chemistry

  1. A

    Free Online Y10, Y11, Y12 Science Tutoring help

    Hey guys! Learning in lockdown can get pretty frustrating so to help out we’re offering free help for anyone that has questions on physics or chemistry! Visit our website (link in first image) to book a quick 15 minute session to ask us anything. We're Olympiad-trained James Ruse graduates who...
  2. A

    Free Online Y10, Y11, Y12 Science Tutors

    Hey guys! Learning in lockdown can get pretty frustrating so to help out we’re offering free help for anyone that has questions on physics or chemistry! Visit our website (link in first image) to book a quick 15 minute session to ask us anything. We're Olympiad-trained James Ruse graduates who...
  3. S

    Organic Chem: Substitution Reaction

    Is there any rule about which hydrogen in alkane will be replaced by a halogen atom during substitution reaction as per below? Thank you in advanced!!!!!
  4. scholarpuppy

    YR11 SUBJECT SELECTION help! thanks xx

    Hello! I am YR10 in a top selective school, soon going to go through the YR11 subject selection process and willing to accept any advice at all. I am aiming to get a 98+ atar and I hope to study entrepreneurship/economics and design a double degree or medicine. Thank you. I plan on taking: -...
  5. P

    Acidified oxidising agents

    Why does potassium permanganate KMnO4 become a better oxidising agent when it is acidified? As opposed to being in water, or a basic solution?
  6. C

    Atomic Absorption Spectroscopy - help needed asap!!!!!

    Does anyone know how to answer this: An anlaysis of the accuracy of AAS I literally can't find any information on its accuracy, please help!!!
  7. imxprt

    Chemistry percentage composition HARD.

    Hey can anyone help me with this question. A steel company requires 2 tonnes of Fe. the company decided to mine from a site containing goethite. FeO(OH). which contains 31% of the mineral. how much of the goethite needs to be mined to obtain 2 tonnes of Fe.
  8. G

    Choosing Sciences

    I'm going into Year 11 this year at a top selective school and I'm taking the Asian Five (Ext Maths, Adv English, Chemistry, Physics and Economics), plus Geography. My school only lets me choose up to 2 sciences. After speaking to some people who have graduated recently, I've heard that physics...
  9. H

    99.75 | 1st Year Medical Student | English Advanced, Maths Advanced, Ext 1 and Ext 2, Chemistry, UCAT and Medical/Dental Interview Online Tutoring

    Hello everyone, I am a Sydney Boys graduate of class 2020 with an ATAR of 99.75.With my experience teaching a range of students from all capabilities and ages, I am confident I can work with any student and help them achieve their goals. Having been part of a competitive environment, where...
  10. A

    Private/Group Tutoring for Physics and 2U Maths

    Hello guys, my name is Atef and I am a graduate with an ATAR of 96.45 and marks of 90 in both physics and 2u maths. I have been teaching for 6+years which means that I'm extremely comfortable with the new syllabus since I've seen all the topics at a higher level in University. What I offer: I...
  11. N

    Physics, Chemistry or Biology tutoring?

    Hi, I'm going to be going to year 11 next year and I'm getting kinda stressed about my science subjects. My subjects for next year are 3U Maths, advanced English, Chemistry, Biology, Physics and Geography. I am already doing English and Maths tutoring but I'm really scared of how I'm going to...
  12. C

    Free Tutoring Year 9-11 Chem, Phys, Math Adv, Ext 1

    Hello! I am offering free tutoring for physics, chemistry, math advanced and ext 1 for year 9-11, via discord (preferably) or email. I am just started year 12 this term. I am currently doing physics, chemistry, math ext 2, economics. During my free periods and lunch time I usually help my...
  13. C

    HELLLLLPPPP PLEASEEEEEEEEEEE

    Hi! So for a task in school, we have to design our own experiment but I've spent hours researching and can't find anything. Does anyone have any ideas for experiments I could do???? Please this is urgent. You will complete an investigation, in groups, to explore the equilibrium of carbonated...
  14. Z

    Drop Economics or Chemistry?? Please Help

    Hey All, I am currently doing Ext1 Math, ADV English, Legal Studies, Economics, Chemistry and Physics for perlims. I am planning to pick up ext2 math for year 12 and don't want to do 14 units. Thinking of either dropping economics or chemistry. Does anyone have any opinions on either of the...
  15. P

    Subjection Selection Year 10

    I'm currently not sure what subjects to choose this year for my HSC. I'm certain that I want to take Economics, 3U Math, 3U English but I'm not sure whether to take Phys, Chem or Modern History. I did quite well in a recent Physics test, in comparison with other peers so I don't know if I should...
  16. isaezra

    what subjects to pick, and what courses to apply for, to become a doctor without wasting your money and time

    TL;DR If you want to go into medicine; 1. take chemistry, and advanced math or higher 2. sit the UCAT 3. apply for early entry into the "Bachelors of Medicine/Bachelor of Surgery" (MBBS) at JCU and Curtin 4. if you don't get in, apply for regular UAC entry into any MBBS 5. if you don't get in...
  17. M

    Balanced chemical equation help

    Hi! I need help balancing an equation for my textbook questions and I have tried everything and I can’t seem to work it out. ‘Why is the following equation not balanced? Find the errors and correct them’ 3Co3+ + 2HPO42- Co3(PO4)2 + 2H+ thank you!
  18. M

    Solution stoichiometry help

    I have a question I need help with and I’m not sure on how to actually work it out. The question is ‘solutions A and B are labelled ‘0.15 M CaCl2’ and ‘0.25 M CaCl2’ respectively. Both solutions contain the same amount of CaCl2. If solution A has a volume of 50mL, what is the volume of solution...
  19. S

    HSC Chemistry/Biology tutoring

    Hello all, I am offering ONLINE science tutoring for HSC students. I am well versed in using the online Zoom platform to teach science, as it is a strong component of my degree. I have been tutoring over zoom for over a year. About me: - current pre-service teacher in my 4th year of a...
  20. L

    Chemistry Practical Assessments

    Hi Guys, I've been looking at the Year 12 assessment schedule and at my school the prac is worth 40% of internal marks. This year for chemistry, because our school was shut down, our practical assessment task was just at home and we had 2 weeks to do it, so I'm not too familiar with how it...
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