Electrons
Geometry
Lewis Structures & Formal Charge
Boiling Points
Stoichiometry & Balancing Equations
100
What region around the nucleus is occupied by electrons?

Orbitals.

100

What is the molecular geometry of CO2?

Linear
100

What rule states that atoms tend to form bonds until they are surrounded by 8 valence electrons?

Octet rule
100

What type of intermolecular force exists between water molecules?

hydrogen bonds

100
What is the first step when approaching a stoichiometry problem?

Make sure the equation is balanced

200
What is the maximum number of electrons that can occupy the S orbital?

2

200

What is the bond angle in a molecule with tetrahedral geometry?

109.5

200

In the molecule H2O, how many lone pairs would be on the central O atom?

2

200

As boiling point increases what else increases?

Mass and intermolecular forces
200

What is the mass of 1mol of H2O?

18.02g

300

Which rule states that each orbital in a sublevel has to have one electron before any orbital gets a second?

Hund's rule

300

What is the molecular geometry of NH3?

Trigonal pyramid

300

What is the formal charge of hydroxide?

1-

300

Which molecule would have a higher boiling point, CH4 or CCl4?

CCl4

300

In the reaction 2H2 + O-> 2H2O, which is the limiting reactant?

H2

400

What does the principle quantum number (n) tell us about an electrons orbital?

Its energy level, or shell

400

What is the hybridization of a molecule with trigonal planar geometry?

sp2

400

The best Lewis structure minimizes what?

Formal charge

400

What type of intermolecular force is the reason that noble gasses have a higher boiling point as you move down the group?

London dispersion force

400

What is the balanced version of this equation?

C3H8 + O2 -> CO+ H2O

C3H8 + 5O-> 3CO2 + 4H2O

500

What element has the following electron config?

1s22s22p63s23p4

Sulfur 

500

What is the electron and molecular geometry of a molecule with 2 single bonds and 2 lone pairs of electrons?

Electron geometry: Tetrahedral 

Molecular: Bent

500

Draw a molecule that has tetrahedral molecular geometry, a central N atom, 4 single bonds, and an over all charge of +1

NH4+

500

wWhich molecule would have the highest boiling point, For Cl2?

Cl2

500

What product forms when KClOdecomposes?

KCl + O

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