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7. Which molecule has two π bonds?

6. The heat of vaporization of water is 40.7 kJ/mol. How much heat is required to vaporize 36.0 g H₂O?

9. What hybridization is present in carbon of CH₄?

6. Which electron configuration represents oxygen (Z = 8)?

7. What is approximate bond angle in CH₄?

ScenarioBonding determines not just how atoms join, but how the resulting molecules behave in the real world. You are a materials chemist studying buckminsterfullerene (C₆₀) and other carbon allotropes for use in advanced nanomaterials and electronics. Your task is to analyze the bonding, molecular structure, and polarity of these molecules using concepts from Chapter 7. Understanding these properties will help your team design materials with specific mechanical, electrical, or chemical characteristics.Ionic and Covalent Bonding (7.1–7.2):Determine whether the molecule(s) you are studying are held together by ionic, covalent, or a combination of bonds.Explain the relevance of bond type to material stability and conductivity.

10. Which atom has the highest electron affinity?

5. What is the trend in metallic character across a period?

What does non-verbal communication include?

7. How many grams of NH₃ can be produced from 2.0 mol N₂ and excess H₂ in: N₂ + 3H₂ → 2NH₃?