Khan Academy: Osmosis and Tonicity

Does your class get confused when discussing osmosis and tonicity? Explore the relationship between osmosis and tonicity to further differentiate between the two processes. The lesson concludes with a class-led discussion about...

Learn about diffusion, osmosis, and concentration gradients and why these are important to cells. [18:58]

Khan Academy presents the rules and processes of naming alkanes and cycloalkanes. [12:34]

How can oxidizing and reducing agents be identified? Sal Khan will explain. [8:25]

An introduction to mechanisms and the rate determining step. Review the example of finding rate law of multistep reaction with an initial slow step. [8:36]

Explaining group and period trends in atomic and ionic radii. [11:26]

An introduction to oxidation states, oxidation, and reduction. Find some tips for remembering oxidation and reduction. [10:09]

Identify the anode and cathode in a galvanic cell and calculate the voltage using standard electrode potentials. [4:28]

Explains what covalent bonds are and the difference between them and ionic bonds. Discusses the properties of polar and non-polar covalent bonds, and single and multiple covalent bonds, and gives analogies and examples of how covalent...

A video lecture explaining elements and their differing properties. Also discussed is how elements relate to atoms and the particles that make up an atom. [13:08]