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  1. xIshtar

    All chemistry Doubts here :)

    Yeah, don't just say that the Zinc is getting reduced, because it's not necessarily true as Zinc alone cannot be reduced.. Zinc Oxide however can, so you write ZnO is being reduced.
  2. xIshtar

    All chemistry Doubts here :)

    Yes, I get what you are saying now.. You have to say the entire reactant getting oxidised.. Ie, if it was ZnO, then you would say the Zinc Oxide was reduced rather than just the Zn.
  3. xIshtar

    Question regarding exams.. pliz help

    No, if you think you've passed, you don't have to do them again (:
  4. xIshtar

    All chemistry Doubts here :)

    I read the wrong questions xD... My bad.. For that question 3.. The answer is still B, but it is because the NaCl will cause the melting point and boiling point to rise above 100C.. And in addition as it is an ionic compound it's MP and BP are likely to be quite high. As for Question 21, the...
  5. xIshtar

    Hows it going

    Not bad, paper 1 is going pretty well, and paper 3 is getting better, still I'm hopelessly scared for paper 3 :S And yours?
  6. xIshtar

    All chemistry Doubts here :)

    If you still don't get these, I'll explain now: Question 3, NaCl is a salt, and thus is neutral. When you dissolve something in a pure substance, it's melting and boiling point change, so it is B. Question 21, relies on your cation tests, which are essential for the paper we have already done...
  7. xIshtar

    Yeah too early to say but....

    Yeah, 16 :D
  8. xIshtar

    Chem help!!!

    Hmm, if you want to take my answers feel free to, if not, I don't mind man.. The statements are very vague, and I didn't know how to interpret them, so I just used Physics knowledge and explained how a power station worked.. If you look in your book, it might be better than asking on the...
  9. xIshtar

    Chem help!!!

    Well.. Heat energy by burning fuels.. The process is really simple.. It combusts, which is used to heat steam and turn a turbine and then a generator.. As for the Radioactive isotopes, for a source of energy just know that fission is the process, and the entire energy making is similar to that...
  10. xIshtar

    All chemistry Doubts here :)

    Hmm, it was the way I saw it. When no oxidation state is given, just assume it from knowledge.. I have never seen Zinc (ii) given, only zinc, which is always 2+ So as you said Zn(OH)2 -> ZnO + H2O
  11. xIshtar

    Yeah too early to say but....

    Seems cool, I'm planning on learning Java/ getting better at photoshop over the summer :P My little brother who is 11 is better than me at photoshop, he makes some pretty cool stuff...
  12. xIshtar

    كيف كان إمتحان اللغة العربية اليوم ؟؟

    مرحبا، كتبته في هذا مترجم جوجل وأنا أقرأ رسالتك ليس لدي فكرة، لا أفعل هذا الموضوع، ولكنني اعتقدت فقط أنه سيكون باردا للرد على هذا النحو : ف
  13. xIshtar

    Maths C2!!!!!!!!!!!!

    Same.. I agree that C2 was easier than C1.. My friends got the answer by guessing xD.
  14. xIshtar

    Yeah too early to say but....

    Wow, that must be rewarding xD.. Over here in Cyprus it gets pretty hot too, but the main problem is humidity D:.. :beer: To laziness?!?
  15. xIshtar

    Environmental Management Doubts here!

    Didn't want to bring this up, but I noticed the name, and then the word shoot.. Best of luck in the exam, the course isn't offered at my school ):
  16. xIshtar

    Yeah too early to say but....

    Haha, naw, I've never killed an animal in my life.. I only said it like that cause if you don't see it that way, it can become quite emotional when an animal dies.. In all fairness though, I read back on what I wrote and it does sound slightly inconsiderate :P
  17. xIshtar

    Pysics Paper 31 (Discussion only)

    I wrote 2260 or something along those lines. The warning time was the time between when the tremor was felt and when the tsunami would arrive at the beach, so you had to use info from the part (i) before. Sorry guys. Overall, the paper actually went nicely for me. I agree completely, I have no...
  18. xIshtar

    All chemistry Doubts here :)

    Well, the distillate is what collects in the beaker. So the NaOH, will become more concentrated, meaning that the pH of whats left in the flask will be higher than what it was before. (Alkaline) In addition, thinking logically, if it becomes more concentrated, the pH of the distillate must be...
  19. xIshtar

    Yeah too early to say but....

    Heheh.. I have a job. Have done for the past 2 years actually.. :D I work at a veterinarian clinic, as it's my choice of occupation later on :P It's awesome, I can give injections, cut animals open, help with operations, stitch animals back up etc... Ofcourse, I don't get paid for doing it, but...
  20. xIshtar

    Physics Doubt

    Basically, if the frequency is 1.5 times the value, there are 1.5 x the amount of waves there was previously.. Same amplitude, just more bunched together. The timebase would not need to be changed for B, as there is no more waves, just a change in amplitude. The V/cm shows how much it is...
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