substance into increasingly smaller parts does not result in a change in either its makeup or its chemical characteristics.

molar mass of 1 mole of ammonia = 17 amu

1 mole of any substance contains 6.0 × 10²³​

6.0 × 10²³​ are the molecules  in 17 amu of ammonia, NH\(_3\).

Therefore, the correct option is option D among all the given options.

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Answer:

boom Corvette Corvette pop in the popular vet like that like that why you walk like that why you talk like that like I said boom boom boom I'm in the cold Mira, she needs to be back I remember seeing everyone Nee u i

Answer:

Explanation:

Ionic bond

Ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.