what pressure, in atmospheres is exerted by 0.325 mol of hydrogen gas in a 14.08L container at 35°C ?

Answer:

Anything that has less density than water will float on water.

Explanation:

Come on! It's basic knowledge!

Answer:

A

Explanation:

Mutation can be defined as the change in the genetic sequence that is hereditary. The example of beneficial mutation can be the change of rabbit color to help him hide from the predators.

The mutation can be caused by the exposure of the gene sequence to the mutagen that cause the hereditary change.

The mutagens can be UV radiation, high energy, radiation, chemicals, or environmental factors.

The beneficial mutation can be given as the mutation in which the organism has been benefitted. The change in the color pf rabbit benefit him in hiding from the predators. Thus, option A has been the example of the beneficial mutation.

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Answer:

C5H8

Explanation:

The condensed formula is also known as structural formula of a chemical compound which shows a graphical representation of the molecular structure that represents, the arrangement of the atoms in the three-dimensional space.

The condensed formula of  2-pentyne is C5H8.

There is a triple bond between two carbon atoms at second carbon as shown in the figure.

Answer:

Option (3) 334J.

Explanation:

The following data were obtained from the question:

Mass (m) = 1g

Heat of fusion (ΔHf) = 334J/g

Heat (Q) =?

The heat released can be obtained as follow:

Q = m·ΔHf

Q = 1 x 334

Q = 334J.

Therefore, the heat released when 1g is converted to ice is 334J.

Answer:

Fluorine (F)

Explanation:

As you move to the right across the periodic table, the electronegativity increases.  As you move up a group, the electronegativity increases.

This means that the most electronegative element is fluorine.

Answer:

False. The goal of chemistry is to accumulate knowledge. Sometimes true. Biochemistry involves ... Sometimes true. Applied Chemistry is used to attain specific goals ... Applied Chemistry.

Explanation:

I really hope this helped :)

Answer:

469 gallons

Explanation:

From the question given, we were told that:

For every 32 miles, 1 gallon of gasoline is consumed.

With the above information, we can obtain the number of gallon of gasoline consumed by a car per year i.e 15000 miles

This is illustrated below:

If 32 miles consumed 1 gallon of gasoline,

Therefore, 15000 miles will consume = 15000/32 ≈ 469 gallons of gasoline.

Therefore, 469 gallons of gasoline is consumed by the average car each year

The

Answer: But Thats Aight

Explanation: 301

Answer:

B) It is based on repeated investigations.

Explanation:

If this is your question:

Which statement correctly describes a scientific theory?

A) It is accepted as true indefinitely.

B) It is based on repeated investigations.

C) It is equivalent to a scientific law.

D) It is accepted as false.

Answer:

The answer is C.

Explanation:

Plants get minerals from the soil and take in carbon dioxide from the air to photosynthesize in order to make their food .

The resources that may be used by autotrophs to make their food are soil and carbon dioxide. The (C) 3 and 4

Autotrophs include algae, plants, certain bacteria, and fungi. Autotrophs are the food chain's producers because they make their own energy and nutrients. Like the majority of autotrophs, kelp produces energy through a process known as photosynthesis.

Photosynthesis, the method used by plants and other autotrophic organisms to make food, converts carbon dioxide into glucose and oxygen, both of which are vital for life.

Soil gives nutrition and water to the plant and water is used in the process of photosynthesis and carbon dioxide is also used in the process.

Therefore, the correct option is (C) 3. Soil and 4. Carbon dioxide.

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Answer:

A mixture is a material composed of two or more simpler substances in chemistry.

Explanation:

Answer: The alkane containing 100 hydrogens will be [tex]C_{49}H_{100}[/tex]

Explanation:

Saturated hydrocarbons are defined as the hydrocarbons in which a single bond is present between carbon and carbon atoms.These are called as alkanes. The general formula for these hydrocarbons is [tex]C_nH_{2n+2}[/tex]

As given number of hydrogen atoms is 100, therefore the value of (2n+2) = 100

2n = 98

n = 49

Thus the formula for the alkane containing 100 hydrogens will be [tex]C_{49}H_{100}[/tex]

The formula for the alkane containing 100 hydrogens is [tex]C_{49}H_{100[/tex]

It refers to hydrocarbons where a single bond is present that lies between carbon and carbon atoms. These are known as alkanes. The general formula for these hydrocarbons is [tex]C_nH_{2n+2}[/tex]

Since the given number of hydrogen atoms is 100, so the value of (2n+2) = 100

So,

2n = 98

n = 49

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Answer:

Reaction types are :

Answer:

Synthesis and Combustion

Explanation:

For edge

Answer:

216 K

Explanation:

T2=T1P2/P1

Change C to K

Answer: covalent bond

Explanation: Yeah that's the answer

Answer:

The visible light spectrum is the section of the electromagnetic radiation spectrum that is visible to the human eye. Essentially, that equates to the colors the human eye can see. It ranges in wavelength from approximately 400 nanometers (4 x 10 -7 m, which is violet) to 700 nm (7 x 10 -7 m, which is red).

