Recent content by wowolaf

There are a number of reasons polyethylene has strong chemical resistance. Most of these stem from polyethylene's makeup - it's a long, long chain composed entirely of carbon and hydrogen. Because of this, it isn't a very polar substance, so there's nothing on the molecule that interacts...

Please, please show me. Hell, sign me up.

Think about it in terms of how many different molecules are affecting the rate at which the reaction occurs. I don't know whether or not you've discussed rate laws in your chemistry class or not yet, but if you understand them, the molecularity of a reaction becomes much more apparent. In this...

That question is trying to trick you into second-guessing yourself. Your reasoning that ΔG° will be negative for this reaction regardless of temperature is correct. Since -ΔG° indicates a spontaneous reaction, it does follow that this reaction is spontaneous at any given temperature. This may...

Well, just eyeballing it, it looks like you've got a couple things wrong there. This is an extremely exothermic reaction with a positive change in entropy. This means the product of this reaction is drastically lower in energy, and thus, more stable, than the reactant. I'll elaborate on...

From what I can tell, the two problems you'd face with using anhydrous sodium acetate are practicality and solubility. Even if you could use H2O to supercool the anhydrous form (it would be more difficult, as this form is less soluble in water -- without any water molecules of its own, the...