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Yeah I know but I like to understand the processes behind things like that. Helps in memorisation

The process is polymerisation forming polyethylene from ethylene monomers. Ethylene is changed from a gas to a liquid under pressure and heated in the presence of a catalyst to produce polyethylene. The double bond within ethylene is broken and a covalent bond forms between monomers resulting...

Or it would mean changing the 4.18 x 10^3 j/kg/K to grams giving would 4.18 J/g/K which is where you got your value from, so that method is perfectly acceptable

Just wondering what everyone expects, or hopes, there mark will be Ahh forget this, I screwed up the poll somehow, now the internet is screwed. Bah! Can this thread be deleted?

Ahh that is good news. For syllabus point I was thinking off does not specify that you have to name a scientist, just know there field

I stand corrected. Until now I've ignored Section 9.1

Usually it's ozone that destroys UV. You sure thats what you meant? And stuff on photochemical smog couldn't hurt

Sounds like you are straining to do some explaining, anyway you write whatever you want in the exam

Science Teachers Association of NSW

It's not complex. It's basically the same answer over and over again cause everyone is bored I guess. I know I am

You DO NOT need to know a named scientist. Just describe a field of science

Thanks, so the book was wrong. I've always expected it was a shit book

I know, but that is hardly an economic thing. I'd probably put that in a more historical thing as the older buildings and statues tend to be limestone

Wow that's is one acidic solution

Economic threat? Explain

Can someone tell me if my above post is correct concerning 1-butene

What are you talking about? There is no reason you would have to draw a diagram to explain intermolecular forces. Yo're diagram sounds like the strength and concentration of acids diagram EDIT: Sorry I didn't read the entire post

It causes confusion for idiots

An idiot's guide is to take the negative of the half-reaction HIGHER on the table and add add that to other reaction.

Between molecules