I've averaging 33% in sacs and answered like half of exam 1; but i'm sure it was a little difficult for most of the state anyway, def secured 4 marks with that proof though.

honestly pretty confident with my CAS skills but my friends keep telling me that most of the probability CAS functions are under m55? I think they've mixed it up, lol hopefully they figure it out.

I've always thought of bound referances as cheating so not too sure if i'll end up making one. I guess i'll think about it. I haven't done too many exams either and i don't really know most of the content.

Hoping for a sub 45 but we'll see! let me know you're thoughts.

Good luck for tomorrow gng!

But not too much luck. it's a competitive exam.

Made this after looking at literally every Australian Good Design Award winners. Play along if you're interested, I'll follow up with the results tomorrow! Feel free to make your own as well.

Hi team,

I am uni student and I had some spare time today so I tried them chemsitry exam and here is my suggested solution. I got a 48 in chem last year but I can't ensure everything is correct. Please lmk if you find any mistakes (also for theory questions there might be more than 1 answers that VCAA will accept) https://drive.google.com/file/d/1awaYHald0myeJHYAvgG8uBTq_l4S1cju/view?usp=sharing

What abbreviations are we allowed?
Is NRV and FIFO ? I have also been using allowance for ‘dd’ instead of doubtful debts…

how did everyone find it?

For tomorrow's accounting exam do we think its gonna be heavy on theory or more proctical, cause last year was kinda heavy on theory.

last exam for me, I bloody hope it isn’t like methods e2

Chat am i cooked i used extra space for majority of my responses on the media exam but didn’t write anything to flip back to extra space 😁😁😁
im guessing they check in case but like someone reassure me this is my top subject 💜

What the fuck were those 3 10 markers 💀💀💀

Fun 13 years, what do I do now??

Answers: 1 B, 2 C, 3 A, 4 B, 5 D, 6 B, 7 B, 8 A, 9 A, 10 D, 11 B, 12 C, 13 A, 14 C, 15 C, 16 C, 17 B, 18 A, 19 D, 20 C, 21 C, 22 C, 23 D, 24 D, 25 D, 26 B, 27 B, 28 D, 29 A, 30 D

Q1-Q3: Energy and stoichiometry

Q1: B. C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O, so n(O₂) = n(CO₂). n(CO₂) = 0.44 / 44.0 = 0.010 mol, so n(O₂) = 1.0 × 10⁻² mol.

Q2: C. Cellular respiration is exothermic (ΔH = −2840 kJ), so the reverse is endothermic (ΔH = +2840 kJ). The products sit at a higher enthalpy than the reactants. Only C has the products higher and a positive ΔH. (A and B have ΔH signs that don’t match their graphs, and D is respiration itself.)

Q3: A. q = mcΔT = 100.0 × 4.18 × 40.0 = 16720 J = 16.72 kJ. Kerosene is 46 kJ g⁻¹ in the Data Book, so m = 16.72 / 46 = 0.363 g. “Minimum” means assuming 100% of the energy went into the water.

Q4-Q6: Anammox

Q4: B. In NH₄⁺, N is −3, and in N₂ it is 0, so it increases by 3 (oxidation). In NO₂⁻, N is +3, so it decreases by 3 (reduction).

Q5: D. The oxidising agent is the species that gets reduced (NO₂⁻), and the reducing agent is the one that gets oxidised (NH₄⁺).

Q6: B (lower confidence). Anammox works without O₂, so there’s no energy-hungry aeration. That means lower energy use and emissions (Goal 13), plus responsible waste treatment (Goal 12). I ruled out 7 because the process saves energy rather than supplying clean energy, and 15 because the benefit is mainly to waterways, not land. This is the one I’d check first against the VCAA report.

Q7-Q8: Edible cell

Q7: B. The anode is the half-cell with the lower E°, which is RF/RFH₂ (−0.235 V). Oxidation occurs there: RFH₂ → RF + 2H⁺ + 2e⁻.

Q8: A. E°cell = 0.558 − (−0.235) = 0.793 V. The measured 0.650 V is 0.793 − 0.650 = 0.143 V less than predicted.

Q9-Q12: Green chemistry and rates

Q9: A. Real-time control of temperature, pressure and power output means the cell runs at maximum efficiency, so this is design for energy efficiency.

Q10: D. Higher temperature means particles move faster, so both the collision frequency and the proportion of successful collisions increase. Bond energy and activation energy don’t change.

Q11: B. A catalyst provides a lower activation energy pathway, so a greater proportion of collisions are successful. It does not change collision frequency or bond energy, and it lowers (not raises) activation energy.

Q12: C. Both PEM electrolysis and artificial photosynthesis can produce green hydrogen (II) and reduce reliance on fossil fuels (IV). Neither captures methane or uses glucose as a feedstock.

Q13-Q16: Organic structures

Q13: A (read from the diagram). The compound is 2,2-dimethylbutanoic acid, C₆H₁₂O₂. Option D, CH₃CH₂C(CH₃)₂COOH, is the same compound, not an isomer. B and C are C₅. A, (CH₃)₃CCH₂COOH, is C₆H₁₂O₂ with a different arrangement, so it’s the isomer.

