Please help! 10 points!!

Chemistry

2 answers:

klemol [59]3 years ago

8 0

Hi,
The answer is HF since hydrogen bonds are can be formed only between Hydrogen and Fluorine, Oxygen or Nitrogen.

12345 [234]3 years ago

5 0

Both H-F and CH₃CH₂CH₂CH₂O-H have the potential to form hydrogen bonds.

Molecules with O-H, N-H, and F-H covalent bonds can form hydrogen bonds.

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Is albert better grffffrr#fffffrttt

Nezavi [6.7K]

Answer:

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Explanation:

4 0

3 years ago

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Dehydration is a reversible process. Which of the two set-ups, distillation or

Nata [24]

Answer:

Distillation will generate the most cyclohexene.

Explanation:

Let us assume following attached reaction for the synthesis of cyclohexene from cyclohexanol which attains equilibrium after certain time.

As shown in figure the cyclohexanol upon treatment with phosphoric acid undergoes dehydration reaction (removal of water) and produces cyclohexene. On the other hand cyclohexene reacts with water (hydration reaction) and produces cyclohexanol.

Now, if this reaction is allowed in a single flask it will attain equilibrium and will not generate the cyclohexene in high quantity. On the other hand if we apply Le Chatelier's principle ( removal of product moves the equilibrium in right direction) and distillate cyclohexene (boiling the cyclohexene to convert it into vapors and then collect it after condensation) will move the reaction in forward direction and will allow us to generate cyclohexene in high amounts.

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3 years ago

How many grams of h2 are needed to produce 10.78 g of nh3?

balu736 [363]

Ammonia is formed by a reaction between hydrogen and nitrogen as shown by the equation below.
N2(g) + 3H2(g) = 2NH3(g)
1 mole of ammonia contains 17 g
Therefore 10.78 g of ammonia are equivalent to 10.78/17 = 0.6341 moles
The mole ratio of hydrogen to ammonia is 3 : 2
Therefore, moles of hydrogen used will be 0.6341 × 3/2 = 0.9512 moles
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Thus, the mas of hydrogen will be 0.9512 moles × 2 = 1.9023 g

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3 years ago

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ivann1987 [24]

13.6
a) yes Pb is more reactive that Ag, Pb before Ag
b) no, Cu after H
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3 years ago

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murzikaleks [220]

Example:

sample density of gasoline, 20 g of weigth into 5 mL

Answer:

D = m / V

D = 20 g / 5 mL

D = 4 g/mL

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3 years ago