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What is a basis step? The way i learnt it was in 3 steps Prove it works for n = 1 (or otherwise lowest possible integer) Then do n = k And then do n = k + 1 (unless otherwise asked)

Thanks, now I don't have to worry about it :)

Is it necessary to write a conclusion after we prove the third step in induction. What exactly do we write?

Spent 50 minutes on this section. This kinda ruined my pace, so I had to erase one of my core for the third section :( The second poem really caught me off-guard,it was pretty short so I struggled to find techniques under pressure. FML

I hope there is nothing on research tasks, like plastics (from ethene - PVC, polystyrene, etc), or lead acid cell/dry cell and another cell or chemical occupations (chem monitoring module) or in industrial i hope there isnt the alternative resource (rubber research task).

re: HSC Chemistry Marathon Archive What happens if the neutralisation is with a base that doesnt have hydroxide, like ammonia, is the enthalpy still the same as a weak base.

um.. for my English trials it was out of 105 Paper 1 Short Answers: out of 15 Creative: out of 15 Belonging Essay: out of 15 Paper 2 Texts VS Contexts: out of 20 Critical Study: out of 20 Representation and Text: out of 20 Total 45 + 60 = 105 Is there anything different?

I'm pretty certain I know how to name it, but there is just one confusing matter that my teacher talked about. She said that when you name haloalkanes the correct naming process (following IUPAC nomenclature) is naming it so that the side with numbering precedence is done according to the...

Thanks guys, really helped a lot. it seems the systematic names are basically the ones with the alkanes/alkenes thingo in it as well as the meth/eth thing. I'll probably remember it a lot easer now. I'm not really sure what IUPAC thing is, I just thought there were like three different sets of...

I always get confused with these. Can someone name all the IUPAC/Systematic/Common names we should know for plastics and acids Don't explain how to name hydrocarbons, i just need the chloroethane? chloroethene? idk PVC thingo and muriatic acid, formic and stuff. Thanks a lot.

Not sure if the questions are the same for everyone, but I'm a little confused on a particular question. Test 3 Question 1, it is about the bromine water prac. The question specifically says that bromine water is Br2, so when it reacts shouldnt it produce just C6H12Br2 and then the answer is...

re: HSC Chemistry Marathon Archive NaHCO3 can be used as a primary standard? The criteria that is necessary for a primary standard: - Easy to purify and store in pure form - Is not affected by moisture in the air, doesn't react so the mass stays the same - Water soluble, so it can be easily...

re: HSC Chemistry Marathon Archive The answer says C, but i'm pretty sure its B, though i'm not sure how to draw polymers from monomers. How would one do this question?

re: HSC Chemistry Marathon Archive If what you say is true, then how come it can be used for sulfuric and hydrochloric acid, as buffers affect both weak and strong acid/bases.

re: HSC Chemistry Marathon Archive For the above question: I'm guessing it has something to do with the fact that sodium hydrogen carbonate will act as a weak base in this case, and because acetic acid is also a weak acid, it makes the change in pH really minute. Therefore, hard to find...