what is the major organic product obtained from the following sequence of reactions? hno3 h2so4 naoh h2o nano2 hcl hbf4

Answer:b

Explanation:

Answer:

b

Explanation:

took test

Answer:

90.35 × 10²³ atoms

Solution:

1 molecules of H20 contains 3 atoms,.

And we know that one mole of any molecule contains 6.023 × 10²³ atoms from Avogadro's number,

hence 5 moles of H20 will contain = 5× 6.023 × 10²³ × 3 atoms = 90.35 × 10²³ atoms!

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Answer:

A net force acting on an object will change its motion. This means that a net force will change the kinetic energy of an object. The greater the force, the greater the change in motion and the kinetic energy of the object. Objects moving at a constant speed will have a constant kinetic energy.

Answer:

(CH3COO)2 + redP + Cl2 → ClCH2COOH + HCl

Explanation:

This is an example of halogenation of carboxylic acids at alpha carbon atom. In this reaction, red phosphorus and chlorine are treated with carboxylic acids having alpha hydrogen atom followed by hydrolysis to form alpha chloro carboxylic acid.

Answer:

This option is correct

Explanation:

Molecules are expressed in the form of Lewis in order to simplify their expression or chemical study, but this does not mean that they manifest or respect this form in all three dimensions since some are generally unstable, or even in the third dimension, these locations between atoms are respected for the characteristics of their unions.

The concentration of sodium cations in the solution is 0.941 M.

To determine the concentration of sodium cations in the solution, we need to first calculate the number of moles of sodium sulfate present and then divide it by the total volume of the solution.

Calculate the moles of sodium sulfate

Given that the mass of sodium sulfate is 100 grams and its molar mass is 142.04 g/mol, we can calculate the moles of sodium sulfate using the formula:

Moles = Mass / Molar mass

Moles = 100 g / 142.04 g/mol ≈ 0.704 mol

Calculate the concentration of sodium cations

In sodium sulfate, there are two sodium cations (Na+) for every one molecule of sodium sulfate (Na2SO4). Therefore, the number of moles of sodium cations is twice the number of moles of sodium sulfate.

Moles of sodium cations = 2 * Moles of sodium sulfate = 2 * 0.704 mol = 1.408 mol

Step 3: Calculate the concentration in Molarity

The concentration of sodium cations is given by the formula:

Molarity = Moles / Volume

Given that the volume of the solution is 0.5 L, we can calculate the concentration:

Molarity = 1.408 mol / 0.5 L = 2.816 M/L ≈ 0.941 M

Therefore, the concentration of sodium cations in the solution is approximately 0.941 M.

Molarity, denoted by M, is a measure of the concentration of a substance in a solution. It is defined as the number of moles of the solute divided by the volume of the solution in liters. In this case, we are calculating the molarity of sodium cations in a solution of sodium sulfate. To determine the molarity, we first calculate the number of moles of sodium sulfate based on its given mass and molar mass. Since there are two sodium cations in each molecule of sodium sulfate, we multiply the moles of sodium sulfate by 2 to obtain the moles of sodium cations. Finally, we divide the moles of sodium cations by the volume of the solution to obtain the molarity. Molarity is commonly used in chemistry to quantify the concentration of various substances in solutions.

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Answer:

Moles of tin = 0.37 mol

Explanation:

Given data:

Mass of tin oxide = 50 g

Moles of tin = ?

Solution:

Number of moles of SnO:

Number of moles = mass/molar mass

Number of moles = 50 g/ 134.71 g/mol

Number of moles = 0.37 mol

We can see there is only one mole of Sn is present in one mole of tin oxide.

Thus in 0.37 mol  of tin oxide,

0.37 mol × 1 = 0.37 mol of tin

The cycle that accounts for most of the cell cycle is the interphase cycle.

The cell is the simplest unit of the organism that can be able to sustain itself. There are several cycles that do go on in the cell.

The interphase cell cycle is the period of a cell's life during which it is actively growing and replicating its DNA. It is divided into three main stages: G1, S, and G2.

