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Alex17521 [72]
3 years ago
10

How does substituting a hydrogen atom with a halogen in a hydrocarbon affect the resulting compound?

Chemistry
2 answers:
I am Lyosha [343]3 years ago
6 0

Substituting a hydrogen atom with a halogen in a hydrocarbon:


- the single bond remains single. A is wrong.


- the bond with Hydrogen is as strong as with a Halogen. C is wrong


- a hydrocarbon is saturated if there is no double bond. We do not know that so D is wrong.


- carbon will always have four valence electrons. E is wrong.



By elimination, the correct answer is B. The boiling point of the new compound increases.


Rom4ik [11]3 years ago
5 0

Answer:

Explanation:

halogen is heavier than hydrogen so substituting a hydrogen atom with a halogen in a hydrocarbon will raise its boiling point. ans is B.

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According to Le Châtelier's principle, what happens if heat is added to a system? apex
anzhelika [568]

Explanation:

Le Chatelier's principle states that for a long period of time if a system is at equilibrium and it is subjected to change in concentration, temperature, volume or pressure then the system shifts to a new equilibrium.

This change will partly counter acts the applied change.

Therefore, when heat is added to the system then equilibrium will shift to the side where temperature or heat is reduced again.

For example,    A + 2B \leftrightharpoons C + D      

Since heat is added to the system, hence, system will shift to the left side or we can say equilibrium will shift to the backward direction.

4 0
4 years ago
Read 2 more answers
Find the molarity of the following solution:
CaHeK987 [17]

Answer:

2.67 M

Explanation:

Molarity, which is the molar concentration of a substance, can be calculated using the formula;

M = n/V

Where;

M = molarity (M)

n = number of moles (mol)

V = volume (Litres)

Based on the provided information in this question, mass of lithium sulfate (Li2SO4) = 734g, volume = 2.5L

Using mole = mass/molar mass

Molar mass of Li2SO4 = 7(2) + 32 + 16(4)

= 14 + 32 + 64

= 110g/mol

Mole = 734/110

Mole (n) = 6.67moles

Molarity = n/V

Molarity = 6.67/2.5

Molarity = 2.668

Molarity of Li2SO4 in the solution is 2.67 M

5 0
3 years ago
Read 2 more answers
1.00 gram of a compound requires the following quantities of solvent to dissolve: 147.0 mL of water, 8.10 mL of chloroform, 37.0
vodomira [7]

Answer:

Partition coefficients are:

Chloroform-Water: 18.1

Diethyl ether-Water: 3.97

Benzene-Water: 1.71

You would choose chloroform to extract the compound

Explanation:

Partition coeffcient is defined as the ratio between solubility in g/mL of an organic compound and concentration of the solubility in an aqueous solution.

Solubility of the compound in the solvents is:

Water: 1g / 147.0mL = 6.80x10⁻³g/mL

Chloroform: 1g / 8.10mL = 0.123g/mL

Diethyl ether: 1g / 37.0mL = 0.0270g/mL

Benzene: 1g / 86.0mL = 0.0116g/mL

<h3>Partition coefficients are:</h3><h3>Chloroform-Water: 18.1</h3><h3>Diethyl ether-Water: 3.97</h3><h3>Benzene-Water: 1.71</h3><h3 />

The higher partition coefficient, the best extraction because the compound will have more affinity with this solvent in which the compound has the best solubillity.

Chloroform has the higher partition coefficient because has the higher solubility. That means chloroform is the solvent you would choose to extract the compound from an aqueous solution

3 0
4 years ago
Pliss help
Vladimir [108]

Answer: I believe it is artificial selection (not certain though)

Explanation: modern day dogs have been bread an domesticated to be used by humans in ways we see fit.

5 0
3 years ago
Compared to a sodium atom in the ground state a sodium atom in the excited state must have ?
kipiarov [429]
An electron with greater energy.

I hope this helps :)
6 0
3 years ago
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