Chemistry 108 – Study Guide, Practice Questions & Complete Course Review

Chemistry 108 – Study Guide, Practice Questions & Complete Course
Review


Define chemistry - correct answer ✔✔the study of matter and changes it undergoes.



Identify and describe the steps in the scientific method. - correct answer ✔✔1. Observation

2. Hypothesis (guess)

3. Prediction

4a. Theory (model)

5a. Prediction

6a. Experiment

7a. Theory modified as needed

4b. Law of conservation of matter- in a normal reaction, matter is neither created or destroyed.



Explain the relationship between a theory, law, and hypothesis. - correct answer ✔✔Law: A
summary of observed behavior.

Theory: An explanation of behavior.

Hypothesis: A possible explanation for the observation.



Metric system: - correct answer ✔✔mega M 1,000,000 10⁶

kilo k 1,000 10³

deci d 0.1 10⁻¹

centi c 0.01 10⁻²

milli m 0.001 10⁻³

micro μ 0.000001 10⁻⁶

nano n 0.00000001 10⁻⁹

, Metric System for Measuring Length: - correct answer ✔✔kilometer km 1000 m or 10³ m

meter m 1 m

decimeter dm 0.1 m or 10⁻¹ m

centimeter cm 0.01 m or 10⁻² m

millimeter mm 0.001 m or 10⁻³

micrometer μm 0.000001 m or 10⁻⁶

nanometer nm 0.000000001 m or 10⁻⁹



English to Metric and English to English Equivalents - correct answer ✔✔Length:

1 m = 1.094 yd

2.54 cm = 1 in.

1 mi = 5280. ft

1 mi = 1760. yd

Mass:

1 kg = 2.205 lb

453.6 g = 1 lb

Volume:

1 L = 1.06 qt

1 ft₃ = 28.32 L



Density: - correct answer ✔✔the amount of matter present in a given volume of substance.



Density = Mass/Volume



Fahrenheit (°F) - correct answer ✔✔b H₂O = 212°