the pKa of Evan's oxazolidinone (benzyl) is ?

The event that would result in a plant being able to produce more food for itself is C. The presence of more light.

Even with lots of water, carbon dioxide, and the right temperature, a plant cannot photosynthesize very quickly in the absence of sufficient light. The rate of photosynthesis rises as light intensity rises.

In photosynthesis, carbon dioxide and water are one of the reactants. The rate of photosynthesis will therefore increase as carbon dioxide concentration rises.

Enzymes regulate the chemical events that mix water and carbon dioxide to create glucose. Temperature has an impact on the rate of photosynthesis just like it does with any other enzyme-controlled reaction.

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Options for this question include:

The number of the hydrogen atoms that would be required from the diagram is 10.

A Saturated compound has all its carbon atoms connected by single bonds, and each carbon atom is bonded to the maximum number of hydrogen atoms possible. This arrangement allows the compound to have no available or unsaturated bonds for additional atoms.

The compound that is shown must be butane as such the number of the hydrogen atoms that it contains is a total of ten.

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Answer:

cancer

Explanation:

cancer is caused by abnormal cell division mechanism

Answer:

Cancer

Explanation:

I did a quiz

Answer:

copper

Explanation:

coal, petroleum, and natural gas are all related to fossil fuels.

Copper is not a fossil fuel and the correct option is option 1.

Fossil fuels are compound mixtures made of fossilized plant and animal remnants from millions of years ago. The creation of fossil fuels—either oil, natural gas, or coal—from these fossils is determined by the type of fossil, the amount of heat, and the amount of pressure.

Fossil fuels are a non-renewable source of energy. Most of the energy used by us is obtained by the burning of fossil fuels. These fossil fuels are used up at a faster rate. They cannot be regrown at a scale compared to their consumption.

Therefore, Copper is not a fossil fuel and the correct option is option 1.

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12 valence electrons in the Lewis structure of CH2O. we need to add up the valence electrons for each atom in the molecule.

To determine the number of valence electrons in the Lewis structure of CH2O; C (carbon) has 4 valence electrons, H (hydrogen) has 1 valence electron, and O (oxygen) has 6 valence electrons.

So, for the Lewis structure of CH2O, we have:

1 carbon atom with 4 valence electrons

2 hydrogen atoms with 2 valence electrons (1 each)

1 oxygen atom with 6 valence electrons

Adding these up, we get:

4 + 2(1) + 6 = 12

Therefore, there are 12 valence electrons in the Lewis structure of CH2O.

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When a hydrogen atom is in an excited state, it emits a photon of wavelength 486 nm , the initial and final energy state is n=4 and n=2, respectively.

The spectral line emitted by hydrogen atoms as they transition from the n=3 to n=2 energy level is known as the H-alpha line. The wavelength of the emitted light can be determined using the Rydberg formula:

1/λ=RZ²(1/nf²-1/ni²),

where R is the Rydberg constant (1.096776 x 10⁷ m⁻¹), Z is the atomic number (1 for hydrogen), nf is the final energy level, and ni is the initial energy level.

The transition from n=3 to n=2 is represented by nf=2 and ni=3.

Plugging in the values, we get:

1/λ=R(1)²(1/2²-1/3²)λ=656.3 nm

This is the wavelength of the H-alpha line emitted by hydrogen atoms as they transition from the n=3 to n=2 energy level. However, the given wavelength is 486 nm.

Therefore, the transition from n=4 to n=2 can be considered, since the hydrogen atom can make a jump to any lower energy level and release a photon.Using the same formula, the transition from n=4 to n=2 gives:1/λ=R(1)²(1/2²-1/4²)λ=486.1 nmTherefore, the initial and final energy levels of the hydrogen atom are n=4 and n=2, respectively.

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Considering the Boyle's law, the volume if the pressure is 8 atm is 0.75 L.

Boyle's law establishes the relationship between the pressure and the volume of a gas when the temperature is constant. Boyle's law states that the pressure of a gas in a closed container is inversely proportional to the volume of the container.

Mathematically, this law says that the product of the pressure and the volume always has the same value:

P×V=k

where

Analyzing an initial state 1 and a final state 2, it is fulfilled:

P₁×V₁= P₂×V₂

In this case, you know:

Replacing in Boyle's law:

2 atm× 3 L= 8 atm× V₂

Solving:

(2 atm× 3 L)÷ 8 atm= V₂

0.75 L= V₂

Finally, the volume is 0.75 L.

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Answer:

The answer is D

The last one

Answer and Explanation

There are 2 significant figures.

In specific case of a 50/50 mixture of urea and cinnamic acid,  the melting point of the mixture would be expected to be lower than 133 degrees Celsius. without specific information about eutectic behavior of urea and cinnamic acid, it is difficult to predict the exact melting point of  mixture.

When two substances are mixed together, the resulting melting point of the mixture can be different from the individual melting points of the pure substances. In some cases, a eutectic mixture can form, which has a lower melting point than either of the components.

In the specific case of a 50/50 mixture of urea and cinnamic acid, both of which have a melting point of 133 degrees Celsius, it is possible that a eutectic mixture could form. If a eutectic mixture does form, the melting point of the mixture would be expected to be lower than 133 degrees Celsius.

However, without specific information about the eutectic behavior of urea and cinnamic acid, it is difficult to predict the exact melting point of the mixture. The formation of a eutectic mixture depends on factors such as the composition, molecular interactions, and possible solid-state reactions between the two substances.

To accurately determine the melting point of the 50/50 mixture of urea and cinnamic acid, experimental data or knowledge about the specific properties and behavior of the mixture would be required. Only through testing or accessing relevant literature on the system could one determine the precise melting point of the mixture.

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If you get to addicted to it It would be a substance because you would be addicted to it ( like being addicted to a drug) . If your not addicted and drink beer to have a good time it is mixture.

A compound is a special type of molecule where the atoms that form the molecule are of different elements.

Answer:

4.2 moles Cl2 ( 2 Cl / 1 Cl2 ) = 8.4 mol Cl atoms.

Explanation:

Hope this helps.

Answer: The statement, you've just prepared an aqueous solution is true.

Explanation:

When one or more number of substances are dissolved in a solvent like water then solution formed is called an aqueous solution.

For example, when a hot drink is made by dissolving a teaspoon of instant coffee and a teaspoon of sugar in a cup of hot water is an aqueous solution.

Here, both coffee and sugar are solute whereas hot water is the solvent.

Thus, we can conclude that the statement, you've just prepared an aqueous solution is true.

Answer:

88 mL of water.

Explanation:

Data obtained from the question include the following:

Volume of alcohol = 12 mL

Percentage of alcohol = 12%

Volume of water =..?

We can thus, obtain the volume of water needed to make 12% of the alcohol solution as follow:

Percentage of the solution = 100%

Percentage of alcohol = 12%

Percentage of water =?

Percentage of water = percentage of solution – percentage of alcohol

Percentage of water = 100 – 12

Percentage of water = 88%

Since 12% of alcohol is equivalent to 12 mL of alcohol, therefore 88% of water will also be equivalent to 88 mL.

Therefore, 88 mL of water is needed to make 12% of alcohol.

Answer:

Red is C

Yellow is A

Green is B

Explanation:

Density of liquid A = 5 g / 2.5 ml = 2 g/ml

Density of liquid B = 8 g / 3.0 ml = 2.67 g/ml

Density of liquid C = 6 g/ 4.0 ml = 1.5 g/ml

So the liquid with higher density will be at the bottom

so

Red is C

Yellow is A

Green is B

Answer:

15 protons

Explanation:

The atomic number always equals the number of protons inside the nucleus, so if the atomic number is 15, that means 15 protons are present.

The temperature of the gas is approximately 100.8 K. To find the temperature of an ideal gas, we'll use the formula for the internal energy of an ideal gas (U) and the ideal gas law. The given terms are the internal energy (U = 3770 J), the number of moles (n = 3 moles), and the pressure (P = 1 atm, which is approximately 101325 Pa).

First, we'll use the internal energy formula for an ideal gas: U = (3/2)*nRT, where R is the universal gas constant (8.314 J/mol·K). We're solving for the temperature (T), so we'll rearrange the formula to isolate T:

T = (2/3)*(U / nR)

Now, plug in the given values:
T = (2/3)*(3770 J / (3 moles × 8.314 J/mol·K))
T = (2/3)*(3770 J / 24.942 J/mol·K)
T = (2/3)*(151.213 K)
T = 100.809 K

Therefore, the temperature of the gas is approximately 100.8 K. This calculation assumes the gas behaves ideally and allows us to determine the temperature given the internal energy, number of moles, and pressure.

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Answer:

Here's what I got.

Explanation:

Interestingly enough, I'm not getting

0.0341% w/v

either. Here's why.

Start by calculating the percent composition of chlorine,

Cl

, in calcium chloride, This will help you calculate the mass of chloride anions,

Cl

−

, present in your sample.

To do that, use the molar mass of calcium chloride, the molar mass of elemental chlorine, and the fact that

1

mole of calcium chloride contains

2

moles of chlorine atoms.

2

×

35.453

g mol

−

1

110.98

g mol

−

1

⋅

100

%

=

63.89% Cl

This means that for every

100 g

of calcium chloride, you get

63.89 g

of chlorine.

As you know, the mass of an ion is approximately equal to the mass of the neutral atom, so you can say that for every

100 g

of calcium chloride, you get

63.89 g

of chloride anions,

Cl

−

.

This implies that your sample contains

0.543

g CaCl

2

⋅

63.89 g Cl

−

100

g CaCl

2

=

0.3469 g Cl

−

Now, in order to find the mass by volume percent concentration of chloride anions in the resulting solution, you must determine the mass of chloride anions present in

100 mL

of this solution.

Since you know that

500 mL

of solution contain

0.3469 g

of chloride anions, you can say that

100 mL

of solution will contain

100

mL solution

⋅

0.3469 g Cl

−

500

mL solution

=

0.06938 g Cl

−

Therefore, you can say that the mass by volume percent concentration of chloride anions will be

% m/v = 0.069% Cl

−

−−−−−−−−−−−−−−−−−−−

I'll leave the answer rounded to two sig figs, but keep in mind that you have one significant figure for the volume of the solution.

.

ALTERNATIVE APPROACH

Alternatively, you can start by calculating the number of moles of calcium chloride present in your sample

0.543

g

⋅

1 mole CaCl

2

110.98

g

=

0.004893 moles CaCl

2

To find the molarity of this solution, calculate the number of moles of calcium chloride present in

1 L

=

10

3

mL

of solution by using the fact that you have

0.004893

moles present in

500 mL

of solution.

10

3

mL solution

⋅

0.004893 moles CaCl

2

500

mL solution

=

0.009786 moles CaCl

2

You can thus say your solution has

[

CaCl

2

]

=

0.009786 mol L

−

1

Since every mole of calcium chloride delivers

2

moles of chloride anions to the solution, you can say that you have

[

Cl

−

]

=

2

⋅

0.009786 mol L

−

1

[

Cl

−

]

=

0.01957 mol L

−

This implies that

100 mL

of this solution will contain

100

mL solution

⋅

0.01957 moles Cl

−

10

3

mL solution

=

0.001957 moles Cl

−

Finally, to convert this to grams, use the molar mass of elemental chlorine

0.001957

moles Cl

−

⋅

35.453 g

1

mole Cl

−

=

0.06938 g Cl

−

Once again, you have

% m/v = 0.069% Cl

−

−−−−−−−−−−−−−−−−−−−

In reference to the explanation you provided, you have

0.341 g L

−

1

=

0.0341 g/100 mL

=

0.0341% m/v

because you have

1 L

=

10

3

mL

.

However, this solution does not contain

0.341 g

of chloride anions in

1 L

. Using

[

Cl

−

]

=

0.01957 mol L

−

1

you have

n

=

c

⋅

V

so

n

=

0.01957 mol

⋅

10

−

3

mL

−

1

⋅

500

mL

n

=

0.009785 moles

This is how many moles of chloride anions you have in

500 mL

of solution. Consequently,

100 mL

of solution will contain

100

mL solution

⋅

0.009785 moles Cl

−

500

mL solution

=

0.001957 moles Cl

−

So once again, you have

0.06938 g

of chloride anions in

100 mL

of solution, the equivalent of

0.069% m/v

.

Explanation:

i think this is it

Answer:

The answer is sophisticated earthquake early-warning systems, increasingly accurate storm forecasting, and innovative flood risk and flood mitigation projects provide communities with the tools they need to respond to impending hazard events, and infrastructure design and engineering improvements help to reduce the damage suffered

Explanation:

I hope this helps

Answer:

Since it has 2 valence electrons

Explanation:

Answer: Confidence, strength, potential

Explanation:

\( \huge \boxed{ \fcolorbox{black}{pink}{Answer}}\)

20 Distinguishing Personality Traits of High-Performing Athletes

1. Self Confidence. “Self-Confidence” isn't just a phrase for cheesy motivational posters. ...

2. Strong Sense of Motivation. It takes more than a shiny medal or hefty check to motivate the world's best athletes. ...

3. Inner Desire to Succeed. ...

4. Natural Goal Setter. ...

5. Self-Discipline. ...

6. Optimism. ...

7. Sense of Belonging. ...

8. Natural Leader.

Answer:

The answer is "Comet".

Explanation:

The comets were interstellar frozen gas of snowballs, stone, and debris orbiting the sun, which are also the size of average towns while frozen. As even the orbit of the comet passes near the sun, it warms up and spreads dust and gas into a big floating head greater than most stars.  

Answer: A Planet

Explanation:

The International Astronomical Union defines a planet as a spherical object that orbits a star. Planets clear the neighborhood around their orbits (i.e., no other bodies share their orbits).

Answer:

30 grams

Explanation:

I got 40 wrong so I picked 30

Answer:

30 grams

Explanation:

I did the ck12

Answer:

CH2O = 12 + 2 + 16 = 30

90 /30 = 3

3 x (CH2O) = C3H6O3

Explanation:

Answer:

C3H6O3

Explanation:

Castle learning

Answer:

electrons have a negative charge

Explanation:

Answer:

Electrons

Explanation:

Answer:

Physicians do not have to treat every ill patient. However they must uphold their ethics (eg. do no harm, confidentiatlity, etc.).

Explanation:

Primary source:

Hippocratic Oath (translation since it's originally in Greek)

I swear by Apollo the physician, and Asclepius, and Hygieia and Panacea and all the gods and goddesses as my witnesses, that, according to my ability and judgement, I will keep this Oath and this contract:

To hold him who taught me this art equally dear to me as my parents, to be a partner in life with him, and to fulfill his needs when required; to look upon his offspring as equals to my own siblings, and to teach them this art, if they shall wish to learn it, without fee or contract; and that by the set rules, lectures, and every other mode of instruction, I will impart a knowledge of the art to my own sons, and those of my teachers, and to students bound by this contract and having sworn this Oath to the law of medicine, but to no others.

I will use those dietary regimens which will benefit my patients according to my greatest ability and judgement, and I will do no harm or injustice to them.

I will not give a lethal drug to anyone if I am asked, nor will I advise such a plan; and similarly I will not give a woman a pessary to cause an abortion.

In purity and according to divine law will I carry out my life and my art.

I will not use the knife, even upon those suffering from stones, but I will leave this to those who are trained in this craft.

Into whatever homes I go, I will enter them for the benefit of the sick, avoiding any voluntary act of impropriety or corruption, including the seduction of women or men, whether they are free men or slaves.

Whatever I see or hear in the lives of my patients, whether in connection with my professional practice or not, which ought not to be spoken of outside, I will keep secret, as considering all such things to be private.

So long as I maintain this Oath faithfully and without corruption, may it be granted to me to partake of life fully and the practice of my art, gaining the respect of all men for all time. However, should I transgress this Oath and violate it, may the opposite be my fate.

The 45-degree line in the Keynesian model represents the equilibrium level of income or output.

In the Keynesian model, the 45-degree line represents the equilibrium level of income or output. It shows the points where aggregate expenditure (AE) equals aggregate output (Y). The line is called the 45-degree line because it represents the points where AE and Y are equal, and at these points, the AE line intersects the 45-degree line at a 45-degree angle.

The Keynesian model assumes that in the short run, aggregate expenditure is the primary determinant of output, and changes in aggregate expenditure lead to changes in income or output. When AE is greater than Y, there is an unplanned decrease in inventories, leading to an increase in production and income. Conversely, when AE is less than Y, there is an unplanned increase in inventories, leading to a decrease in production and income.

The 45-degree line helps to illustrate the equilibrium level of income or output in the Keynesian model.

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The 45-degree line in the Keynesian model represents the equilibrium level of output, which occurs when the total amount of goods and services produced in the economy equals the total amount of goods and services demanded by consumers, firms, and the government.

The Keynesian model is an economic model that was developed by John Maynard Keynes, a British economist. This model emphasizes the role of government intervention in the economy, particularly during times of economic downturn or recession.

The 45-degree line is drawn at a 45-degree angle on a graph that plots aggregate demand and aggregate supply. This line represents the point at which the total amount of goods and services demanded equals the total amount of goods and services produced. At this point, the economy is said to be in equilibrium.

In the Keynesian model, the government plays an important role in ensuring that the economy remains in equilibrium. During times of economic downturn or recession, the government may use fiscal policy to stimulate demand for goods and services.

This can be done by increasing government spending, cutting taxes, or both. By increasing demand for goods and services, the government can help to stimulate economic growth and reduce unemployment.

Overall, the 45-degree line in the Keynesian model represents the equilibrium level of output, which occurs when the total amount of goods and services produced equals the total amount of goods and services demanded.

This line is an important tool for understanding the role of government intervention in the economy, particularly during times of economic downturn or recession.

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Answer:

should be half wich is 750

Explanation:

Answer:

dic

Explanation: