Draw all the structural isomers for the molecular formula c4h9br.

Answer:

c is the answer. hope this helps!

Answer:C.Only from hot to cold

Explanation:If you leave a hot tea out for a while or put it in the freezer it becomes cold which is Heat transfer.

In a nucleotide with the base adenine, the base is attached to the 1' carbon of the sugar molecule, and the nitrogen atom labeled as 9 in adenine is attached to the sugar molecule through a double bond. These attachments are essential for the structure and function of DNA.

In a nucleotide that contains the base adenine, the base is attached to the sugar molecule through a covalent bond. The sugar molecule in DNA is called deoxyribose, and it has a five-carbon backbone. The numbered carbon atoms in the sugar molecule are conventionally labeled with prime symbols ('), starting from the carbon closest to the base.

In this case, the base adenine is attached to the 1' carbon of the sugar molecule. The 1' carbon of the sugar molecule forms a covalent bond with the nitrogenous base through a glycosidic bond. This attachment is significant because it helps to form the backbone of the DNA molecule and determines the sequence of the genetic information.

Regarding the numbered nitrogen in the base that is attached to the sugar, adenine has two nitrogen atoms. The nitrogen atom labeled as 9 is attached to the sugar molecule. This attachment occurs through a double bond between the 9 nitrogen atom of adenine and the 1' carbon of the sugar molecule.

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When the humidity reaches 100%, it can lead to the moisture will condense into precipitation. Option D is correct.

When the humidity level reaches 100%, it means that the air is holding as much moisture as it can, and the air is saturated. As a result, any additional moisture that enters the air will cause condensation, which could lead to precipitation such as rain, snow, or fog.

High humidity can also make the air feel warmer than it actually is because it hinders the body's ability to cool down through sweating. Therefore, even if the air temperature does not increase, high humidity can make it feel more uncomfortable.

As for air pressure, humidity and air pressure are not directly related. However, changes in humidity can cause changes in air pressure. When water vapor condenses, it releases heat, which can cause air to rise and create low-pressure zones.

On the other hand, when water evaporates, it absorbs heat, which can cause air to sink and create high-pressure zones. Therefore, if there is enough moisture in the air to cause precipitation, it could lead to changes in air pressure.

Hence, D. The moisture will condense into precipitation is the correct option.

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--The given question is incomplete, the complete question is

"A weather forecast shows that the humidity will increase to 100% in the next couple of days. How might this affect the weather? A) The air pressure will decrease. B) The air temperature will increase. C) The moisture will cause more water to evaporate. D) The moisture will condense into precipitation."--

Explanation:

atomic number=88

atomic number =4

why is Ra larger than Be

hope it helps:)

Answer:

Ionic bonds are stronger than covalent bonds

Both polarity and the ionic bond have positive and negative charges.

The term ionic bond has to do with the kind of bond in which there is a transfer of electrons from one atom to the other. The fact that there is a transfer of electrons means that one of the atoms would be positively charged while the other atom would be negatively charged.

We say that a bond is polar if there is an unequal sharing of electrons between the bonds in the compound. This is not a total transfer of electrons but a partial positive and negative charge that is developed based on the proximity of the electron pair.

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One mole of  C₁₀H₈ contains the largest number of atoms ( option 4 )

First step : Determine the number  of atoms in each mole of the given elements

8 atoms of sulphur

∴Total atoms = 8 atoms

2 atom of Chlorine

∴ Total atoms = 2 atoms

2 atoms of Al

3 atoms of sulphur

12 atoms of oxygen

∴ Total = 17 atoms in one mole of AI₂(S0₄)₃

10 atoms of Carbon

8 atoms of hydrogen

Total atoms = 18 atoms

3 atoms of sodium

1 atom of P

4 atoms of Oxygen

Total atoms = 8 atoms

Hence we can conclude that One mole of  C₁₀H₈ contains the largest number of atoms in the set of elements listed.

