~* Mrs. Hicks’ Midterm Review *~
Scientific Notation and Unit Prefixes
Make the following conversions:
1)
3.4 liters to milliliters
6)
45 meters to centimeters
2)
876 millimeters to meters
7)
11.7 grams to kilograms
3)
78,999 milligrams to grams
8)
0.0009 kiloliters to liters
4)
0.9 centigrams to grams
9)
44 centimeters to meters
5)
112 meters to millimeters
10)
277 kilograms to grams
Convert the following to scientific notation:
11)
45,700 ______________________________
12)
0.009 ______________________________
13)
23 ______________________________
14)
0.9 ______________________________
15)
24,212,000 ______________________________
Significant Figures Worksheet
How many significant figures are in each of the following numbers?
1)
5.40 ____
6)
1.2 x 103 ____
2)
210 ____
7)
0.00120 ____
3)
801.5 ____
8)
0.0102 ____
4)
1,000 ____
9)
9.010 x 10-6 ____
5)
101.0100 ____
10)
2,370.0 ____
Significant Figure Calculations
Solve the following mathematical problems such that the answers have the correct number of significant
figures:
1)
334.540 grams + 198.9916 grams = ___________________
2)
34 grams / 10.1 mL = ___________________
3)
2.61 x 106 joules / 0.0034 seconds = ___________________
4)
0.0610 m – 0.18 m = ___________________
5)
349.0 cm + 1.10 cm + 100. cm = ___________________
Lab Equipment Worksheet
Explain which piece of laboratory equipment would be most useful for each of the following tasks:
1)
Holding 50 mL of boiling water: __________________________________
2)
Melting a crystal over a Bunsen Burner:_______________________________
3)
Pouring 50 mL of acid from one container to another: _____________________
4)
Measuring exactly 43 mL of water:______________________________
5)
Weighing out 120 grams of sodium chloride:____________________________
Average Atomic Mass Worksheet
1) Rubidium has two common isotopes, 85Rb and 87Rb. If the abundance of
85Rb is 72.2% and the abundance of 87Rb is 27.8%, what is the average
atomic mass of rubidium?
2) Uranium has three common isotopes. If the abundance of 234U is 0.01%,
the abundance of 235U is 0.71%, and the abundance of 238U is 99.28%,
what is the average atomic mass of uranium?
3) Titanium has five common isotopes: 46Ti (8.0%), 47Ti (7.8%), 48Ti (73.4%),
49Ti (5.5%), 50Ti (5.3%). What is the average atomic mass of titanium?
Periodic Trends Worksheet
1)
Rank the following elements by increasing atomic radius: carbon, aluminum, oxygen,
potassium.
2)
Rank the following elements by increasing electronegativity: sulfur, oxygen, neon, aluminum.
3)
What is the difference between electron affinity and ionization energy?
4)
Why does fluorine have a higher ionization energy than iodine?
5)
Why do elements in the same family generally have similar properties?
Electron Configurations Worksheet
Write the complete ground state electron configurations for the following:
1)
lithium ________________________________________
2)
oxygen ________________________________________
3)
calcium ________________________________________
4)
titanium ________________________________________
5)
rubidium ________________________________________
Write the abbreviated ground state electron configurations for the following:
1)
Iron ________________________________________
2)
nitrogen ________________________________________
3)
chlorine ________________________________________
Draw the orbital diagram for each of the following (Up and down spinning arrows)
1)
lithium ________________________________________
2)
oxygen ________________________________________
3)
calcium ________________________________________
4)
titanium ________________________________________
Nuclear Chemistry Worksheet
Using your knowledge of nuclear chemistry, write the equations for the following processes:
1)
The alpha decay of radon-198
2)
The beta decay of uranium-237
3)
Positron emission from silicon-26
4)
Sodium-22 undergoes electron capture
Review– Naming Chemical Compounds
Name the following chemical compounds:
1)
NaBr ______________________________________________
2)
Ca(C2H3O2)2 ___________________________________________
3)
P2O5 ______________________________________________
4)
Ti(SO4)2 ______________________________________________
5)
FePO4 ______________________________________________
6)
K3N ______________________________________________
7)
SO2 ______________________________________________
8)
CuOH ______________________________________________
9)
Zn(NO2)2 ______________________________________________
10)
V2S3 ______________________________________________
Write the formulas for the following chemical compounds:
11)
silicon dioxide ______________________________________________
12)
nickel (III) sulfide _____________________________________________
13)
manganese (II) phosphate _____________________________________
14)
silver acetate ______________________________________________
15)
diboron tetrabromide __________________________________________
Acids Nomenclature
Write the formula for the given name…of vice versa.
1)
Nitric Acid
2) Carbonic Acid
3) Sulfurous Acid
4) Nitrous Acid
5) Hydrofluoric Acid
6) HBr
7) HCN
8) Phosphoric Acid
9) Hydrophosphoric Acid
10) H3PO3
Elements and Bonding Worksheet
1)
Classify each of the following elements as an alkali metal, an alkaline-earth metal,
transition metal, metalloid, halogen, or noble gas based on its position in the periodic
table:
2)

boron
_______________________________________

gold
_______________________________________

krypton
_______________________________________

calcium
_______________________________________
How many valence electrons do each of the following elements have?

selenium ______

xenon ______

potassium ______

Carbon _______
Moles
Convert the Following:
1) What is the molar mass (or formula weight) of CO2?
2) What is the molar mass (or formula weight) of (NH4)2O?
3) How many moles are in 28.0 grams of Na?
4) How many moles are in 1 X 1024 molecules of Sodium?
5) How many molecules are in 3.0 grams of H2?
6) How many grams are in 3.2 x 1024 atoms of O2?
Lewis Structures, VSEPR, Polarity, IM Forces
For each of the following molecules, draw the Lewis structure (with any resonance structures, if
applicable), indicate the molecular shapes and bond angles, indicate the molecular polarity (if
any), and identify the major intermolecular force in each compound. Hint – in this worksheet, as
in all chemistry problems you’ll see, polyatomic ions aren’t drawn as big lines of atoms.
1)
carbon tetrafluoride
2)
BF3
3)
NH3
4)
H2O
5)
O2