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aniked [119]
3 years ago
10

Polyhydroxyl alcohols are alcohols with more than one hydroxyl group attached to a carbon sequence. True or false?

Chemistry
1 answer:
Neko [114]3 years ago
3 0
Answer is: True.

Example for p<span>olyhydroxyl alcohol is glycerol.</span>
Glycerol (1,2,3-Propanetriol, glycerine<span> or glycerin) is a simple polyol (it has three hydroxyl group) compound with formula (OH-CH</span>₂-CH(OH)-CH₂OH or C₃H₈O₃). 
The glycerine <span>backbone is found in all lipids known as triglycerides. (ester derived from glycerol and three fatty acids).
Glycerol is soluble in water and it is hygroscopic.</span>
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The vapor pressure of methanol is 143 mmhg. identify the best reason to explain why methanol spontaneously evaporates in open ai
goldfiish [28.3K]

Answer/Explanation:

Methanol has a molecular weight (32.04 g/mol), low-boiling point and because of its low boiling point, methanol readily evaporates at room temperature.

Under these specified non-standard conditions, the partial pressure of methanol is lower than its vapor pressure and this explains the reason for the spontaneous evaporation exhibited by methanol.

6 0
3 years ago
The reason it takes so much heat to melt ice or evaporate water is that extra energy is required to break _______ bonds between
mart [117]

It takes so much heat to melt ice or evaporate water because extra energy is required to break the hydrogen bonds between water molecules.

<h3>Hydrogen bond</h3>

Hydrogen bonding is an electrostatic force of attraction between a hydrogen atom found between a pair of other atoms having a high affinity for electrons.

Hydrogen bonds cause water to be exceptionally attracted to each other creating cohesion.

It takes so much heat to melt ice or evaporate water because extra energy is required to break the hydrogen bonds between water molecules.

Find out more on Hydrogen bond at: brainly.com/question/12798212

4 0
2 years ago
N2__+3H2= 2NH3
ch4aika [34]
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5 0
3 years ago
Which material is likely to slow the flow of electric charges the most? Explain
vesna_86 [32]

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The material that would most likely slow the flow of electricity is plastic.

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Plastic is a conductor. A conductor is something that stop or slows down the flow of electricity.

4 0
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Which of the following would most likely result in an increase in reaction rate? placing the reactants on a hotplate
puteri [66]

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placing the reactants on a hot plate

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If the temperature goes up, the reaction rate will increase. Because the particle will move faster and makes the kinetic energy larger.

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