In G1, the cell grows and carries out normal functions. In S phase, DNA replication occurs. In G2, the cell checks for errors in replication and prepares for cell division.

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Exactly 50% of the data is greater than the first quartile in a box-and-whisker plot.

The first quartile represents the value below which 25% of the data falls. This means that the remaining 75% of the data falls above the first quartile. Since the box-and-whisker plot splits the data into equal quarters, the second quartile represents the median, which also has 50% of the data above it. Therefore, the remaining 25% of the data falls between the first and second quartile.

Thus, understanding the quartiles in a box-and-whisker plot allows us to determine the proportion of data that falls above or below a certain value. In this case, we can conclude that 50% of the data is greater than the first quartile.

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The valency of iron (Fe) in this equation is 2

While, the valency of chlorine is 1

Therefore, we know that iron wants to give away 2 electrons to attain octet configuration, and chlorine wants to get an electron to attain octet configuration.

Also while find the products the number of atoms is similar to the oppostie valency

Fe = 1 atom , Cl = 2 atoms

Which will form FeCl₂

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Answer:

Team 2

Explanation:

Team 1 pulls with a frce of 150N

Team 2 pulls with a force of 200N

In a tug-of-war, the goal is to pull the other team over a certain distance and this is determined by the force applied.

If the two team pulls with equal force, there wold be no net force and the teams stays in the same position.

In this case however, team 2 pulls with a force greater than team 1. There is a net force of 50N in favor of Team 2. This means team 2's force would neutralize that of team 1 and the excess force would be use in pulling Team 1

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The diagrams show the arrangements of carbon atoms in diamond and in graphite. The diamond is sp³ hybridized and have tetrahedral shape while graphite is sp² hybridized and is hexagonal ring shaped structure.

Diamond containing carbon atoms are strongly bonded chemically with other four carbons. The carbon atoms are sp³ hybridized and make percept tetrahedral shape. Diamond used in jewelry makin g. they are used by surgeons in the cataract surgery. diamond is hard, used for cutting or drilling rock.

Graphite containing carbon atom are form the weak bond with weak forces. the carbon are sp² hybridized and make a hexagonal ring shape structure. The force in graphite in weak that makes it useful material.  it is used as lubricant. it is used in pencil. used in making electrodes.

The diagrams show the arrangements of carbon atoms in diamond and in graphite. The diamond is sp³ hybridized and have tetrahedral shape while graphite is sp² hybridized and is hexagonal ring shaped structure.

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We want to write the nuclear equation for the beta decay of Aluminium-25.

The equation is:

\(^{25}_{13}Al \implies ^{25}_{14}Si + ^{0}_{-1}e\)

First, as you may know, in a beta decay the number of protons is increased by one. Aluminium has 13 of them, so after the decay, we will have 14 protons.

This means that the aluminium will transform into silicon, then the nuclear equation is just:

\(^{25}_{13}Al \implies ^{25}_{14}Si + ^{0}_{-1}e\)

Where the:

\(^{0}_{-1}e\)

Is an electron, which is the emitted particle in the beta decay.

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Answer:

Explanation:

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From your dear daughter or son

\([\text{H}^{+}] = 10^{-\text{pH}}\)

\([\text{H}^{+}] = 10^{-1.65}\)

\(\boxed{[\text{H}^{+}] = 2.2 × 10^{-2} \: M}\)

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Answer:

The formation of a precipitate

Explanation:

took thecquiz on edge. got it correct

The formation of a precipitate is a evidence that a chemical reaction has likely occurred.

A chemical reaction is a process in which chemical bonds between atoms to break and reorganize, to form other new substances.

Now lets check all option one by one

Option (A): a liquid slowly losing volume

Here change in volume occurred which is not a evidence of a chemical reaction.

So it is incorrect option.

Option (B): the formation of a precipitate

Here formation of precipitate is a evidence of a chemical reaction.

So it is correct option.

