Section Review Chapter 6 Chemistry
N(CH3)3
... try it
Cl2O
.... try it
How many electrons are shared by two atoms that form a triple bond?
Covalent bonding occurs when electrons are shared between atoms.
In a polyatomic ion, where is the charge located?
It depends on the polyatomic ion. Usually on a very electronegative atom. Sometimes the charge is not located only to one atom but to more atoms because of resonance.
How do the names for SO2 and SO3 differ?
SO2 is sulfur dioxide, meaning that there are 2 oxygen atoms in a molecule. SO3 is sulfur trioxide, meaning that there are 3 oxygen atoms in a molecule.
Which electrons do a Lewis structure show?
Valence Electrons
What do resonance structures represent?
They represent Lewis structures that we don't know how to draw precisely, but they roughly mean that one of the electrons on the bond is neither one atom's nor the other's. It is an estimate.
Draw three resonance structures for SO3
http://www2.ucdsb.on.ca/tiss/stretton/graphics/so3.gif
More from:
https://shaahidstudyguide.wordpress.com/2015/01/07/chapter-6-covalent-compounds-section-2-assessment/
Draw a Lewis structure for an atom that has the electron configuration
1s22s22p63s23p3. one electron on top and one on bottom
Draw Lewis structures for each compound: a. BrF
Br has 7 valence electrons and F has 7 v.e. for 14 total. Distributing those while obeying the octet rule gives: Br-F with 3 lone pairs on each atom.
