Geometry
What is Carbon tetrahydride's electron and molecular geometry?
Electron Group Geometry: Tetrahedral
Molecular Shape: Tetrahedral
London Dispersion
What can use this bonding?
All molecules
Ionic
What can use this bonding?
Nonmetals and metals
Electronegativity difference at or over 1.8
Balance: O3 → O2
2O3 → 3O2
Assuming a molecule has an even number of electrons, which of these octet combinations will you not see:
A) Four single bonds
B) One double bond, one single bond, one lone pair
C) Two double bonds, two lone pairs
D) Three single bonds, one lone pair
You will not see two double bonds, two lone pairs.
100 point bonus: How many electrons would the central atom have here?
What is Carbon dioxide's electron and molecular geometry?
Electron Group Geometry: Linear
Molecular Shape: Linear
Ion - Dipole
What can use this bonding?
Charged molecules (ions) with a polar molecule.
Polar Covalent
What can use this bonding?
Nonmetals and nonmetals
Electronegativity at or over 0.5
What are the coefficients for the reactants and products that are needed to balance the
reaction below? Answers in order of C3H8, O2, CO2, H2O
__C3H8(g) + __O2(g) → __CO2(g) + __H2O(g)
1, 5, 3, 4
What is oxidized or reduced in this reaction: Ni (s) → Ni2+ (aq) + 2e-
Ni is oxidized (loses electrons)
What is Dihydrogen monoxide's electron and molecular geometry?
Electron Group Geometry: Tetrahedral
Molecular Shape: Bent
Hydrogen bonding.
What can use this bonding?
F, N, or O bonded to H
Nonpolar Covalent
What can use this bonding?
Nonmetals and nonmetals
Electronegativity difference under 0.5
How many moles of Fe molecules will react with 0.27 moles of O2 molecules in the given equation?
4Fe + 3O2 → 2Fe2O3
0.36 mole of Fe molecules will react with 0.27 mole of O2.
What type of classification best characterizes the following reaction?
2HBr (g) → H2 (g) + Br2 (g)
A) decomposition reaction
B) single replacement reaction
C) combustion reaction
D) combination reaction
E) none of the above
Decomposition reaction. One reactant became two products
What is H2CO's electron and molecular geometry?
Electron Group Geometry: Trigonal planar
Molecular Shape: Trigonal planar
Dipole-Dipole
What can use this bonding?
Polar molecules, which are molecules with a net dipole.
Which of the following molecule does not have a triple bond present in the correct Lewis structure?
A) N2
B) CS2
C) HCN (atom arrangement in Lewis structure as given)
D) HCCH (atom arrangement in Lewis structure as given)
E) CO
B) CS2
What is the mass of water produced when 8.23 g of C4H10 reacts with excess O2 in the following reaction?
2C4H10(g) + 13O2(g) → 10H2O(g) + 8CO2(g)
The molar mass of C4H10 is 58.12 g/mol, of O2 is 32.00 g/mol, and H2O is 18.02 g/mol
12.8 g
What is the mass, in grams, of 0.150 moles of I2
38.1 g I2
What is Nitrate's electron and molecular geometry?
Electron Group Geometry: Trigonal pyramidal
Molecular Shape: Trigonal pyramidal
Which molecule is predicted to have the highest boiling point?
A) CH4
B) CH2O
C) CH3CH3
D) CH3OH
E) O2
D) CH3OH
Which of the following covalent bonds are considered non-polar? (Multiple answers)
I. C-H
II. O-O
III. C-S
IV. F-F
All of them are non-polar covalent bonds
How many moles of ammonia are produced if 4.20 moles of hydrogen are reacted with an excess of nitrogen?
4.20 moles of H2 will produce 2.8 moles of NH3
Which of the following electron configurations cannot exist for atoms in their ground state?
A) [Ar]4s23d1
B) [Ne]3s23p3
C) [Ne]2s22p3
D) [Ne]3s2
E) 1s22s22p3
C) [Ne]2s22p3