Which of the following will undergo a condensation reaction to produce CH3CH2OCH2CH3

Answer:

Valence electrons of selenium will be placed in s and p-orbitals.

Forces affect how objects move. They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity. Remember that acceleration is a change in velocity. Let’s say an object is moving along a table on earth, suddenly the finite table ends, resulting in the object being present in the air, which means there is no normal contact force N to combat the force by gravity mg, which is why there is an acceleration downwards. This proves as a projectile motion since the direction of motion start changing from horizontal to vertical. Another example is one throwing an object up. It moves up and slows down, reaching its maximum point, leading to it starting to move downwards. This too is a change in motion.

Answer:

Explanation:

your answer is 351.96 i not a 100 per sent right but that should be it

CH₂=C(OH)CH(CH₃)CH₃ and CH₃C(OH)=CHCH(CH₃)₂  can be formed from 3-methyl-2-butanone.

Step 1: Start with the structure of 3-methyl-2-butanone. It has the formula: CH₃C(O)CH(CH₃)CH₃.

Step 2: Identify the alpha carbons. These are the carbons directly adjacent to the carbonyl carbon (C=O). In this case, there are two alpha carbons: one is bonded to the CH₃ group, and the other is bonded to the CH(CH₃)₂group.

Step 3: Remove a hydrogen from each of the alpha carbons and replace the carbonyl bond (C=O) with a double bond between the alpha carbon and the oxygen (C-OH).

Enol 1: CH₂=C(OH)CH(CH₃)CH₃
Enol 2: CH₃C(OH)=CHCH(CH₃)₂

These are the two possible enols that can be formed from 3-methyl-2-butanone.

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Invented by Bernard Launy and Jeremie Metz, flaws in the system in terms of energy inputs and outputs is the overbalanced wheel in which spokes are attached

Energy is the ability to do work to cause changes in matter

The overbalanced wheel perpetual motion machine is one of the most commonly proposed perpetual motion machine designed and wheel is designed to turn clockwise just after the weighted spoke reaches the top of the wheel and the spoke flip outward to the right exerting the force downward toward the ground and some energy will be lost from friction as the mechanism rub on the inner spoke and more energy will be lost when it transferred into sound and thermal energy

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Answer

0.1

Explanation

Given:

mass of HCl = 0.915g

volume of HCl = 250 mL

We know the molar mass of HCl = 36,458 g/mol

Solution

Step 1: covert the volume from mL to L

1 mL = 0.001 L

therefore 250 mL = 0.25 L

Step 2: Calculate the number of moles of HCl

n = m/M where n is the moles, m is the mass and M is the molar mass

n = 0.915 g/36,458 g/mol

n = 0.025 mol

Step 3: Calculate the molarity

C = n/V where C is the molarity, n is the moles and V is the volume

C = 0.025 mol/0.25 L

C = 0.1

Therefore, 50 mL of distilled water must be added to 0.5 mL of 0.1 M FeCl₃ to make it 0.001 M FeCl₃.

Distilled water is a type of purified water that has gone through a process of distillation, which involves boiling water and then condensing the steam into a separate container. This process removes impurities and minerals from the water, resulting in a very pure form of water. Distilled water is often used in laboratory experiments and medical procedures where purity is important. It can also be used in household appliances, such as irons and humidifiers, to prevent mineral buildup that can lead to damage or decreased performance.

Here,

To calculate the amount of distilled water that must be added to 0.5 mL of 0.1 M FeCl₃ to make it 0.001 M FeCl₃, we can use the dilution formula:

M1 x V1 = M2 x V2

where M1 is the initial concentration, V1 is the initial volume, M2 is the final concentration, and V2 is the final volume.

We can rearrange this formula to solve for V2, which represents the volume of water that must be added:

V2 = (M1 x V1) / M2

Plugging in the values we have:

M1 = 0.1 M (the initial concentration)

V1 = 0.5 mL (the initial volume)

M2 = 0.001 M (the final concentration)

V2 = unknown (the volume of water to be added)

V2 = (0.1 M x 0.5 mL) / 0.001 M

V2 = 50 mL

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Answer:

c)Mixtures are composed of two or more substances.

Explanation:

From the given choices, it is true that mixtures are composed of two or more substances.

The units for the rate constant of a reaction with the rate law, Rate = k[A][B], are given by M⁻¹s⁻¹.