(Hope this helps) Sky

Answer:

Explanation:

V1= 600.0 mL

T1= 293 K

V2 unknown

T2= 333K

Charles law V1*T2=V2*T1

where V1 and T1 are the initial volume and temperature. V2 and T2 are the final temperature and volume.

V2=(V1*T2)/T1 = ( 600.0*333)/293= 682 mL (with significant figures)(681.911 mL before signifcant figures.)

Answer:

See the answer below

Explanation:

When a solution of iodine is mixed with a solution of tetrachloromethane, the mixture turns purple due to the formation of [tex]I_2(CCl_4)[/tex].

Iodine solution dissolves in carbon tetrachloride solution (another name for tetrachloromethane) due to the fact that both solutions are similarly non polar in nature. The equation of the reaction is as shown below:

            [tex]I_2 + CCl_4 --> I_2(CCl_4)[/tex]

Answer:

9.133×10^-6 m

Explanation:

A photon is the smallest discrete amount or quantum of electromagnetic radiation. It is the basic unit of all light. Photons are always in motion and, in a vacuum, travel at a constant speed to all observers of 3 x 10^8 m/s.

From the question, the following details were supplied;

Energy of the photon (E) = 4.61×10^−19 J

Speed of light (c) = 2.99×10^8 m/s

Plank's constant (h) = 6.626×10^−34 J⋅s

Wavelength of the photon (λ)= ??? The unknown

From

E=hc/λ

λ= hc/E

Substituting values

λ= 6.626×10^−34 × 2.99×10^8/ 4.61×10^−19

λ= 91.33×10^-7 m

λ= 9.133×10^-6 m

Explanation:

Thermal energy from the sun's heat, and mechanical energy from previous tides and waves. Oceans are one of the largest solar collectors.  

Answer:

because they take thousands or even millions of years to naturally replenish or replaced , which is not the average human lifetime

Answer:

Diluting an acid reduces the concentration of the H+ ions that cause acidity, while diluting a base reduces the concentration of the OH- ions that cause basicity.

Explanation:

The pH scale covers a range between 0 and 14 pH. A pH of exactly 7 is neutral. pH values greater than 7 are basic, while pH values less than 7 are acidic. The pH scale is logarithmic with a base of 10, meaning each integer pH value is 10 times more acidic or basic than the one preceding or succeeding it respectively. For dilution to decrease the acidity or basicity of a solution, the solvent being used must be less acidic or basic than this solution.

Alternatively, an acidic diluent may be used to dilute a basic solution, or vice versa, in a neutralization reaction. Because of the logarithmic nature of the pH scale, diluting a strong acid or base even slightly causes its respective pH to rise or drop considerably. Weak acids and bases with pH values close to 7 are correspondingly not as affected by dilution.

Dilution decreases the amount of acid or base molecules in the liquid thereby making the liquid less acidic or basic.

How basic or acidic a liquid is has to do with the amount of solute present in the liquid.

Note that the liquid is actually a solution. The acid or base was dissolved in water and two scenarios are possible;

The more the amount of acid or base present, the more acidic or basic the liquid is.

So, if I add more water in such a way that amount of water exceeds the amount of acid or base present in the liquid, the liquid is now less acidic or basic because it contains less acid or base molecules compared to water molecules.

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Answer:

0.21 M

Explanation:

Molarity is the calculation of the solution in which the number of solute per liter of the solutions. It is the most common measurement unit that is used to measure the concentration of the solution.

The molarity is the unit that is used to measure or calculate the volume of the solvent. The amount of solvent is used in the chemical reaction.

The amount of the two solvent in the same quantity is measured by the formula called c1v1 and c2v2.

Answer:

mercury, mars, venus

Explanation:

Answer:

12

Explanation:

alkyne formula is CnH2n-2

heptyne = 7

The total number of hydrogen atoms in a molecule of heptyne is twelve (12).

Heptyne belong to alkyne family with one triple bond and the molecular formula can be determined as follows;

CₙH2ₙ-2

Heptyne contains 7 carbons

C7H[2x 7 - 2] = C7H12

Thus, we can conclude that, the total number of hydrogen atoms in a molecule of heptyne is twelve-12.

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Answer:True i believe

Explanation:

Answer:

ITS A 25% trust me

Answer:

I think it is 25%

Explanation:

Answer:

22 g of CO2 are obtained from decomposition of 50 g of CaCO3

Explanation: