Search results

  1. minijumbuk

    OMG! Did we get slipped a 4U paper?

    In reference to: OMG! Did we get slipped a 2u paper? and OMG! Did we get slipped a GENERAL paper?
  2. minijumbuk

    How can we observe a chemical change?

    I know this is a pretty stupid question to ask, but I'm dying without the answer I know about observing the following factors: - Colour change - Heat change - New substances formed But, say if we add cold milk into hot tea. Initially brown, the milk slowly turns it into white. Now there is a...
  3. minijumbuk

    English essays and bands

    What would be the range for an English essay for a band 4, 5, and 6? I'm getting shitty ranks and shitty marks... My average is probably around 12/20 My rank is 121/166. My school was around rank 65 last year. I entered that on the calculator, and it came up with a horrendous bottom 27th...
  4. minijumbuk

    A few logarithm questions

    My first time posting question for maths xD 1. If (2m)n = (8n)m, and m,n≥0 and n=/=1, find m in terms of n. Answer: (3n)1/(n-1) 2. 2x+y = 6y , 3x = 6(2y) Answer to 4 d.p. Answer: x= 2.7097, y = 1.7096 3. Express in rational denominator: (√5 - √3) / (√2 + √3 + √5 ) Answer: (√15 + 3√10 -...
  5. minijumbuk

    Screw HSC markers

    Imagine a marker with 200 papers or so to be marked. By the time they're finished with the 3rd or so, they'd already be extremely bored. Now, we all know that papers only get seen once. Often in extended responses in subjects such as science, there may be a few questions that they just glimpse...
  6. minijumbuk

    Amphiprotic KH2PO4

    This was a question in my half yearlies: A solution of KH2PO4 contains the ion H2PO4-. H2PO4- is an amphiprotic substance, yet in solution, the pH is greater than 7. With relevant equations, explain why. This is what I wrote: H2PO4- has 2 equations, one acting as acid (donates H+), one acting...
  7. minijumbuk

    Soda Water

    Is soda water the common name for carbonic acid? I've seen several books taking carbonic acid as "soda water" Then in a prac. experiment, we measured "soda water" to be basic. Can someone please clarify if the basic "soda-sound-alike" is actually Sodium Bicarbonate, and "soda water" is...
  8. minijumbuk

    Oxidation/Reduction question

    Hey, I was just wondering... In the data sheet, for example, wouldn't the strongest oxidant naturally be the weakest reductant?
  9. minijumbuk

    Adaptive radiation

    Can anyone please explain to me what adaptive radiation is?
  10. minijumbuk

    English Scaling

    So...What is the scaling for English Advanced? In the Preliminary yearlies, I got 1 mark above the mean, which was 55%. Just wondering if maintainance of around 55-60% would scale me down heaps. Oh and might as well ask for all my other subjects... How is the scaling for Physics, Chemistry...
Top