The temperature of evaporation is much higher for water than for alcohol. Without knowing more about the chemistry of alcohol, which of the following is the most logical chemical explanation for this phenomenon? Group of answer choices Ionic bonds form between alcohol molecules. These are the weakest type of bond and are easier to break than the hydrogen bonds between water molecules. Fewer hydrogen bonds form between alcohol molecules. As a result, less heat is needed for alcohol molecules to break away from solution and enter the air. Alcohol has a higher surface tension than water. This means that alcohol molecules can easily break away from other alcohol molecules and evaporate at a lower temperature. Alcohol molecules are more cohesive than water molecules. This means that as alcohol molecules evaporate, they pull other alcohol molecules into the air along with them.

Answer:

6x

Explanation:

Answer:

Δ

H

=

−

389 kJ

Answer:

A. The Coriolis Effect bends them

Explanation:

The Coriolis Effect is a force that causes objects and other things that are not attached to the ground and which are moving over a large distance around the Earth such as the trade winds or air planes, to take an apparent curved path in their motion rather than moving in a straight line, due mainly to the rotation of the Earth

The Coriolis Effect is named after French mathematical physicist Gaspard-Gustave de Coriolis

Answer:

1.c 2.a.3.d 4.a

Explanation:

that is tge answer

Answer:

neutral atoms

Explanation:

Answer:

The answer is b. It is less than 890 kJ/mol, and the amount of energy required to break bonds is less than the amount of energy released in forming bonds.

Explanation:

i just took the test sorry i could not help you before but i hope this helps someone!

The statement which is correct about H for the products and the comparison of the energy in bonds is that the amount of energy required to break bonds is less than the amount of energy released in forming bonds.

This is defined as an attraction between atoms, molecules etc which enables the formation of chemical compounds.

Since is less than 890 kJ/mol , the amount of energy required to break bonds is less than the amount of energy released in forming bonds thereby making option A the most appropriate choice.

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Answer:

Outermost layer of skin: Epidermis

Raised line of skin: friction ridges

Fingerprint pattern: Whorl

Small details in ridges: minutia

(I believe this is correct)

Answer:

Part (1a): The number of moles are 2.14 moles.

Part (1b): The number of moles are 12.2 moles.

Part (1c): The number of moles are 0.545 moles.

Part 2: The number of molecules are 1.38 × 10²⁵.

Part 3: The number of moles are 5.65 moles.

Part 4: The number of atoms are 1.81 × 10²⁴.

Part 5: The number of molecules are 1.20 × 10²⁶.

Explanation:

According to the mole concept:

1 mole of substance contains 6.022 × 10²³ number of atoms or molecules.

Part (1a): 1.29 × 10²⁴ hydrogen atoms in H

As, 6.022 × 10²³ number of hydrogen atoms present in 1 mole

So, 1.29 × 10²⁴ number of hydrogen atoms present in [tex]\frac{1.29\times 10^{24}}{6.022\times 10^{23}}=2.14[/tex] mole

Part (1b): 7.36 × 10²⁴ oxygen atoms

As, 6.022 × 10²³ number of oxygen atoms present in 1 mole

So, 7.36 × 10²⁴ number of oxygen atoms present in [tex]\frac{7.36\times 10^{24}}{6.022\times 10^{23}}=12.2[/tex] mole

Part (1c): 3.28 × 10²³ Na atoms

As, 6.022 × 10²³ number of Na atoms present in 1 mole

So, 3.28 × 10²³ number of Na atoms present in [tex]\frac{3.28\times 10^{23}}{6.022\times 10^{23}}=0.545[/tex] mole

Part 2:

As, 1 mole of oxygen contains 6.022 × 10²³ number of molecules

So, 23.0 moles of oxygen contains 23.0 × 6.022 × 10²³ = 1.38 × 10²⁵ number of molecules

Part 3:

As, 6.022 × 10²³ number of H₂SO₄ molecules present in 1 mole

So, 3.4 × 10 number of H₂SO₄ molecules present in [tex]\frac{3.4\times 10}{6.022\times 10^{23}}=5.65[/tex] mole

Part 4:

As, 1 mole of Na contains 6.022 × 10²³ number of atoms

So, 3.0 moles of Na contains 3.0 × 6.022 × 10²³ = 1.81 × 10²⁴ number of atoms

Part 5:

As, 1 mole of O₃ contains 6.022 × 10²³ number of molecules

So, 200 moles of O₃ contains 200 × 6.022 × 10²³ = 1.20 × 10²⁶ number of molecules

Answer:

thanks

Explanation:

u a real one 4 tht

Answer:

bromine (br)

Explanation:

edg 2021

Answer:

Heterogeneous mixture...is the answer

The dude above me is right. I thought he was wrong, so I put A but it turns out he was right!

