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Final Review CHEMISTRY
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Significant figures (#2)
a. 2 i. 4
b. 3 j. 3
c. 4 k. 2
d. 1 l. 1
e. 1 m. 3
f. 4 n. 3
g. 4
h. 2
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Classifying substances (#6)
a. Pure substance (element) i. Heterogeneous mixture
b. Homogeneous mixture j. Homogeneous mixture
c. Homogeneous mixture k. Pure substance (element)
d. Heterogeneous mixture l. Homogeneous mixture
e. Compound
f. Pure substance (element)
g. Compound
h. Heterogeneous mixture
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Density
D= m/vm=d*vV= m/D
D Vm
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Place these liquids in order of increasing density:
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Density (#7-9, 11-12)
#7: 5.3 g/cm3
#8: Sink because water has d=1.0 g/cm3
#9: 2.97 cm3
#11: 0.445 g/cm3
#12: 178.4 g
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Dimensional Analysis (#10)
a. 4.45 x 108 mm
b. 8.8 x 10-5 kg
c. 9.92 x 10-1 L
d. 7.82 x 108 mg
e. 8.99 x 109 mm
f. 1.0 x 103 g
g. 2.5 x 106 mg
h. 5.0 x 10-2 m
i. 4.75 x 101 mm
j. 2.8 x 103 mL
k. 7.7 km/L
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DO AS YOU
ADD ACID TO WATER
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Name the lab equipment (#19)
Erlenmeyer flask
Graduated cylinder
Scale
Beaker
Volumetric flask
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Periodic Trends (#21-23)
#21:
O, S, Se, Te
Ar, Cl, S, P
Ca+2, K+, Cl-, S-2
#22: Te, Se, S, O P, S, Cl, Ar K, Ca, S, Cl
#23: Te, Se, S, O P, S, Cl, Ar K, Ca, S, Cl
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#25
a. X=15
b. X=47
c. X=Ti
d. X= I
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Electron Orbital Diagram (#32)
a.
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Average Atomic Mass
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Nomenclature (#52)
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Precision of a measuring instrument
Measure the leaf and screw to the correct number of decimal places.