What is the bond angle in a water molecule (H2O)?

Practice Questions

Q1
What is the bond angle in a water molecule (H2O)?
  1. 120 degrees
  2. 109.5 degrees
  3. 104.5 degrees
  4. 180 degrees

Questions & Step-by-Step Solutions

What is the bond angle in a water molecule (H2O)?
  • Step 1: Understand that a water molecule (H2O) consists of one oxygen atom and two hydrogen atoms.
  • Step 2: Recognize that the oxygen atom has two lone pairs of electrons that are not involved in bonding.
  • Step 3: Know that the shape of the water molecule is bent due to the presence of these lone pairs.
  • Step 4: Learn that the bond angle is the angle between the two hydrogen atoms in the water molecule.
  • Step 5: Find out that the bond angle in H2O is approximately 104.5 degrees because the lone pairs push the hydrogen atoms closer together.
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