Final Review CHEMISTRY. Significant figures (#2) a. 2i. 4 b. 3j. 3 c. 4k. 2 d. 1l. 1 e. 1m. 3 f. 4n. 3 g. 4 h. 2.

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Presentation transcript:

Final Review CHEMISTRY

Significant figures (#2) a. 2i. 4 b. 3j. 3 c. 4k. 2 d. 1l. 1 e. 1m. 3 f. 4n. 3 g. 4 h. 2

Classifying substances (#6) a. Pure substance (element)i. Heterogeneous mixture b. Homogeneous mixturej. Homogeneous mixture c. Homogeneous mixturek. Pure substance (element) d. Heterogeneous mixturel. Homogeneous mixture e. Compound f. Pure substance (element) g. Compound h. Heterogeneous mixture

Density  D= m/v  m=d*v  V= m/D D V m

Place these liquids in order of increasing density:

Density (#7-9, 11-12)  #7: 5.3 g/cm 3  #8: Sink because water has d=1.0 g/cm 3  #9: 2.97 cm 3  #11: g/cm 3  #12: g

Dimensional Analysis (#10) a x 10 8 mm b. 8.8 x kg c x L d x 10 8 mg e x 10 9 mm f. 1.0 x 10 3 g g. 2.5 x 10 6 mg h. 5.0 x m i x 10 1 mm j. 2.8 x 10 3 mL k. 7.7 km/L

DO AS YOU ADD ACID TO WATER

Name the lab equipment (#19)  Erlenmeyer flask  Graduated cylinder  Scale  Beaker  Volumetric flask

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

#25 a. X=15 b. X=47 c. X=Ti d. X= I

Electron Orbital Diagram (#32) a.

Average Atomic Mass

Nomenclature (#52)

Precision of a measuring instrument Measure the leaf and screw to the correct number of decimal places.