why does the addition of acetone cause the polystyrene to change shape?
science - SraJMcGin, Thursday, November 4, 2010 at 4:15pm
Please try some of the following links, especially the first one:
science - Karen, Thursday, November 4, 2010 at 4:20pm
thanks that helped! also
what is the structure formula for the acrylate ion?