Measurement
Atoms &
Elements
Bonds &
Chemical
Structures
100
100
100
100
200
200
200
200
300
300
300
300
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400
400
400
Names &
Formulas
Measurement 100
Put the following numbers in scientific notation:
• 40081230
• 0.00200
• 240.3
Measurement 200
A 5000. mg block of an unknown material
displaces 0.635 cc of water.
What is the density of this material (in g/mL)?
Measurement 300
A patient’s diet is restricted to 30.0 g of fat per day.
If she eats a 0.20 kg burger that is 25% fat by
weight, has she exceeded her fat limit for the
day?
Bonds & Chemical Structures 100
How many valence electrons are in sulfur tetrafluoride?
Bonds & Chemical Structures 200
Draw the electron dot structure for hydrazine (N2H4)
Bonds & Chemical Structures 300
What is the shape of each of the following molecules?
CH4
SiH3Cl
PF3
H2 S
Which of these molecules are polar?
Bonds & Chemical Structures 400
Draw the Lewis dot structure for CH2O.
Draw the Lewis dot structure for CH3CO2-.
Hint: both oxygen atoms are attached to ONE of the carbon atoms
Do either of these exhibit resonance?
Names & Formula 100
Name the following compounds
• LiBr
• Ca3N2
• Cu2S
(Hint: one of these has multiple valencies!)
Names & Formula 200
Name the following compounds:
• PCl3
• N2O5
Names & Formulas 300
Which of the following contains an ion with a 3+ charge?
KCl
Na2O
FeCl3
Mg(NO3)2
Names & Formula 400
Name the following compound: (NH4)2SO4
...and…
Write the formula for magnesium phosphate
Atoms & Elements 100
Describe the structure of an atom and the three
types of subatomic particles
Atoms & Elements 200
Write the atomic symbols for the elements
described below:
• An atom with 15 protons and 16 neutrons
• A neutral atom with 17 electrons and 20 neutrons
Atoms & Elements 300
What neutral atoms are described by the
following electron configurations?
• 1s22s22p63s23p64s23d104p6
• [Ar] 4s23d104p3
• 1s22s22p63s23p64s23d5
Atoms & Elements 400
Consider F and Na.
Which is more metallic?
Which has a larger atomic radius?
Which has a higher ionization energy?
Which is more electronegative?