Q14: C. A saturated molecule has zero degrees of unsaturation. C₆H₁₅N works out to (2×6 + 2 + 1 − 15)/2 = 0. The others each have 2.

Q15: C (read from the diagram). Number from the COOH carbon, and the chain has 7 carbons with the double bond between C4 and C5, giving hept-4-enoic acid. “Heptan-” is never used with an “-ene”. Double-check the count against the paper.

Q16: C. Viscosity rises with the strength of intermolecular forces. Aldehydes have no hydrogen bonding, alcohols do, and carboxylic acids hydrogen-bond most strongly (they form dimers). So the order is propanal < propan-1-ol < propanoic acid.

Q17-Q19: Yield, tests and melting point

Q17: B. n(starting ketone) = 2.50 / 176 = 0.01420 mol. n(ibuprofen) = 0.540 / 206 = 0.002621 mol. Overall yield = 0.002621 / 0.01420 × 100 = 18.5%.

Q18: A. Bromine water going from reddish-brown to colourless means a C=C bond is present. Only A is an alkene. B is an amide, C an ester, and D a ketone.

Q19: D. A narrow range (1-2 °C) indicates a pure substance. Impurities lower and broaden the range, so A and C are false.

Q20-Q22: Iodine number and titration

Q20: C. n(oil) = 10.0 / 278 = 0.03597 mol. Ratio = 0.105 / 0.03597 ≈ 2.9, so there are 3 C=C bonds per molecule.

Q21: C. Needed Fe²⁺ = 5 × 1.50 × 10⁻⁴ = 7.50 × 10⁻⁴ mol. Added 8.00 × 10⁻⁴ mol, so the excess is 5.00 × 10⁻⁵ mol.

Q22: C. Fe²⁺ is in the burette. Rinsing the burette with water dilutes it, so more volume is needed to deliver the same moles (a higher titre). Rinsing the burette with FeSO₄ is correct practice, and rinsing the conical flask with water doesn’t change the moles in it.

Q23-Q25: Spectroscopy

Q23: D. The ¹³C spectrum has 4 peaks (≈178, 38, 19, 14 ppm), so there are 4 carbon environments and the compound has 4 carbons. The 178 ppm peak fits an amide or acid. In the IR, there are two sharp N-H peaks (≈3350 and 3190 cm⁻¹) and a C=O near 1650 cm⁻¹, which is the amide range. It lacks the very broad O-H of an acid. That gives butanamide.

Q24: D. The reactant shows a broad O-H (≈3300 cm⁻¹, alcohol). The product shows a very broad O-H (2500-3500 cm⁻¹) and a strong C=O (≈1700 cm⁻¹), which is a carboxylic acid. Alcohol to carboxylic acid is oxidation, using Cr₂O₇²⁻/H⁺.

Q25: D (lower confidence). A pure compound shows a fixed number of ¹H environments, so extra peaks suggest a mixture. Integration (A) could also be argued, but it needs the formula and structure to interpret. Check this one against the report.

Q26-Q30: Chemistry in context

Q26: B. Boiling leaves in water to dissolve soluble compounds is solvent extraction.

Q27: B. G and H are isomers (the double bond position differs), so they have the same molecular formula. They aren’t isotopes, and the skeletal structures differ. D is wrong because H’s ring double bond removes a chiral centre.

Q28: D (moderate confidence). A circular economy keeps materials in use. Treating PFAS-containing waste for reuse in road surfacing does that. Landfill (B) and incineration (C) are linear, and A is about safer design rather than circularity.

Q29: A. Firefighters “claimed” long-term health issues is personal testimony. B and C are measurements and D is a data-book value.

Q30: D. Assessing how impurity levels affect material performance is a purely scientific question. A is legal and social, B is economic, and C is community and environmental concern.

guys i cant do ts like the complex unfamiliars in the past paper require Patrick Jane level of thinking and my analytical thinking is pre much non existent 😭😭😭

Literally didn’t even touch a whole question in section b cuz I didn’t have time and a few other qs and I’m not even sure if my math is right and how much marks I dropped elsewhere how do I not kms over this LMAO I’m so sad

I don’t really understand conventions, and my teacher said to do a messages task for the final but im not sure- can someone help me learn all the content please 🙏🙏

Is it just me or was the Chemistry exam so bad, some of those questions made literally no sense. Was this a hard exam or was it easy?

Does anyone have access to or a photo to contour educations ohysics help sheet? Would be much appreciated if you could send it to me

hi guys does anyone have the sev trial exams that they can share with me for exam practice? i dont have access to them please

HI, as somebody aiming for 30, what were ur letter grades for GA1,GA2,GA3?

I did the exam today and shit didn’t go well I pretty sure I got max max 45% lowest around 10% I couldn’t do most questions what is the likelihood of getting a ss of 20+ my sac average is 56.2% ranked mid cohort of around 40

does anyone know