Molar Conversions
Formula Writing + Naming Compounds
Lewis Structures + Geometries
Polarity + IMFs
Metric/U.S. Conversions
100
How many atoms of H are present in 3.4 moles of CH4 ?
Avogadro's Number = 6.022 x 1023
C = 12.01 g/mol H= 1.008 g/mol
8.2 x 1024 atoms of H
100
NiBr2 is the chemical formula for which compound?
Nickel (II) bromide
100
Draw the Lewis structure of HCN
100
The ability of an atom to attract the shared electrons in a bond is called?
Electronegativity
100
How many liters are in 2.73 x 104 microliters?
0.273 L
200
What type of chemical equation is shown and how many moles of Na2S would be needed to react fully with 18 moles of HCl?
Na2S + 2 HCl --> 2 NaCl + H2S
9 moles of Na2S
200
C2H2 is the chemical formula for which chemical compound?
Dicarbon dihydride
200
Draw the Lewis Structure of BF3 (include lone pairs).
200
Which of the following are polar bonds
H-C
N-O
F-O
F-F
C-N
C(2.5), O(3.5), N(3.0), F(4.O), H(2.1)
C-N
N-O
F-O
200
How many nanoliters are in 0.000782 kiloliters?
7.82 x 108 nL
300
Balance the following chemical equation:
___ C6H14 + ___ O2 --> ___ CO2 + ___ H2O
2 C6H14 + 19 O2 --> 12 CO2 + 14 H2O
300
What is the name of the molecule with the chemical formula (NH4)2CO3 ?
Ammonium carbonate
300
Oh No!
Lose 300
300
What is the difference between INTERmolecular forces and INTRAmolecular forces.
Intermolecular forces are between two or more molecules (h-bonds, d-d, dispersion)
Intramolecular forces are within a molecule (covalent bonds, ionic bonds)
300
How many terabytes are there in 134 megabytes?
1.34 x 10-4 terabytes
400
How many molecules of Fe2S3 are present in 82.4 grams of Fe2S3
Fe = 55.85 g/mol S = 32.07 g/mol
2.39 x 1023 molecules of Fe2S3
400
N3O7 is the chemical formula for which chemical compound?
Trinitrogen heptoxide
400
What is the electron group geometry and the molecular geometry for NH3?
Tetrahedral; Trigonal pyramidal
400
Order the following from highest to lowest boiling point:
CH4
C5H12
C4H10
C2H6
C3H8
C5H12 > C4H10 > C3H8 > C2H6 > CH4
400
How many pounds of sugar would be present in 2,762 grams of sugar?
1 kg = 2.20 lbs
6.08 lbs of sugar
500
How many grams of C3H7NO2S (Cysteine) would I have if I had 3.40 x 1024 molecules of C3H7NO2S.
C = 12.01 g/mol, H = 1.008 g/mol, N = 14.01 g/mol, O = 16.00 g/mol S = 32.07 g/mol
684 gams of Cysteine
500
FeSO4 is the chemical formula for which chemical compound?
Iron (II) sulfate
500
What is the electron group geometry and the molecular geometry of SH2?
Tetrahedral; Bent
500
Order the following from lowest to highest melting point
N2H2 MgO F2 CF4 CH2Cl2
N(3.0), O(3.5), F(4.0), Cl(3.0), C(2.5), H(2.1)
F2 < CF4 < CH2Cl2 < N2H2 < MgO
500
A ballistic missile can travel up to 18,000 mph. How fast is that in meters per second?
0.621 miles = 1 Km
8,100 m/s