In the rate law equation, Rate = k[A][B], the rate constant (k) represents the proportionality constant that relates the concentrations of reactants ([A] and [B]) to the rate of the reaction. The rate constant depends on the specific reaction and is determined experimentally.

To determine the units of the rate constant, we need to analyze the units of the rate and the concentrations of the reactants. In the given rate law equation, the rate is expressed in terms of concentration per unit time (M/s or mol/(L·s)).

The concentration of reactant A is represented by [A], which has units of M (molarity) or mol/L. Similarly, the concentration of reactant B is represented by [B] and also has units of M or mol/L.

By substituting the units into the rate law equation, we can deduce the units of the rate constant. The rate is given in M/s, and the concentrations [A] and [B] are in M. Therefore, the units of the rate constant k must cancel out the units of concentration, resulting in M⁻¹, and also account for the unit of time, which is s⁻¹.

Therefore, the correct answer for the units of the rate constant of a reaction with the given rate law is M⁻¹s⁻¹, which corresponds to option C.

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Answer:

ionic compounds are compounds that form when electrons are transferred from one atom to another, forming ions

Explanation:

Answer:

75,900 g

Explanation:

m=d×v

(1.38g/cm^3) × (55,000)

a. The pH of a 0.100 M propanoic acid (HC₃H₅O₂) solution can be calculated using the dissociation constant (Kₐ) of the acid. Since propanoic acid is a weak acid, it only partially dissociates in water. By using the equilibrium expression for the dissociation of the acid and solving for the concentration of H⁺ ions, we can determine the pH of the solution. The pH is found to be approximately 2.85.

b. Sodium propanoate (NaC₃H₅O₂) is a salt formed by the reaction of propanoic acid with sodium hydroxide. As a salt, it dissociates completely in water to produce sodium ions (Na⁺) and propanoate ions (C₃H₅O₂⁻). Since it does not undergo hydrolysis, the pH of a 0.100 M sodium propanoate solution remains basic with a pH of approximately 9.65.

c. Pure water (H₂O) undergoes autoprotolysis, resulting in the formation of equal concentrations of H⁺ and OH⁻ ions. This equilibrium leads to a neutral pH of 7.

d. A solution containing 0.100 M HC₃H₅O₂ (propanoic acid) and 0.100 M NaC₃H₅O₂ (sodium propanoate) allows for the establishment of an equilibrium involving the weak acid and its conjugate base. By considering the equilibrium reactions of propanoic acid with water and the hydrolysis of sodium propanoate, we can calculate the concentration of H⁺ ions and OH⁻ ions. The pH of this solution is approximately 4.87, indicating its slightly acidic nature.

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Answer:

The answer is "670.176 km".

Explanation:

Volume of the occupies of one  M & M= 0.5 \ cm^3\\\\

M&M 1 mole\(= 6.02 \times 10^{23}\\\\\)

Calculating volume of M& M mole\(= 0.5 \ cm^3 \times 6.02 \times 10^{23}=3.01 \times 10^{23}\ cm^3\\\\\)

Calculating the cube mole\(L^3= 3.01 \times 10^{23}\ cm^3\\\\\)

\(L=6.70176 \times 10^{7}\ cm\\\\\)

   \(=6.70176 \times 10^{7}\ cm \times \frac{1\ m}{100\ cm}\\\\=670176\ m\\\\=670.176 \ km\)

Therefore 18 tractor trailers wouldn't be sufficient.

2.20 g (to 3 sig. figs.) the maximum mass of water that could be produced by the chemical reaction. round your answer to significant digits.

hexane is C6H14 or put another way, as in the question CH3(CH2)4CH3. Actually, it is incorrect as depicted in the question.Nonetheless..

2C6H14 + 19O2 ===> 12CO2 + 14H2O ... balanced equation

moled hexane present = 2.6 g x 1 mole/130 g = 0.02 moles

moles O2 present = 5.29 g x 1 mole/32 g = 0.165 moles

Which reactant is limiting? Hexane = 0.02/2 = 0.01; O2 = 0.165/19 = 0.0087

Thus O2 is limiting...

moles of H2O that can be produced =0.165 moles O2 x 14 H2O/19 CO2 = 0.122 moles H2O

Mass of water( H2O) = 0.122 moles x 18 gm/mole = 2.20 g (to 3 sig. figs.)

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Answer:

Any unapposed interaction that will change the motion of an object.

Explanation:

My physics teacher had us write this down last week.

