Chemistry problems
_____1) Which atom below has 4 valence electrons?
a) Carbon b) Beryllium c) Hydrogen d) Nitrogen e) None
_____2) What is the correct Lewis dot structure for oxygen?
a) b) c) d) e) no right choice
_____3) Which chemical has the most number of valence electrons in its Lewis structure (electron-dot structure)?
a) methane b) hydrogen cyanide c) dihydrogen monoxide d) nitrogen trihydride e) all the same
_____ 4) Which choice below has the correct Lewis structure (electron-dot structure) ?
a) b) c) d) e) all are incorrect
____ 5) What is the molecular geometry of dihydrogen monoxide?
a) linear b) trigonal planar c) bent d) tetrahedral e) no right answer
6) For each of the chemical listed, place a check mark () on all the type of attractive / intermolecular forces that the chemical possesses and determine if the chemical is polar or nonpolar.
Dipole-Dipole LDF H-Bond Circle the correct choice.
methane Nonpolar or polar
Hydrogen cyanide Nonpolar or polar
Dihydrogen monoxide Nonpolar or polar
Nitrogen trihydride Nonpolar or polar
Complete the Lewis Structure for the chemical below, and answer the questions next to the structure.
What is the molecular geometry around the carbon atom?
a) linear b) trigonal c) bent d) tetrahedral e) no right choice
What is the molecular geometry around the oxygen atom?
a) linear b) trigonal c) bent d) tetrahedral e) no right choice
Is the chemical polar or nonpolar?
Name all the intermolecular forces this chemical possesses.
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Solution Preview
¬¬__A__1) Which atom below has 4 valence electrons?
a) Carbon b) Beryllium c) Hydrogen d) Nitrogen e) None
__C__ 2) What is the correct Lewis dot structure for oxygen?
a) b) c) d) e) no right choice
__B__3) Which chemical has the most number of valence electrons in its Lewis structure (electron-dot structure)?
a) methane b) hydrogen cyanide c) dihydrogen monoxide d) nitrogen trihydride e) all the ...
Solution Summary
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