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Answer:

The charge of a Strontium atom that has 10 electrons is 4.48 × 10⁻¹⁸ C

Explanation:

The atomic number of Strontium is 38

The electronic configuration of Strontium is given as follows;

1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶5s²

The atomic number of Strontium is 38 electrons in orbit and 38 protons in its nucleus and is electronically neutral

38e⁻ + 38e⁺ = 0

When there are only 10 electrons in an atom of Strontium, we have;

10e⁻ + 38e⁺ = +28e

The charge of a Strontium atom that has 10 electrons is +28e

+28e = 28×1.6×10⁻¹⁹ C = 4.48 × 10⁻¹⁸ C

The charge of a Strontium atom that has 10 electrons is +28e or 4.48 × 10⁻¹⁸ C.

Answer:

Pb3O4

Explanation:

According to this question, 3.425g of lead oxide was reduced to form 3.105g of lead in an experiment. Since lead oxide contains both lead (Pb) and oxygen (O) element,

Mass of lead oxide = 3.425g

Mass of lead = 3.105g

Mass of oxygen = (3.425g - 3.105g) = 0.320g

Next, we convert each mass value to mole by dividing by respective molar mass

Pb = 3.105g ÷ 207.2 = 0.0149mol

O = 0.320g ÷ 16 = 0.02mol

Next, we divide each mole value by the smallest (0.0149)

Pb = 0.0149mol ÷ 0.0149mol = 1

O = 0.02mol ÷ 0.0149mol = 1.342

Multiply each ratio value by 3 to get:

Pb = 1 × 3 = 3

O = 1.342 × 3 = 4.026

The whole number ratio, approximately, of Pb and O is 3:4, hence, their empirical formula is Pb3O4.

Answer: Where are the answers?

Explanation:

Answer:  2.56140351 atm

The equation we use is  Boyle's law,

P1V1 = P2V2

where the numbers 1 and 2 represent the first and second conditions. All we have to do is rearrange the equation to solve for the volume.

To obtain the final pressure of the gas(P2), use the equation

P2 = \(\frac{P1V1}{V2}\)

so P2 = \(\frac{2.92 * 5}{5.7}\) = 2.56140351 atm.

The final pressure of the gas = 2.56140351 atm.

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A species that contains a lone (unpaired) electron is referred to as a radical.

A radical is also known as a free radical which can be any atom, ion or molecule having atleast one unpaired valence electron.

When homolysis of a weak covalent bond takes place in presence of heat or sunlight (because breaking a bond requires energy) , two new radicals are formed. Also, in an ionic bond due to electron transfer between two atoms of different valencies and electronegativity, the respective atoms involved in that particular bond dissociates to form radicals. Radicals are also formed in reactions like addition, substution and elimination.

for example : The homolysis of the Br₂ bond forms two Br° radicals

Br-Br + hν → Br° + Br°

In the dissociation of the ionic bond NaCl, Na is the basic radical or cation and Cl is the acid radical or anion

NaCl → Na° + Cl°

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Answer:

It increases.

Explanation:

I hope this helps.

Answer:

Increases

Explanation:

Hope this helps :)

After solving the equation the volume of the gas in the container is 26.6L.

What is ideal gas law?

Pressure times volume are equal to moles times the universal gas constant times temperature, according to the ideal gas law formula.

PV=nRT

where P is for pressure

n = number of moles, where V = volume

T stands for temperature.

R is the gas constant

Energy units per temperature increase per mole are measured by the gas constant R. It is sometimes referred to as the molar gas constant, the ideal gas constant, and the universal gas constant.

Depending on the units you use in your computation, the gas constant R has a different value.

To convert degree celcious to kelvin, 55degree C+273= 328K

To convert pressure from mmHg to atm= 890/760=1.17atm

Number of moles of oxygen= 37.04/32=1.16mol

V= nRT/P

 =1.16*0.0821*328/1.17

 =26.6L

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The compound that would be formed if lithium and oxygen were placed together is Li₂O (lithium oxide), which is option B.

A chemical reaction is a process, typically involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.

When a metal and nonmetal reacts, the charge of the metal becomes the subscript of the nonmetal and vice versa.

According to this question, lithium metal reacts with oxygen nonmetal. Lithium is an element with a charge of +1 while oxygen has a charge of -1.

This suggests that the compound that will be formed if lithium and oxygen were placed together is Li₂O (lithium oxide).

