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For cations I thought it was a trimethylammonium ion?

LOL, can I sig this?

I'm a bit iffy on the AAS question, anyone else got nice answers for that one?

Um I think the question specifically asked for the purity of the dry ice :L I'm not sure if that answer would lose marks since it's technically right..

I also wrote that lol, but I think as long as you don't excessively write the number of decimal places, they wont mark you down usually..I hope.. Is it still possible for me to obtain 90+ in chem guys? School rank: top 20 Total average rank: 50s/108 I think with a mark of 78 ish compared to...

You think that's bad? I got Q15 wrong cause I cannot fkin differentiate which is heavier, 2 sodiums or 1 sodium and 1 Hydrogen -.-

Haha ikr sucks when your run out of time, like the 7 mark soaponification, my hand literally stopped working it started to write squiggly horizontal lines instead of words -.-

I also did cell Y and didn't get to finish the industrial kc one, imma cry now.

Yep 13 was b I got 3 wrong atm QQ

Replace the initiator with just the monomers free bonds sticking out of the brackets and then on the right it's the same thing but with an n on the bottom right side.

Anyone else not feel like studying even though it is less than 15 hours away?

You can get oxygen, but at a much higher voltage due to the difficulty of interaction between the water molecules and the anode, in terms of industrial, due to the high amounts of electrical used, you can definitely get a mixture of both. But in terms of the school lab, it's chlorine gas.

After as the mercury cell was causing environmental hazards (mainly mercury) and required too much electricity to produce NaOH

The Warragamba dam in NSW is close to multiple mining sites and farmland which can lead to pathogens in waterways or possibly the leaching of heavy metals. Catchments close to farmlands suffer from possible pathogen exposures due to animal faecal matter, containing harmful bacteria such as E...

Hmm for quantitative tests many of my class members and I use the winkler method lol, though the electrochemical cell also seems nice :3

I did it didnt i? lol

Copper metal is pink I believe and the ions are blue. Q2. In a galvanic cell where copper is the cathode, the blue colour solution of the copper sulfate fades slowly due to the copper ions being reduced to become copper metal. When the copper cathode has an excess of electrons, produced by the...

Another one of these "broad" questions, hate them as it is hard to guess the marking criteria for them. Ethene is an alkene mainly obtain from the cracking of petrochemicals in which it can undergo different chemical reactions to create products for different applications. Ethene can...

Similarities: - Both processes require energy in order to crack the hydrocarbon into smaller chains. -Ethene is formed as a result of large hydrocarbon chains are cracked. Differences: - Thermal cracking of hydrocarbons result in free radical hydrocarbons, which are cracked to obtain ethene...

Still on that quest to find the holy calculator? lol I haven't even finished all HSC past papers QQ