Unit 4 is California content standards 4, 6, and 7. Textbook chapters include 14, 13, and 15.
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There are six phases or states of matter but students in high school chemistry only need to focus on solids, liquids, gases, and plasma.<ref>Electric Universe</ref> Four states of matter are thermal whereas Bose-Einstein and filament are theoretical. Liquids and solids are often referred to as condensed phases because the particles are very close together. Gases, in contrast, do not behave as condensed phases and are studied separately. Adding energy to the solid phase, the substance goes through a phase change.
Solutions are homogeneous mixtures. Three conditions are necessary to describe a solution: solute, solvent, and temperature. The substance dissolved is called the solute and the dissolving medium is called a solvent.
Gases and Their Properties (Standards: CH4. a-f)
The kinetic molecular theory describes the motion of atoms and molecules and explains the properties of gases.
CH4 Lecture Notes
CH4 Labs and Activities
CH4 Sample Test Questions
CH4 Cram Sheet
Solutions (Standards: CH6. a-d)
Solutions are Homogeneous mixtures of two or more substances
CH6 Lecture Notes
CH6 Labs and Activities
CH6 Sample Test Questions
CH6 Cram Sheet
Chemical Thermodynamics (Standards: CH7. a-d)
Energy is exchanged or transformed in all chemical reactions and physical changes of matter.
CH7 Lecture Notes
CH7 Labs and Activities
CH7 Sample Test Questions
CH7 Cram Sheet