Download MID-TERM EXAM REVIEW! Unit 1 Convert the following: 1.) 2.02 x

MID-TERM EXAM REVIEW!
Unit 1
Convert the following:
1.) 2.02 x 1015 mg = ___ g
2.) 1.29 x 10-7 m = ___ cm
3
3
3.) 13.5 dm = ___ cm
4.) 1.64 x 1014 mL = ___ L
5.) What is the mass of a cube of aluminum (density = 2.70 g/cm3) with each side measuring 2.00 cm?
A student is determining the density of a U.S. nickel. His data is shown below:
# of nickels
15
Mass
graduated
cylinder
and
50 mL
water
Mass
cylinder,
water, and
nickels
Mass
50.00 g
73.50 g
?
nickels
Volume of
water
Volume of
water and
nickels
Volume of
nickels
Density of
nickels.
50.0 mL
53.0
3.0
?
6.) What is the mass of 15 nickels?
7.) What is the density of 15 nickels?
Unit 2
* Classify as element, compound, solution, or heterogeneous mixture.
8.) Flat soda
9.) Potassium iodide
10.) Iodine
11.) Potassium iodide completely dissolved in water
12.) Soil
13.) Chromium
* Classify as chemical or physical changes.
14.) Shredding cheese
15.) Melting cheese
16.) Digesting cheese
17.) Making salt from sodium and chlorine
18.) Sprinkling salt on french fries
* In what group (give number) are each of the following elements found in the Periodic Table?
19.) alkali metals
20.) alkaline earth metals
21.) transition elements
22.) halogens
23.) noble gases
Unit 3
* Tell scientist who...
24.) Discovered the nucleus?
25.) Discovered the neutron?
26.) First got ideas about atoms published?
27.) Discovered electron?
28.) Said electrons move in fixed paths around nucleus?
* Solve the following:
29.) How many molecules of carbon dioxide (CO2) are contained in 46.2 grams of CO2?
30.) What is the mass (in grams) of 6.92 x 1023 molecules of Ca(NO3)2?
Unit 4
31.) Write electron configuration for nickel and selenium.
32.) Draw orbital notation for H.O.E.L. of nickel and selenium.
33.) Write noble gas configuration for nickel and selenium.
34.) Write out the four quantum numbers for the last electron added to nickel and selenium. (Honors only)
35.) Draw the dot diagram for nickel and selenium.
36.) Identify the H.O.E.L. and # of valence electrons for nickel and selenium.
Unit 5
* Define the following terms:
37.) Ionization energy
38.) Electronegativity
39.) Effective nuclear charge
40.) Shielding effect
41.) Which element has an oxidation number of –1?
42.) Which element is a noble gas?
43.) Which element(s) is/are metals?
44.) Which element is an alkaline earth metal?
45.) Which element has 5 electrons in the outer shell?
46.) Which element(s) are metalloids?
47.) Give the formula for the compound between A and F.
* Without looking at the Periodic Table write the expected outer electron configuration for the element in:
48.) Period 2, Group 14
49.) Period 5, Group 17
50.) Period 3, Group 2
* Answer the following.
51.) Name the most reactive metal.
52.) Name the most reactive nonmetal.
Unit 6
* Tell predominant type of bonding in the following compounds (ionic, covalent, both):
53.) CO2
54.) Na2SO4
55.) MgBr2
56.) Ag2CO3
* Define and tell what types of substances exhibit these intermolecular forces:
57.) Hydrogen bonding
58.) Dipole-dipole
59.) London dispersion
Unit 7
* Write formulas for the following:
60.) Potassium carbonate
61.) Chromium (III) nitrate
62.) Disulfur pentoxide
63.) Zinc sulfide
64.) Magnesium dichromate
* Name the following compounds:
65.) Na2CrO4
66.) AgBr
67.) SO3
68.) Ca(ClO3)2
69.) PbSO4
70.) Fe(OH) 3
71.) Which compound has the highest % nitrogen?
(A) NO2
(B) NaNO3
(C) NH3
* Find the oxidation number of nitrogen in each of these compounds.
72.) Zn(NO3)2
73.) Zn(NO2)2
74.) Mg3N2
75.) N2O5
76.) What is the empirical formula of a compound containing 56.5 % potassium, 8.7 % carbon, & 34.8 % oxygen?
77.) A compound has an empirical formula of CH2O. If the molar mass of the actual formula is 180 g/mole, what is the
molecular formula for the compound?
* Fill in the charts.
78.) Unit 3
Name
Symbol
# of p+
# of e-
# of no
50
atomic #
mass #
118
iron – 56
14N
14
14
79.) Unit 4
Wavelength
(short/long)
Energy
Frequency
(high/low)
High
Low
80.) Unit 5
Across a Period
(left to right)
Down a Group
(top to bottom)
Noble Gases Included?
yes or no?
Atomic Radius
Electronegativity
Electron Affinity
Ionization Energy
81.) Unit 6
Compound
Lewis Structure
H2O
CF4
CO2
NH3
Get the answers to the review
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Shape
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