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posledela
1 year ago
8

Which of the following molecules can form hydrogen bonds?

Chemistry
1 answer:
frosja888 [35]1 year ago
3 0

Hydrogen bonding is a type of intermolecular forces of attraction in which hydrogen atom is bonded to one of the most electronegative atoms. This gives a partial positive charge to hydrogen atom and a partial negative charge to the electronegative atom involved in the bonding. The electronegative atoms that can form hydrogen bonding are fluorine (F), nitrogen (N), and oxygen (O).

Therefore the correct option is,

A) NH3

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In an experiment, the density of an unknown liquid was calculated to be 0.78 g/ml. if the accepted value is 0.75 g/ml, calculate
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Percentage error is the relative error your measured value is from the true or accepted value. The formula for percentage error is written below:

Percentage error = |True Value - Measured Value|/True Value   * 100
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Percentage error = 4%
6 0
1 year ago
The temperature of the carbon dioxide atmosphere near the surface of venus is 475°c. calculate the average kinetic energy per mo
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Answer: <span>9330 j/mol
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The temperature of the gas is 475 ° Celcius which is equal to: 475 +273= 748 °K. The formula for kinetic energy of individual atoms would be

K= 3/2 * kB * T
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8 0
1 year ago
The Lewis structures of four compounds are given. In the first molecule sufur is the central atom. There are two oxygen atoms bo
vesna_86 [32]

Answer:

Compound 1. Sulfur Dioxide

Compound 3. Dichloromethane

Compound 4. Phosphorus Trichloride

<em>(figure attached)</em>

Explanation:

Compound 1. Sulfur Dioxide

Polar compound

Through the Lewis structure it is confirmed that SO₂ is a polar compound, because it is an asymmetric compound having two regions of different polarity. The lower region having oxygen groups is more electronegative then the upper region.

Compound 2. Carbon Dioxide

Non polar Compound

Through the Lewis structure it is confirmed that CO₂ is a non polar compound, because it is a symmetric compound having two regions of same polarity. The left region and the right region both contains oxygen groups having same electronegativity.

Compound 3. Dichloromethane

Polar compound

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Compound 4. Phosphorus Trichloride

Through the Lewis structure it is confirmed that PCl₃ is a polar compound, because three chlorine atoms attached to it and as we know that chlorine is a more electronegative element so it attracts the bonding pair of electrons towards itself which creates polarity.

8 0
1 year ago
What is the absolute structural necessity for an alcohol to be oxidized with chromium trioxide?
4vir4ik [10]
The alcohol being oxidized must not be a tertiary alcohol.

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8 0
2 years ago
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7.88  10^22 formula units 
5 0
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