Option (C): boiling water releasing steam

Here formation of evaporation takes places which is not a evidence of a chemical reaction.

So it is incorrect option.

Option (D): a change in the shape of solid.

Here change in shape occurred which is not a evidence of a chemical reaction.

So it is incorrect option.

Thus, from we can say that the formation of a precipitate is a evidence that a chemical reaction has likely occurred.

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Fluorine is the most reactive halogen. Because fluorine has the smallest radius and most electronegative character.

The most reactive halogen is Fluorine. It is the most electronegative element that is bonded to any other element it will withdraw electron density towards its own core. This property has measured by Pauling electronegativity scale. It changes the reactivity and properties of fluorine containing molecules. These materials are used as non-fluorinated ones. Due to the high reactivity property, fluorine almost never appears in its free form. This is found in the reduced form as fluoride (F−) in compounds like fluorspar (CaF2), cryolite (Na3AlF6).

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Answer:

B no. is the answer because

Explanation:

So this can probably be the the answer

Hope my answer helps

Answer: electrons are found outside the nucleus.

Explanation:

The term "catalyst" best describes the role of platinum in the system.

Let us explore the role that platinum plays as a catalyst. Catalysts are defined as substances that speed up the rate of chemical reactions without changing their own mass or chemical properties in the process.

The amount of energy required to activate a process is reduced when catalysts are added. It is stated in the question that if the system incorporates platinum, then the amount of energy that is required is going to be lower. Therefore, platinum is functioning as a catalyst in this situation because it is lowering the required activation energy of the reaction.

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Answer:

1451.496

Explanation:

A unit of weight equal to 1,000 kilograms, or approximately 2,204.6 pounds

tons =

kg

______

1000.0

I believe the answer is B.) n=2

The balanced reaction that shows incomplete combustion is  2C4H10 + 5O2 → 4CO + 6H2O.

option D.

The balanced equation for incomplete combustion involves a reactant, usually a hydrocarbon fuel, reacting with a limited supply of oxygen to produce carbon monoxide (CO) instead of carbon dioxide (CO2) and water (H2O).

Out of the options given, the balanced equation that shows incomplete combustion is:

D. 2C4H10 + 5O2 → 4CO + 6H2O

This equation shows incomplete combustion because it produces carbon monoxide (CO) instead of carbon dioxide (CO2). The equation is balanced because there are equal numbers of atoms of each element on both the reactant and product sides of the equation.

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The type of substance that ionizes completely and creates hydronium ions when dissolved in water is a strong acid.

When a substance is classified as a strong acid, it means that it ionizes completely when dissolved in water. In other words, all of the acid molecules dissociate into ions. Specifically, strong acids readily donate protons (H⁺ ions) to the surrounding water molecules, leading to the formation of hydronium ions (H₃O⁺). The H⁺ ions released by the acid combine with water molecules to form H₃O⁺.

The process of ionization can be represented by a chemical equation. For example, let's take hydrochloric acid (HCl) as an example of a strong acid:

HCl(aq) → H⁺(aq) + Cl⁻(aq)

In this equation, HCl dissociates completely into H⁺ and Cl⁻ ions when it is dissolved in water. The H⁺ ions combine with water molecules to form H₃O⁺, which is responsible for the acidic properties of the solution.

It's important to note that strong acids are characterized by their ability to fully ionize in water, resulting in a high concentration of hydronium ions. This high concentration of hydronium ions contributes to the acidic nature of the solution and its ability to readily donate protons in chemical reactions.

On the other hand, weak acids do not completely ionize in water and exist in a state of equilibrium between the undissociated acid molecules and the ions. Weak acids partially dissociate, resulting in a lower concentration of hydronium ions compared to strong acids.

In summary, strong acids ionize completely when dissolved in water, generating hydronium ions (H₃O⁺) and contributing to the acidic nature of the solution.

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Answer:

A

Explanation:

Banana ripening in air is an example of oxidation reaction.

Answer:

true

Explanation:

Answer:

True there are a few.

Explanation: