Estimate the molar concentration of 0.50 wt% (0.0050 mass fraction) benzene (C6H6) dissolved in liquid ethanol (C2H5OH) at 20°C. The density of liquid ethanol is 789 kg/m3 at 20°C. This solution of the solute benzene dissolved in the solvent ethanol is considered dilute.

Answer:

all of the above :)

have a nice day !

Explanation:

Answer:

"Critical thinking is the analysis of available facts, evidence, observations, and arguments to form a judgment. The subject is complex; several different definitions exist, which generally include the rational, skeptical, and unbiased analysis or evaluation of factual evidence. Critical thinking is self-directed, self-disciplined, self-monitored, and self-corrective thinking. It presupposes assent to rigorous standards of excellence and mindful command of their use. It entails effective communication and problem-solving abilities as well as a commitment to overcome native egocentrism and sociocentrism." - Searched it up on Wiki, so at least I stated this-.

I hope this helps..?

Answer:

Critical thinking in the area of chemistry requires students to not just think about the concepts and principles of but also how they can be applied to other areas. Critical thinking creates an area of overlapping or related information to the nature of a certain function.

Explanation:

its simple plus hope this helps

Answer:

DNA is a dynamic and adaptable molecule. As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation. Depending on how a particular mutation modifies an organism's genetic makeup, it can prove harmless, helpful, or even hurtful.

Explanation:

Explanation:

Transition of n 3→2 6→2

Name -H-α / Ba-α- H-δ- / Ba-δ

Wavelength (nm, air) -656.279 -410.1734

Energy difference (eV)- 1.89 -3.03

Color- Red -Violet

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Answer:

as the latitude increases, the intensity of the solar energy that strikes an area decreases,and climates become cooler

Explanation:

The higher the elevation the cooler the air therefore the climate becomes colder.

Answer:

0.531 moles of CO₂ are formed.

Explanation:

Given data:

Number of moles of CO = 0.531 mol

Number of moles of CO₂ formed = ?

Amount of oxygen = excess

Solution:

Chemical equation:

2CO + O₂    →    2CO₂

Now we will compare the moles of CO with CO₂.

              CO            :            CO₂

                2             :              2

              0.531        :          0.531

Thus, 0.531 moles of CO₂ are formed.

Answer:

The speed of wavelength is 3.0 ×10³ m/s.

Explanation:

Given data:

De Broglie wavelength = 132 pm (132×10⁻¹² m)

Speed of wavelength = ?

Solution:

Formula:

λ = h/mv

λ = wavelength

h = planck's constant

m = mass of proton

v = speed

now we will put the values in formula.

132×10⁻¹² m = 6.63 ×10⁻³⁴ j.s / 1.67 ×10⁻²⁷ kg × v

v =  6.63 ×10⁻³⁴ j.s / 1.67 ×10⁻²⁷ kg × 132×10⁻¹² m

j = kg m²/s²

v = 6.63 ×10⁻³⁴ kg m²/s / 1.67 ×10⁻²⁷ kg × 132×10⁻¹² m

v = 6.63 ×10⁻³⁴ kg m²/s / 220.44 ×10⁻³⁹ kg.m

v = 0.03×10⁵ m/s

v = 3.0 ×10³ m/s

The speed of wavelength is 3.0 ×10³ m/s.

Answer:

if organ systems failed to work together then the body will not function properly and we should not able to do a simple work and suffer from many others diseases.

Answer:

D.) solidify

Explanation:

The composition of a compound does not vary because it is made up of fix ratio by mass.

A compound is a chemical substance that is composed of more than one element that held together by chemical bonds and produces fix ratio by mass so we can conclude that the composition of a compound does not vary because it is made up of fix ratio by mass.

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Answer:

Please look in the paper ! <3

Answer:

A.) Thermal

Explanation:

I got it correct on founders edtell

Answer:

cheaper foods are usually more processed and unhealthy, therefore, poorer people are likelier to be obese.

Explanation:

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

From the question

mass = 2 kg

acceleration = 3 m/s²

We have

Force = 2 × 3

We have the final answer as

Hope this helps you

Answer: C

Explanation:

The force of gravity is proportional to the amount of mass in the system, and is inversely proportional to the separation distance between the two masses.

Adding mass to one of the objects would increase the gravitational field it produces, which in return increases the force of gravity.

Increasing the charge of one of the objects would technically add mass to the system, but it can be considered negligible. The adding of charge would cause an attraction between the two objects, but that is not the gravitational force. It is the Coulomb force.

Reducing the mass of one of the objects would decrease the gravitational field it produces, which would cause the force of gravity to decrease. This is the answer.

Moving the objects closer would cause the denominator of the force equation to decrease. A smaller denominator would cause the equality to increase, aka the gravitational force.

[tex]F=GMm/r^2[/tex]

An example would be oil. Oil is considered to be hydrophobic (which translates to "fear of water" so it is repelled by water). It floats on the top of water, which is why oil spills result in black blobs that float on the surface of the ocean rather than mix underneath the surface.

Answer:

0.1734

this is the answer to the question

The value of the equilibrium constant shows the relative amounts or concentrations of the reactants and products.

Answer: I think it’s either C or Dz

Explanation:

Due how it’s calculated.

The calculation that will not give the correct average atomic mass is  (60⋅12)+(40⋅13).

The average atomic mass is obtained as the sum of the products of the relative abundance of each isotope multiplied by its mass.

There are 6 C-12 isotopes and 4 C-13 isotopes. This gives a total of 10 isotopes of both types.

All calculations of average atomic mass are correct except (60⋅12)+(40⋅13).

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Answer:

The energy of a photon with a wavelength of 350 nm is 5.7×10−19 J .12‏/05‏/2

Explanation:

The insurance commissioner does not have the right to activate insurance companies' financial reserves.

The insurance commisioner is  soely in charge of the control of the bussiness of insurance in the company and seeks to ensure that prudent insurance policies are implemented by the government.

However, the insurance commissioner does not have the right to activate insurance companies' financial reserves.

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Explanation: When the little finger bends in towards the palm and can't be straightened out, it is known as streblomicrodactyly, streblodactyly or camptodactyly.

Little fingers range from perfectly straight to bending inwards at a sharp angle. It is not clear whether fingers fall into two discrete categories or there is a continuous range of pinky angle. Hersh et al. (1953) said that bent little fingers bend inward at an angle of 15 to 30 degrees. They found that only 4 out of a sample of 4,304 people had what they considered to be bent little fingers

If only extremely bent little fingers are considered, then the bent little finger trait is too rare to be useful for illustrating basic genetics in classrooms. If fingers with a more moderate bend are counted, then there is no clear dividing line between bent and straight, plus no evidence that the trait is genetic. In either case, you should not use bent little finger to demonstrate basic genetics.

 Bent Little Finger :  A dominant allele results in the end joint of the little finger of each hand bending inward.  Straight little fingers are a result of the recessive genotype.

Place your hands on a flat surface, palms down, and relax.  Check to see if the first joints of your little fingers are bent or straight.

There you go

Hope that helps :)

PS the picture is too fuzzy to read

Answer:

The missing force is the 17 newton

Explanation:

Answer:

b.

Explanation:

Explanation:

Using the Law of Conservation of mass,the mass of the reactants should be equal to the mass of the products after the reaction.

Answer:

The answer is A.

Explanation:

Neutrons and protons are located in the dense middle of the atom called the nucleus, and electrons are located on the electron cloud located outside of the nucleus.

Answer:

true

Explanation:

It is because it appears uniformly in the eye