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1. What are the structural differences between ionic and molecular compounds?

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shakti
83 diapositives · 1K Views · Oct 20, 2014

1. What are the structural differences between ionic and molecular compounds?. 2. How do those differences affect their chemical formulas?. The chemical formula for a covalent compound is called a molecular formula ;. The chemical formula for an ionic compound is called a formula unit.

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1. What are the structural differences between ionic and molecular compounds?
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  1. 1. What are the structural differences between ionic and molecular compounds? 2. How do those differences affect their chemical formulas?

  2. The chemical formula for a covalent compound is called a molecular formula; The chemical formula for an ionic compound is called a formula unit.

  3. The chemical formula for a covalent compound is called a molecular formula; Example: H2O is the molecular formula of water The chemical formula for an ionic compound is called a formula unit. Example: NaCl is the formula unit of common table salt

  4. What’s the dif?

  5. A nice VISUAL look at the difference will help out:

  6. We’ll look at sodium chloride, NaCl, as an example ionic compound.

  7. NaCl does not exist as a single unit like a molecule.

  8. Like any ionic compound, sodium chloride exists as a crystal:

  9. The formula unit for sodium chloride is NaCl. However, if we look inside the crystal, the Na+ and Cl- ions are each bonded to six oppositely charged neighbors:

  10. Let’s shrink the ions so we can take a peek inside

  11. Let’s shrink the ions so we can take a peek inside

  12. We’ll take a look at this Cl- ion.

  13. How many Na+ ions is the Cl- close enough to bond with?

  14. We’ll start again from the head-on view

  15. We’ll start again from the head-on view

  16. And, how many Cl- ions is each Na+ ion bonded to?