Download Review Questions

Name
Date
Period
AP Chemistry Summer Assignment
Review from Chemistry 1
Due September 1, 2016
Tutorials: Search for “brightstorm” and any of these topics on YouTube and you should find a quick review.
Safety and Measurement
Convert the following. (Remember: 1 cm3 = 1mL)
a) 83 L = ________ cm3
c) 7g= _________kg
b) 0.0015 km= _______m
d) 100 mL= ___________ L
Identify the number of significant figures in each of the following:
a) 4.550
____
b) 0.01450
____
c) 70003
____
d) 6500
____
Round off each of the following numbers to 2 significant figures.
1)
6.97
2) 0.0135
Scientific Notation
The distance between the Earth and the moon is 386000 km. What is the distance in scientific notation?
a.
386 x 103 km.
c.
38 x 104 km.
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b.
3.8 x 10 km.
d.
3.86 x 105 km.
The measurement 0.020 L is the same as
a.
2.0 x 10–3 L.
b.
2.0 x 10–2 L.
c.
d.
2.0 x 102 L.
2.0 x 10–1 L.
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Matter and Change
Identify the following as chemical (C) or physical (P)
changes:
Identify each as: element, compound, homogeneous
mixture, or heterogeneous mixture.
a. Water evaporating ______
a. Water (H2O) _______
b. Aluminum rusting ______
b. Salt water _______
c. Dissolving salt in water ______
c. Vegetable soup _______
d. A log burning in the fireplace ______
d. Carbon Dioxide (CO2) _______
e. Breaking glass ______
e. Calcium (Ca) _______
Volume = 225 mL Mass = 316.4g Find density.
CaCl2 is used as a de-icer on roads in the winter. If it has a density of 2.50 g/cm3, what is the mass of 1250 cm3
block of CaCl2?
Atomic Structure and Periodic Table
Subatomic
Particle
Proton
Location within
Atom
Charge
Mass
Neutron
Electron
Name
Symbol
Atomic #
Mass #
p+
n0
e-
___________
Bi
_____
209
83
_____
_____
Phosphorus
_____
15
_____
_____
16
_____
Isotopes – atoms of the same element with different masses due to the number of neutrons.
Isotope
Symbol
Atomic #
Mass #
p+
n0
e-
____________
______
_____
_____
80
122
80
Selenium-80
______
34
80
_____
_____
_____
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Periodic Table
Label the following groups on the periodic table:
oxygen group
halogen group
noble gas
alkaline earth metal
alkali metal
Draw and label 3 arrows on the periodic table that represent increasing: atomic radius, electronegativity, and
ionization energy.
Electron configuration
(and circle the highest level e-)
Noble gas configuration
I
Nd
Ionic Bonding
Ionic bonding occurs between a metal and a nonmetal when electrons are transferred.
Element
Symbol
# of
Valence
electrons
Lewis
Dot
Structure
# Electrons
loses or gains
Charge
(+/-)
Ion Formed
(anion or
cation)
Oxygen
Lithium
Ionic Naming – name the metal and then change the ending of the nonmetal to –ide.
Learn the polyatomic ions. There will be a quiz in the first week of school.
a.
__manganeese fluoride___________________________ MnF2
b. _____________________________________________ MgCO3
c. _____________________________________________ NaCl
d. ______________________________________________ Sr3(PO4)2
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Write the formula for the following compounds. The Roman numeral tells the charge of the metal.
a. ___________________ chromium (III) nitrate
c. ______________________ sodium acetate
b. ______________________aluminum bromide
d. ______________________ iron (III) oxide
Covalent Bonding
Covalent bonding occurs between two nonmetals when electrons are shared.
Use the prefixes (mono, di, tri, tetra, penta, hexa, hepta, octa, nona, deca) and end in –ide.
Write the name of the following compounds.
Write the formulas for the following compounds.
Si2O3 __disilicon trioxide______________________
diarsenic pentoxide ___________________________
SO2
______________________________________
tricarbon pentafluoride ________________________
PO5
______________________________________
carbon tetrachloride __________________________
S2F4
______________________________________
disulfur hexahydride _________________________
Moles and Other Math Problems
1. What is the molar mass of the following compounds?
CaCl2 ________________
NH4NO3 ______________________
2. How many grams are in 120 moles of Zn?
3. How many moles are in 5.24 x 1023 atoms of Nitrogen?
4. A 4.041 x 1021 molecules of CS2 has what mass in grams?
5. Find the percent composition of Oxygen in Na2S2O3 __________________________
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Chemical Reactions
Balance the following Reactions:
___Al + ___Fe2O3
 ___Al2O3 + ___Fe
___SiO2 + ___HF  ___ H2O + ___SiF4
___C4H8 + ___O2  ___CO2 + ___H2O
Redox Reactions
Identify the oxidation number for each element in the compound.
Na2S03
Ag2O
F2
Complete the chart for the following reaction:
3FeO + 2Al  Al2O3 + 3Fe
Oxidized
Reduced
Ox ½
Red ½
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Stoichiometry
Use the reaction below to answer the following questions:
Al(OH)3
+
3KCl 
AlCl3 +
3KOH
How many grams of KOH would be produced from 7.23 grams of Al(OH)3?
How many moles of KCl would be required to form 3 moles of AlCl3?
Consider the balanced reaction: 2Na + 3N2  2NaN3
If 4.98 grams of Na and 5.68 grams of N2 react, what is the limiting reactant?
Calculate the number of moles in 25 L of a 0.45M solution of NaOH.
If 100 mL of 6M solution is diluted to 500mL, what is the new molarity?
Acids and Bases
Ion
-ide
Name
(no oxygens)
Hydro -
Exam
ple
-ic HCl
Name
Hydrochloric acid
-ite (less oxygens)
-ous
H2SO3
Sulfurous acid
-ate (more
oxygens)
Hydroxide (OH-)
-ic
H2SO4
Sulfuric acid
hydroxide
NaOH
Sodium hydroxide
Name the following acids and bases:
1. HF ___________________________________
5. Co(OH)2_______________________________
2. H2NO3_________________________________
6. H2NO2_________________________________
3. H2Se__________________________________
7. Sr(OH)2________________________________
4. H2CO3 ________________________________
8. HBr___________________________________
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