4.E: Valence Electrons and Bonding (Exercises)
- Page ID
- 204184
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Exercises
1: Identify whether each compound(s) is/are ionic.
- NaI
- Au2CO3
- N2O
- SiO2
- Answer
-
Only answers (a) and (b) are ionic compounds. Both formulas begin with a metal (atom from the left side of the periodic table) ion.
2: Identify whether each compound(s) is/are covalent.
- SiH3
- C6H5Cl
- KC2H3O2
- Ca(OH)2
- Answer
-
Only answers (a) and (b) are covalent compounds. Both formulas begin with nonmetals and/or metalloids (atoms from the right side of the table)
3: Write the formula for each ionic compound.
- magnesium sulfite
- aluminum nitride
- mercury II hydroxide
- ammonium oxide
- Answer
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a. MgSO3 b. AlN c) Hg(OH)2 d) (NH4)2O
4: Write the formula for each covalent compound.
- iodine trichloride
- disulfur dibromide
- arsenic trioxide
- xenon hexafluoride
- Answer
-
a. ICl3 b. S2Br2 c. AsO3 d. XeF6
5: Which covalent species would be considered free radicals?
- hydrogen monoxide
- carbon dioxide
- phosphorus disulfide
- ammonia (NH3)
- Answer
-
- silicon tetrafluoride
- nitrogen dioxide
- carbon disulfide
- diphosphorus pentoxide
Answers
1.
2.
3.
4.
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- ICl3
- S2Br2
- AsO3
- XeF6
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H2O and NH3 (water and ammonia) (answers will vary)