Download Chapter_2_Study_Guide-2013

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Chapter 2 Study Guide
 Review ALL notebook pages 28-41. Make sure you know ALL vocabulary cards!
Section 1: Describing Matter (pp.58 -67 in your book)
 Define:
o Matter:
o Substance:
 Explain the differences between physical and chemical properties and know examples for each:
Physical Properties
Chemical Properties
Description
Examples:
 Know the difference between elements, compounds and mixtures:
Elements
Compounds
Description
(know the relation of atoms,
chemical bonds and molecules)
Mixtures
(know the relation with the chemical
formula)
Homogeneous vs. Heterogeneous
(solution)
Examples
Howe can you separate a mixture?
Section 2: Changes in Matter (pp.68- 72 in your book)
 Know the difference between physical and chemical changes
Physical Changes
Description
Examples:
Chemical Changes
Combustion:
Electrolysis:
Oxidation:
Tarnishing:
Important: Unlike a physical change, a chemical change produces new substances with
properties different from those of the original substances
 Describe the law of conservation of matter:
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Section 3: Energy and Matter (pp.73 -76 in your book)
 Describe energy:
 Know that the forms of energy related to changes in matter include thermal energy, chemical
energy, electromagnetic energy, and electrical energy:
Thermal energy
Description
Chemical energy
Electromagnetic
energy
Electrical energy
Endothermic change:
Exothermic change:
Examples
 Be able to read the following graph and answer the questions below:
Endothermic Change:
Exothermic Change:
Description
Examples:
 Know that during a chemical change, chemical energy may be changed to other forms of
energy. Other forms of energy may also be changed to chemical energy.
o Example:
Photosynthesis
-Is this a physical or chemical formula?
-How do you know?
-Is this an endothermic or exothermic change?
-Describe what kind of energy transformation occurs during photosynthesis:
Study Tips:
 Spend time studying what you DO NOT know! If you know it…move on!
 Good luck…you will do great 
Name___________________ Per.___
Date _______________ Page # _____