Answer:

B. Theoretical yield

Explanation:

Hope its help:)

Answer:

B)  Consumer COnsumer COnsumer

Answer:

Consumer

Explanation:

It is a consumer

Answer:

Explanation:

The kinetic energy of an object can be found by using the formula

[tex]k = \frac{1}{2} m {v}^{2} \\ [/tex]

m is the mass

v is the velocity

From the question we have

[tex]k = \frac{1}{2} \times 1500 \times {40}^{2} \\ = 750 \times 400 \\ = 300000 \\ \\ \\ \\ = 3.0 \times {10}^{6} \: \: joules[/tex]

Hope this helps you

Answer:

See explanation

Explanation:

According to Avogadro's law, the volume of a given mass of gas is directly proportional to the number of molecules of gas present at constant temperature and pressure.

Hence; V1/n1 = V2/n2

The implication of this is, if there were X molecules present and the volume of the balloon is halved, the number of molecules of gas present is also halved. So, we now have X/2 number of gas molecules present in the balloon.

This is in accordance with the statement of Avogadro's law.

Answer:

d

Explanation:

As + O2 -------->as2o3

When the tectonic plates try to walk to burger king, they always bump into each other because of how close together they are. Once in a while, a tectonic plate will get so pis sed of, it will form a volcano to let out its anger.

Answer:

According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs. Hence, the correct statement is arrhenius acid produces hydrogen ions in solution.

Answer:

0.0188

Explanation:

using pv=nRt

where v--volume

p pressure

n number of moles

t temperature in kelvin

R molar gas constant=8.314atmmoldm^-3k^-1

4.972 × 9.583 =n × 8.314 × (31.8 + 273)

note I changed 31.8c to kelvin

making n subject of the formula

n=(4.972 × 9.583)/(8.314 ×(31.8 + 273)

n=(4.972 × 9.583)/(8.314 ×(304.8))

n=0.0188 moles

Answer:

you have walked 69 steps but your current location is -13

Answer:

Water molecule is polar.

Explanation:

The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules.

Answer:

1.06 × 10^5 J

Explanation:

We have to use the formula;

log(k2/k1) = Ea/2.303 ×R (1/T1 - 1/T2)

Given that;

k1 = 1.10 × 10-4 s-1

k2= 1.02 × 10-3 s-1

Ea=?

R=8.314 Jmol-1K-1

T1= 470. °C

T2= 510. °C

Hence;

log(1.02 × 10-3 s-1/1.10 × 10-4 =Ea/2.303 ×8.314(1/470 -1/510)

0.9672 = Ea/19.122(2.13 - 1.96) × 10^-3

0.9672= Ea/19.122(0.17) × 10^-3

0.9672= 1.7 ×10^-4 Ea/19.122

19.122 × 0.9672 = 1.74 × 10^-4Ea

Ea= 19.122 × 0.9672/1.74 × 10^-4

Ea= 18.495/1.74 × 10^-4

Ea= 1.06 × 10^5 J

Answer:

D. The potential energy of the products is greater than the potential energy of the reactants.

UwU

Answer:

20.0% w/v A

Explanation:

A 20.0 w/V...

Answer:

Carbon monoxide

Explanation:

The molecule has the carbon and oxygen atoms in equal amounts.

Answer: Oxygen is a gas at room temperature.

Answer:

Atoms and molecules can be deflected by magnetic fields - provided the atom or molecule is first turned into an ion. Electrically charged particles are affected by a magnetic field although electrically neutral ones aren't. The atom or molecule is ionised by knocking one or more electrons off to give a positive ion.

Explanation:

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The atom must first be ionized.

The mass spectrometer is an important analytical tool in chemistry. It is used to identify atoms and molecules.

However, the atom or molecule to be analysed must first be converted into an ion.

This happens when the instrument imparts an electrical charge to the molecule or atom  then the electrically charged ions are read as electrical current.  The ion is accelerated towards a detector which analyses the deflected ions.

https://brainly.com/question/4780013

Answer:

Explanation: We don't see lunar eclipses every cycle because the Moon's orbit is tilted five degrees from Earth's orbit around the Sun. And when an eclipse occurs the earth passes directly between Sun and Moon.

Answer: 2x10^-4

Explanation:

This is easy stuff