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Answer:

metal atoms lose electrons to form positive ions (cations ) non-metal atoms gain electrons to form negative ions (anions )

i agree with this answer from the person above me: Augustlonley

Explanation:

*throws leaves in his face* Hey you wake up!!

Answer:

what is this question??

Answer:

Forming bonds releases energy and is exothermic.

pull electrons away from other elements

the more electronegative an element is the more greedy it is for electrons, florine has a score of 3.98 which is the highest on the table. Meaning that it will always take the electrons from the other element

2. O Breaking bonds releases energy and is endothermic.

3.  O pull electrons away from other elements

Fluorine is a member of Halogen family having one electron less to acquire stable noble gas configuration. Thus in order to attain one more electron it will gain one electron so as to be stably complete.

Thus the correct options are given above.

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Answer:

AL- waves

Explanation:

because it is famousable

The simple deposit multiplier is higher than the real-world money multiplier if households decide to keep some portion of each check they deposit in their possession as money.

For each unit of money a bank has in reserves, the deposit multiplier determines the most money that can be made. The portion of the deposit amount that can be lent out is represented by the deposit multiplier. The Federal Reserve's reserve requirement typically determines that proportion of real-world money multiplier.

The process by which banks lend money and the outcome is more money flowing in the economy is referred to as a "real-world money multiplier." That is, the amount of money is increased.

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The values of molarity and volumes for the given questions are  2,100 mL, 0.75 M, 0.1 M, 50,000 mL, 2.07 M and 1,200 mL respectively.

Relation between the molarity and volume of the solution will be shown by the following equation:
M₁V₁ = M₂V₂, where

M₁ & V₁ is the molarity and volume of one solution whereas M₂ & V₂ are the molarities and volume of the another solution.

V₂ = (750)(2.8) / (1) = 2,100 mL

M₂ = (0.15)(125) / (25) = 0.75 M

M₂ = (100)(0.15) / (150) = 0.1 M

V₂ = (10)(250) / (0.05) = 50,000 mL

M₂ = (1.5)(345) / (250) = 2.07 M

V₂ = (2.4)(500) / (1) = 1,200 mL

Hence required values of molarity and volume are 2,100 mL, 0.75 M, 0.1 M, 50,000 mL, 2.07 M and 1,200 mL respectively.

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Answer:

see explanation

Explanation:

number of moles = mass ÷ relative formula mass

e.g.

Calculate the number of moles of carbon dioxide molecules in 22 g of CO2.

Ar (relative atomic mass) of C = 12, Ar of O = 16

Mr (relative formula mass) of carbon dioxide = 12 + 16 + 16 = 44

number of moles = 22 ÷ 44 = 0.5 mol

Answer: D: both teams will remain in place.

Explanation: if both teams have the same amount of force, they will cancel each other out and stay in place.

Answer:

The three parts of the nucleotide building block of DNA are the sugar, the base and the phosphate.

Explanation:

Hope that helps!

Answer:

three parts of the nucleotide building block of DNA are the sugar, the base and the phosphate.

The amount of concentrated solution needed is (0.286 M)(65 mL) / C M, and the amount of water needed is 65 mL minus the volume of the concentrated solution.

To calculate the molarity of Kool Aid desired, we need to determine the number of moles of Kool Aid powder and sugar in the package. Since the molecular formula for sugar is C12H22O11, we can calculate its molar mass as follows:

Molar mass of C12H22O11 = (12 * 12.01) + (22 * 1.01) + (11 * 16.00)

= 144.12 + 22.22 + 176.00

= 342.34 g/mol

Given that the package contains 4.25 grams of Kool Aid powder, we can calculate the number of moles of Kool Aid powder using its molar mass:

Number of moles of Kool Aid powder = Mass / Molar mass

= 4.25 g / 342.34 g/mol

≈ 0.0124 mol

Similarly, for the sugar, which has a molar mass of 342.34 g/mol, we can calculate the number of moles of sugar using its mass:

Number of moles of sugar = Mass / Molar mass

= 192.00 g / 342.34 g/mol

≈ 0.5612 mol

Now, to calculate the molarity of the desired Kool Aid solution, we need to determine the volume of water. Given that 1.06 quarts is equal to 1 liter, and we have 2.00 quarts of water, we can convert it to liters as follows:

Volume of water = 2.00 quarts * (1.06 liters / 1 quart)

= 2.12 liters

To find the molarity, we use the formula:

Molarity (M) = Number of moles / Volume (in liters)

Molarity of Kool Aid desired = (0.0124 mol + 0.5612 mol) / 2.12 L

≈ 0.286 M

To prepare 65 mL of the desired molarity, we can use dilution calculations. We need to determine the volume of concentrated solution and the volume of water needed.

