Heat of Fusion and Heat of Vaporization
Learners examine graphs and read that the heat of fusion is the heat energy absorbed by one mole of solid as it is converted to liquid, while the heat of vaporization is the heat energy absorbed by one mole of liquid as it is converted to gas.
In this interactive and animated object, students distribute the valence electrons in simple covalent molecules with one central atom. Six rules are followed to show the bonding and nonbonding electrons in Lewis dot structures. The process is well illustrated with eight worked examples and two interactive practice problems.
I appreciate the effort put into this work but I would love to see some practice and problems. A table of various materials would also be helpful. Simply reading the text from the screen was no different that reading it from a book. I am not complaining, just indicating that I wouldnt recommend this to my students. What you have is an adequate to good introduction.Posted by Alan Arbour on 1/27/2007 12:00:00 AM Reply