Answer

1.25M

Explanation

to calculate the molality we use the following equation

Molality = moles of solute / Kg of solvent

step 1: to find the moles of glucose we divide the mass by the Molar mass of glucose

moles = mass (g)/ Molar mass (g/mol)

= 18.0 g / 180,156 g/mol

= 0.0999 moles of glucose

now that we have moles of glucose, the next step is to convert 80.0g of water to Kg of water

1 kg = 1000g

Kg of water = 80g/1000g /kg

= 0.08Kg

Molality = 0.0999 mols / 0.08 kg

= 1.25M

The  mole fraction of potassium hydroxide, KOH , in a solution prepared from 56 g of potassium hydroxide and 700.0g of water is 0.025 .

calculation ,

number of mole of potassium hydroxide = 56g / 56.1 g/mol = 1 mol

number of mole of water  = 700 g/ 18 g/mol = 38.88 mol

mole fraction of potassium hydroxide is calculated by using formula as ,

= number of moles of KOH/number of moles of KOH + number of moles of water .

mole fraction of potassium hydroxide = 1/1 + 38.88 = 1/39.88 = 0.025

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Answer:

i'm pretty sure it's 'transport oxygen from the lungs to tissues around the body'

Answer:

Transportation of Oxygen from Lungs to Tissues

Answer:

4NO + 6H2O = 4NH3 + 5O2

Explanation:

Think about it this way: there are 4N's 4O's and 12H's and 10O's on both sides that's what makes it balanced

Hope this helps :)

Answer:

B (40º c)

Explanation:

Rubidium being silvery-white and melting at 39 ºC. Which means 40º C is the closest.

Answer:

it will become heterogenous and as well asit will dissociate into ions

also it will form base and evolve h2gas

Answer:

the mixture becomes more concentrated

Explanation:

this is due to more solute ions of potassium sulphate than solvent ions of water

In chemistry, a hydroxy or hydroxyl group is a functional group with the chemical formula -OH and consists of an oxygen atom covalently bonded to a hydrogen atom. In organic chemistry, alcohols and carboxylic acids contain one or more hydroxyl groups. In organic chemistry, an aldehyde is an organic compound containing a functional group with the structure R-CH=O. The functional group itself is sometimes called an aldehyde, but it can also be classified as a formyl group. Aldehydes are ubiquitous and play an important role in technology and biology. The group priority is -OCH3>OH>COOH>CHO. According to the F. Cahn-Ingold-Prelog system, a priority (1, 2, 3, or 4) is assigned in descending order of atomic number to the atoms directly bonded to the stereocenter the atom with the highest atomic number gets the highest priority.

The percent by volume of 50.00ml of a 50% NaCl solution added to more solvent to make 120.oo ml of solution is 20.83%.

Given,Initial volume of NaCl solution = 50.00mlInitial % of NaCl solution

= 50%Final volume of NaCl solution

= 120.00ml

Formula to calculate final % volume of NaCl solution = [(Initial volume of NaCl solution/ Final volume of NaCl solution) x Initial % of NaCl solution]

Accordingly, [(50.00ml/120.00ml) x 50%]

Final % of NaCl solution = 20.83%

Therefore, the percent by volume of 50.00ml of a 50% NaCl solution added to more solvent to make 120.oo ml of solution is 20.83%.

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Answer:

See the answer below

Explanation:

No, water cannot be used to remove stains from the permanent makers. However, alcohol can be used.

Since the inks of permanent markers are insoluble in water, trying to clean a stain created by a permanent marker with water would be a waste of effort. Only alcohols can be used to successfully remove the stain because the inks will dissolve in the alcohols.

The first step is to lessen the number of the organism which consumes clawcats. The second is to enhance the resources Clawncat requires to live.

Population is the total number of people living in a region (such as a nation or the planet), which is always changing due to births, immigration, and natural mortality.

There are two ways to boost the Clawcat population. The first step is to lessen the number of the organism which consumes clawcats. The second is to enhance the resources Clawncat requires to live, namely by expanding the plantation of Clawncat, providing enough irrigation, giving full access to sunshine, and increasing the richness of the soil through proper and effective fertilization.

Therefore, in the above given ways we can increase the population of Clawncat.

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The ways to identify the components necessary for a combustion reaction include:

This is referred to as burning and involves high-temperature exothermic redox chemical reaction.

This type of reaction involves the use of a gas such as oxygen which supports it and other flammable substances.

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