Let's assume the concentration of the concentrated Kool Aid solution is C M. Using the dilution formula:

(C1)(V1) = (C2)(V2)where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume.

Given that C1 = C M and V1 = V mL, and we want to prepare a final volume of 65 mL (V2 = 65 mL) with a final concentration of 0.286 M (C2 = 0.286 M), we can rearrange the formula to solve for the volume of the concentrated solution:

(C M)(V mL) = (0.286 M)(65 mL)

V mL = (0.286 M)(65 mL) / C M

So, the amount of concentrated solution needed is (0.286 M)(65 mL) / C M, and the amount of water needed is 65 mL minus the volume of the concentrated solution.

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A 16.200 g sample contains 4.800 g F, 4.900 g H, and 6.500 g C. the percent composition of hydrogen in the sample is 30.2%.

To find the percent composition of hydrogen in the sample, we need to calculate the mass of hydrogen in the sample and then divide it by the total mass of the sample and multiply by 100%.

Mass of fluorine (F) = 4.800 g

Mass of hydrogen (H) = 4.900 g

Mass of carbon (C) = 6.500 g

Total mass of the sample = 16.200 g

To calculate the mass of hydrogen in the sample, we simply look at the mass of hydrogen given:

Mass of hydrogen (H) = 4.900 g

To calculate the percent composition of hydrogen in the sample, we use the following formula:

Percent composition of hydrogen = (mass of hydrogen / total mass of sample) x 100%

Substituting the given values, we get:

Percent composition of hydrogen = (4.900 g / 16.200 g) x 100%

Percent composition of hydrogen = 30.2%

Therefore, the percent composition of hydrogen in the sample is 30.2%.

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1. The new volume of the gas will be 58 L

2. The new volume will be 105.65 mL

3. The new temperature will be -15.49 °C

4. The final pressure will be 28.48 KPa

The new volume of the gas can be obtained by using Charles' law equation as follow:

V₁ / T₁ = V₂ / T₂

24 / 265 = V₂ / 642

Cross multiply

265 × V₂ = 24 × 642

Divide both side by 265

V₂ = (24 × 642) / 265

New volume (V₂) = 58 L

The following data were obtained from the question

The new volume can be obtained by using the combined gas equation as follow:

P₁V₁ / T₁ = P₂V₂ / T₂

(0.5 × 250) / 323 = (1 × V₂) / 273

Cross multiply

323 × V₂ = 0.5 × 250 × 273

Divide both side by 323

V₂ = (0.5 × 250 × 273) / 323

New volume = 105.65 mL

The new temperature can be obtained by using the combined gas equation as follow:

P₁V₁ / T₁ = P₂V₂ / T₂

(450 × 2.52) / 310 = (600 × 1.57) / T₂

Cross multiply

450 × 2.52 × T₂ = 310 × 600 × 1.57

Divide both side by (450 × 2.52)

T₂ = (310 × 600 × 1.57) / (450 × 2.52)

T₂ = 257.51 K

Subtract 273 to obtain answer in °C

T₂ = 257.51 - 273 K

New temperature = -15.49 °C

The combined gas equation is given as follow:

P₁V₁ / T₁ = P₂V₂ / T₂

Inputting the given parameters, we obtained:

(47.81 × 0.45) / 298 = (P₂ × 0.825) / 325.5

Cross multiply

298 × 0.825 × P₂ = 47.81 × 0.45 × 325.5

Divide both sides by (345 × 150)

P₂ = (47.81 × 0.45 × 325.5) / (298 × 0.825)

Final pressure = 28.48 KPa

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Answer:

H+(aq) + OH-(aq) -> H2O(l)

Explanation:

This is neutralization