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Alkanes only undergo dispersion forces which are weak. Alkanols have the OH functional group which means it can also undergo much stronger hydrogen bonding. The stronger the intermolecular bonds, the more energy is required to break them -> higher MP/BP

Why are we still talking about this lol? How did you guys find your options?

I'll just dot point this but essentially: - The basicity of an elements oxide is related to its metallic character - As you move from right to left in a period, metals become less metallic and hence more acidic. They move from basic oxides (such as sodium oxide) to amphoteric oxides which can...

I think you are allowed to do more than one if you want but they'll only count your best one. I think. I could be very wrong on that. Regardless, you can't go above 100/100, these guys are trolls and you shouldn't have time to do more than one option imo

This is what I got (pretty sure its right but open to challenges). A loses 20MW, B loses 1.6 MW, C loses 3 MW, therefore in order from best to worst is BCA

Yay good :)

Depends on the marking scheme- its impossible to tell. One or two I'd imagine. And I know this is sorta off topic but just quickly, what did you guys get for the solenoid and balance question? Did you put that the balance reading increases or decreases?

This is what I got. Mass is irrelavant- orbital velocity is independent of the mass of the thing in the orbit

Surprisingly my 'alt' said exactly what I wanted to say haha. Yeah I got all of your answers someth1ng except I put B for 20. I reasoned that near the peak of the curve is where most of the energy is emitted and this corresponds to around 0.17 or B. I might be wrong though

Nice paper all up. The projectile was pretty hard by physics standards but doable. B is the most efficient power, then C, then A. I think for the tower, A falls straight down because it has no initial velocity whilst B goes into geostationary orbit as it carries the initial velocity of the...

Yep. Boron makes it P-Type conductor which leads to an excess of holes in the valence band so you can eliminate C and D already. Then holes go to the right because electrons go to the left (towards the positive end)

A calculation question to get everyone on their game:

I won't write a full answer but these are the main ideas. - Photoelectric effect causes emission of electrons - Each metal has a unique work function which is basically the energy required to liberate electrons from its surface -> the energy of incident photons (E=hf) must be above this in...

The amplitude becomes 4 times bigger and the period becomes one quarter of what it was originally. This is because EMF is equal to the negative of the rate of change of magnetic flux

I'm lightly going over some theory again and then I'll look at more papers. Next question: Discuss the advantages and disadvantages of AC and DC motors. (no need to follow write an answer- just dot point it)

Every 6 hours, it loses half of its mass. So after 6 hours, its mass is 5 (10/2) and then at 12 its mass is 2.5 (5/2) etc,

My two cents- when you are going for something as competitive as medicine, you can't afford to take subjects that are 'relevant' if they will lead to a lower ATAR. This is probably a very cynical view of education but right now, I would seriously suggest just keeping what you are confident will...

Haha what a day- right after chem finishes the league pass ends as well

Yeah good- I was getting worried for a sec lol but then I realised it had to be a troll haha. No one else is near though

how'd you get 12.7 for the pH? Its the ionisation of an acid lol and its the same question I posted earlier in p00n. Or are you trolling (I really can't tell haha)