●● Draw the Lewis structure of NH,OH and then choose the appropriate pair of molecular geometries of the two central atoms. Your answer choice is independent of the orientation of your drawn structure. N-O H-- H Click to edit molecule H A) bent (120°) / trigonal pyramidal B) trigonal / bent (120°) C) trigonal pyramidal / bent (109.5°) D) linear / tetrahedral E) linear / trigonal planar +

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Question 3 of 24**

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**Question:**

Draw the Lewis structure of NH₂OH and then choose the appropriate pair of molecular geometries of the two central atoms. Your answer choice is independent of the orientation of your drawn structure.

**Diagram:**

- **Lewis Structure of NH₂OH:**
  The molecule NH₂OH is illustrated with the following connections:
  - Nitrogen (N) is bonded to two Hydrogen (H) atoms and one Oxygen (O) atom.
  - Oxygen (O) is bonded to one more Hydrogen (H) atom.
  - The Lewis structure shows the lone pairs of electrons on Nitrogen and Oxygen.

**Answer Choices:**

A) bent (120º) / trigonal pyramidal

B) trigonal / bent (120º)

C) **trigonal pyramidal / bent (109.5º)**

D) linear / tetrahedral

E) linear / trigonal planar

**Explanation:**

The question requires identifying the molecular geometries of the central atoms in NH₂OH:

1. **Nitrogen (N)** in NH₂OH has 3 bonding pairs and 1 lone pair of electrons, leading to a **trigonal pyramidal** geometry.
  
2. **Oxygen (O)** bonded to two atoms (Hydrogen and Nitrogen) and has 2 lone pairs, resulting in a **bent** geometry with a bond angle of approximately **109.5º**.

**Correct Answer:**

C) **trigonal pyramidal / bent (109.5º)**
Transcribed Image Text:**Question 3 of 24** --- **Question:** Draw the Lewis structure of NH₂OH and then choose the appropriate pair of molecular geometries of the two central atoms. Your answer choice is independent of the orientation of your drawn structure. **Diagram:** - **Lewis Structure of NH₂OH:** The molecule NH₂OH is illustrated with the following connections: - Nitrogen (N) is bonded to two Hydrogen (H) atoms and one Oxygen (O) atom. - Oxygen (O) is bonded to one more Hydrogen (H) atom. - The Lewis structure shows the lone pairs of electrons on Nitrogen and Oxygen. **Answer Choices:** A) bent (120º) / trigonal pyramidal B) trigonal / bent (120º) C) **trigonal pyramidal / bent (109.5º)** D) linear / tetrahedral E) linear / trigonal planar **Explanation:** The question requires identifying the molecular geometries of the central atoms in NH₂OH: 1. **Nitrogen (N)** in NH₂OH has 3 bonding pairs and 1 lone pair of electrons, leading to a **trigonal pyramidal** geometry. 2. **Oxygen (O)** bonded to two atoms (Hydrogen and Nitrogen) and has 2 lone pairs, resulting in a **bent** geometry with a bond angle of approximately **109.5º**. **Correct Answer:** C) **trigonal pyramidal / bent (109.5º)**
### Question 4 of 24

**What commonly encountered polymer is produced by the polymerization of tetrafluoroethylene?**

A) polyester

B) kevlar

C) rayon

D) teflon

E) silk

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**Explanation:**
This question tests the knowledge of polymers and their origins. Teflon is produced by the polymerization of tetrafluoroethylene. Tetrafluoroethylene (TFE) is a fluorocarbon and its polymerization leads to the formation of polytetrafluoroethylene (PTFE), commonly known by its brand name, Teflon. PTFE is known for its non-stick properties and is widely used in cookware, industrial applications, and more.
Transcribed Image Text:### Question 4 of 24 **What commonly encountered polymer is produced by the polymerization of tetrafluoroethylene?** A) polyester B) kevlar C) rayon D) teflon E) silk --- **Explanation:** This question tests the knowledge of polymers and their origins. Teflon is produced by the polymerization of tetrafluoroethylene. Tetrafluoroethylene (TFE) is a fluorocarbon and its polymerization leads to the formation of polytetrafluoroethylene (PTFE), commonly known by its brand name, Teflon. PTFE is known for its non-stick properties and is widely used in cookware, industrial applications, and more.
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