Ionic Bonds
What makes an ionic bond?
What is transfer of electrons between a cation and an anion?
How are covalent bonds formed?
What is a sharing of electrons?
What are the rules of electronehgativity?
<.5 = nonpolar
.5-1.9 = polar
1.9< = ionic
_C3H8O+_O2 ->_CO2+_H2O
What is the coefficient in front of Oxygen?
9
CH4
name it!
Carbon Tetrahydride
Iron(II) Nitride
What is Fe3N2?
The structure of NHO
O=N-H
What are the exceptions? What makes a molecule nonpolar if the bonds are polar?
Trigonal Planar, tetrahedral, or linear shape with all of the same type of attached elements to center element!
3 AgNO3+_(NH4)3(PO4) -> Ag3(PO4)+ 3 (NH4)NO3
Is this equation balanced?
Yes!
O2F2
Name it!
Dioxygen diflouride
Why is a cation positive and an anion negative?
What is an imbalance of electrons and neutrons, creating a charge?
The geometry of CH2O
Trigonal Planar
Arrange elements in order of increasing electronegativity:
F, Na, Al, C, Cs
Cs, Na, Al, C, F
_Cl2+_NaI -> _NaCl+_I2
What is the sum of the balanced coefficients?
6
Heptanitrogen Pentaoxide
N7O5
Name of (NH4)2(CO3)
What is ammonium carbonate?
Geometry around O on the board!
Bent
Does BeCl2 have polar bonds?
Yes!
A. _C7H16+_O2 -> 7 CO2+8 H2O
B. _K2CrO4+_Pb(NO3)2 -> 2 K(NO3)+_PbCrO4
C. 4 Fe3O4+_O2 -> 6 Fe2O3
Which equation isn't balanced?
A
What is polar, covalent, and ionic levels?
Covalent : 0 - 0.4
Polar : 0.5 - 1.9
Ionic : 2.0 and up
Formula and name of Ba2+ and (NO3)-
What is Ba(NO3)2, called Barium Nitrate?
O-N-O and N-C-H geometries on board!
Trigonal Planar and Tetrahedral
Is BeCl2 a polar molecule?
No!
What is electronegativity?
What is the periodic table trend?
The ability of an atom to ATTRACT electrons in a covalent bond.
Is stronger the higher and more right you go.