Electrons
Orbitals.
What is the molecular geometry of CO2?
What rule states that atoms tend to form bonds until they are surrounded by 8 valence electrons?
What is an ion?
An atom or molecule with a non-zero charge
Make sure the equation is balanced
2
What is the bond angle in a molecule with tetrahedral geometry?
109.5
In the molecule H2O, how many lone pairs would be on the central O atom?
2
What factors impact the melting point of a compound?
Charge and size/atomic radius
What is the mass of 1mol of H2O?
18.02g
Which rule states that each orbital in a sublevel has to have one electron before any orbital gets a second?
Hund's rule
What is the molecular geometry of NH3?
Trigonal pyramid
What is the formal charge of hydroxide?
1-
What is the chemical formula for calcium carbonate?
CaCO3
In the reaction 2H2 + O2 -> 2H2O, which is the limiting reactant if we have 5 grams of each reactant?
Oxygen
What does the principle quantum number (n) tell us about an electrons orbital?
Its energy level, or shell
What is the hybridization of a molecule with trigonal planar geometry?
sp2
The best Lewis structure minimizes what?
Formal charge
What is the charge of iron in FeCl2?
+2
What is the balanced version of this equation?
C3H8 + O2 -> CO2 + H2O
C3H8 + 5O2 -> 3CO2 + 4H2O
What element has the following electron config?
1s22s22p63s23p4
Sulfur
What is the electron and molecular geometry of a molecule with 2 single bonds and 2 lone pairs of electrons?
Molecular: Bent
Draw a molecule that has tetrahedral molecular geometry, a central N atom, 4 single bonds, and an over all charge of +1
NH4+
What is the chemical formula for a compound containing Mg2+ and OH- ?
Mg(OH)2
What mass of HCl is required to react completely with 100g of Mg2Si?
Mg2Si + 4HCl --> 2MgCl2 + SiH4
190.11 g HCl