This topic contains a solution. Click here to go to the answer

Author Question: Why is the H-F bond so much stronger than the H-I bond? A) H-F is a stronger bond because ... (Read 116 times)

fbq8i

  • Hero Member
  • *****
  • Posts: 527
Why is the H-F bond so much stronger than the H-I bond?
 
  A) H-F is a stronger bond because hydrogen and fluorine are more similar in nature than hydrogen and iodine. Both hydrogen and fluorine are diatomic and gases at room temperature.
  B) H-F is stronger bond because iodine forms a solid at room temperature and fluorine forms a gas. Also, iodine tends to sublime at room temperature.
  C) H-F is stronger because the fluorine atom is smaller and closer to the hydrogen atom causing greater attraction.
  D) Actually, H-I is stronger because the electronegativity of the iodine atom is smaller that that of the fluorine atom.

Question 2

Why can you determine wind direction by wetting your finger and holding it up in the air?
 
  A) Wind carries water molecules, so you can sense the water molecules condensing on the side of your finger that faces the wind.
  B) The wind hitting your finger cools the water down, slowing down evaporation. So the cooler side of your finger is windward.
  C) When a wet finger is held to the wind, evaporation is greatest on the windy side, which feels cool. The cool side of your finger is windward.
  D) Wind direction cannot be determined by wetting your finger because evaporation will occur evenly over the wetted finger.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jaygar71

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

C

Answer to Question 2

C





 

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

For a complete list of videos, visit our video library