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About Wayne Breslyn
Dr. B is chemist and learning scientist who enjoys creating videos to help students with chemistry and other science topics. He has taught science for over twenty years in the U.S. and internationally. He holds a Ph.D. in Curriculum & Instruction from the University of Maryland where he works on research projects investigating how people learn science.
Read his recent research article in the Royal Society of Chemistry’s Chem. Educ. Res. & Practice journal at https://pubs.rsc.org/en/content/articlehtml/2020/rp/c9rp00145j .
You can find more help with chemistry at www.Breslyn.org .
Recent Videos from Wayne Breslyn
Lewis Dot Structure for O3 (Ozone)
A step-by-step explanation of how to draw the O3 Lewis Dot Structure (Ozone).
For the O3 structure use the periodic table to find the total number of valence electrons for the O3 molecule. Once we know how many valence electrons there are in O3 we can distribute them around the central atom with t… How to write the Structure for 2-Chloro-2-methylbutane (tert-Amyl chloride)
To write the structure for organic molecule 2-Chloro-2-methylbutane we’ll start by writing the longest Carbon chain (called the parent chain). Pentane is an alkane with four carbon atoms connected with single bonds. Next, we’ll number the Carbon atoms one through four.
Since it is 2-Chloro-2-… Balance the Redox Reaction for MnO2 + Al → Mn + Al2O3
To balance the redox reaction foMnO2 + Al → Mn + Al2O3 we’ll follow five basic steps (see below). In this video I’ll walk you through the process for successfully balancing this reduction-oxidation reaction. We'll use the ion-electron method, also called the half-reaction method, to balance this…
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