Download Chemistry Semester One Exam Review Name:

Chemistry Semester One Exam Review
Name: ________________
1. Compare physical and chemical changes in matter.
2. State the law on conservation of mass.
3. On which type of mixture(s) does the Tyndall Effect scatter light? On which type
of mixture does it pass thru?
4. Define the following terms and list one example of each.
a. Heterogeneous mixture
b. Solution
c. Colloid
d. Suspension
e. Metal (properties)
f. Nonmetal (properties)
4. Define the following terms
a. Chemical property –
b. Chemical change –
c. Physical property –
d. Physical change –
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5. Distinguish the symbols of common elements, and match the names of common
elements to their symbols
a. Aluminum –
d. O
b. Nitrogen –
e. C
c. Copper –
f. S
6. Define a neutral atom.
7. What is the name of C614? What is another isotope of carbon? What is the
difference between the two?
8. Complete the following table.
Element // Symbol
Hydrogen // H
Carbon // C
Neon // Ne
# of P+
Atomic #
1.0
# of E-
# of N0
Mass #
6
13
17
11
11
19
9. Given the electron configurations for the following neutral atoms, predict the
oxidation number each is most likely to have.
Element
A
B
C
D
E
Configuration
1s22s22p63s2
1s22s22p63s1
1s22s22p6
1s22s22p5
1s22s22p1
Oxidation Number
2
10. Why do flame tests appear different colors (use the terms ground state and
excited state in your response).
11. Write the electron configurations for the following elements.
LithiumNitrogenZincBromineBarium12. What is the characteristic set of valence electrons for the following groups on
the periodic table?
Alkali metals (1); alkaline earth metals (2); halogens (17); noble gases (18)
13. Refer to a table of atomic and ionic radii, if necessary, to answer the following questions.
a. Within a period, does the size of atoms generally increase or decrease with
increasing atomic number?
b. Within a family, does the size of atoms increase or decrease with increasing
atomic number?
c. Within a period, does ionization energy increase or decrease with increasing
atomic number?
d. In a group, does Ionization energy increase or decrease with increasing atomic
number?
14. How is reactivity in metals a trend on the periodic table?
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15. Circle the larger particle in each of the following pairs.
Na
Br
F
Cs
K
Li
I
FBa
K+
16. What are the characteristics of each of the following reaction types?
a) Synthesis
b) Combustion
c) Decomposition
d) Double replacement
e) Single replacement
17. Complete the word equation, write and balance the equation using symbols and
indicate the type of the reaction on the left.
a. Propane (C3H8) burns in air 
b. Magnesium chloride + silver nitrate 
c. Zn reacts with hydrochloric acid 
d. Nitrogen gas + hydrogen gas 
e. Calcium oxide 
18. Which of the above could use the solubility table to predict its insoluble
product? What is the net ionic reaction for it??
19. Write formulas for the following compounds.
a.
b.
c.
d.
e.
f.
g.
zinc chloride
lead (IV) oxide
silver bromide
sodium phosphate
magnesium sulfide
cobalt (II) fluoride
barium oxide
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20. Name the following compounds.
a.
b.
c.
d.
e.
f.
Pb3(PO4)2
Cu(IO3)2
Cr2O3
Bi2(SO4)3
RbNO3
C4H10
21. Name the following compounds.
a.
b.
c.
d.
e.
f.
22.
N2O3
PCl3
SiO2
P2O5
CS2
Al2O3
Solve the following problems
a. Find the mass of 0.89 mol of CaCl2.
b. How many molecules are present in 0.075 mol of NaCl?
c. Determine the number of moles of C5H12 that are in 362.5 g of the compound.
d. How many moles would you have if you had 1.75 x 1022 molecules of HOH?
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23. Find the percent composition of each element in the following:
a. PbCl2
b. Aspirin (C9H8O4)
24. Define limiting reactant (reagent).
25. Using the following balanced equation to answer the following questions.
2Al203 + 6Cl2 →
4AlCl3 + 3O2
a. If 4.0 moles of Al2O3 react completely, how many moles of AlCl3 are formed?
b. How many grams of Al2O3 are needed to react with 12.0 mol of Cl2?
c. If 30.5 g of Cl2 react completely, how many molecules of O2 are produced?
d. How many grams of AlCl3 are produced if 24.2 g of Cl2 react completely?
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26.
Use the following data to find the average atomic mass of the element
given based on the data from its isotopes:
Pb- 204 1.4%
Pb-206 24.1%
Pb-207 22.1%
Pb-208 52.4%
27.
What are the parts of an atom according to the electron cloud model?
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