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Webquest Review
Go to http://sites.google.com/site/ionicandcovalentbonding/
Part One: View the Concepts and Skills page.
1. When looking at an ionic compound formula, what should I be able to do?
2. Lewis dot structures will be needed to answer many test questions. List a
few concepts that require a Lewis dot structure.
Part Two: View “How can I tell the difference between ionic and covalent
compounds?”
3. Summarize the difference between ionic and covalent compound
composition.
Part Three: Ionic Compounds
A: View “Formation of Ions and Ionic Bonds.”
4. Explain how Mg3(PO4)2 is a neutral compound.
5. How and why does aluminum form a cation?
B: View “Writing and Naming Ionic Compounds.”
6. Write formulas for the following:
a. magnesium nitride
b. iron (II) hydroxide
c. ammonium sulfide
d. calcium chlorate
7. Name the following:
a. KNO3
b. CuSO4
c. AgBr
d. CoPO4
C: View “Analyzing Ionic Compounds: Higher-level Thinking.”
8. How many carbonate ions are in CaCO3?
9. If GdO exists and Dy(NO3)4 exists, what is the formula for gadolinium
nitrate?
Part Four: Covalent Compounds
A: View “Writing and Naming Covalent Compounds.”
10. Name the following:
a. NF3
b. SiO2
c. N2O5
d. C3H8
11. Write formulas for the following:
a. dichlorine heptasulfide
b. carbon monoselenide
c. silicon tetrabromide
d. phosphorus trichloride
B: View “Drawing Lewis dot structures.”
12. Draw all of the resonance structures for the nitrate ion.
13. How many lone pairs of electrons exist in sulfur dioxide?
C: View “VSEPR – Valence Shell Electron Pair Repulsion.”
14. How many areas of high electron density surround the central atom in
NH3?
15. What is the molecular shape of SO3 molecule?
16. Why is water a bent molecule?
D: View “Electronegativity Difference and Polarity.”
17. Is silicon tetrafluoride a polar molecule? Draw the structure.
18. Is ammonia (NH3) a polar molecule? Draw the structure.
19. Is carbon dioxide a polar molecule? Draw the structure.
E: View “Intermolecular Forces.”
20. Explain why magnesium chloride should dissolve in water.
21. Which of the following would be the most difficult to boil: H2O, CH3Cl,
CO2
Why?
22. Carbon tetrachloride experiences dispersion forces. Why?
F: View “Naming and Writing Formulas for Acids.”
23. Name the following acids:
a. H2CO3
b. H2S
c. H3PO3
d. H3P
24. Write the formula for the following acids.
a. Acetic acid
b. Hydrochloric acid
c. Nitrous acid
d. Nitric acid
Part Five: Comments/Suggestions
Rate the website according the following areas. 1 = unhelpful; 5 = very
helpful
Difference between ionic and covalent page
Forming ions and ionic bonds page
Naming and writing formulas for ionic page
Analyzing ionic compounds page
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Writing and naming covalent page
Drawing Lewis dot structures page
VSEPR page
Electronegativity Difference & Polarity page
Intermolecular Forces page
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