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But there isn't much beyond 2019 apart from trials

plssssssssssssssss

Did Nesa introduce Maths Extension S? What is next Maths Extension Z?

I am not looking for trial papers tho

There actually is quite a lot you can do

so then would i write rx >= 1 x>=0 which is true since given that x>=0?

Oh wait so I can't do what you did?

Oh I didn't realise that you were allowed to just move things around and prove. I thought you had to either use LHS - RHS or using the AM/GM inequality

I am finding it hard to do some of the cambridge inequality proofs. Does anyone have tips to figuring out how to do them?

I tried this ink pen out. I find it really good for writing but I am scared of the possibility of ink disappearing or anything like that. Could someone please verify whether there is nothing wrong with using these pens for the hsc?

I have some questions Is the heat of combustion the same as enthalpy change? What are the formula for enthalpy change and heat of combustion? I have seen that you use q=mc(delta)t and then use delta h = q/n to find enthalpy change. I have also seen that you use this same formula for the heat...

Hope it helps

Ok I will try and give a sort of method: 1. Calculate the number of moles for the reactants 2. Find the limiting reagent To do this I will use this example: The mole ration between the reactants in 1:3 For n moles of AlCl3 the moles of NaOH required is: number of actual moles of...

Is the answer around 7.8g?

In a chemistry practical, how would your graph look if you have multiple variables? What if you recorded number of carbon, temperature, time, colour? How would do something like this with multiple variables?

Thank you so much jimmysmith560!

Does anyone know how I can fully prepare for curveball questions (ones where marker aims to catch you off guard) in tests? Do I just make sure I completely understand topics? Are there other things I would need to do?

Bro, just watch Ali Abdaal's study vids. They are very useful!