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    May 2010
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    Sri Lanka
  1. Not to be an ass... but nope, it's C for 17. Reactant particles could collide with insufficient activation energy/wrong geometry and not react. Sure about this? According to the collision theory, the colliding particles need to, amongst other things 1. Have enough energy to react 2. Collide with the right geometry And increased frequency of collision (i.e increased concentration) will lead to more collsions. So if I'm correct, all options given are correct, and therefore the answer is D. So in a complete combustion CO2 is formed? Sounds familiar... Increased collision doesn't guarantee all
  2. They are asking which ones are incomplete combustions. The first one is complete combustion Right. But how can you tell that the first is a complete one? Ok we have three equations in the question. During complete combustion, there is enough oxygen for the fuel to burn ans as a result carbon dioxide(prodcut)is formed. However, during incomplete combustion there is a lack of oxygen therefore resulting in an inability to form carbon dioxide. In many cases during incomplete combustion carbon monoxide will be formed. Now in the question given, the first equation has formed carbon dioxide but th
  3. They are asking which ones are incomplete combustions. The first one is complete combustion
  4. The answer is D for question 17 and the answer is C for question 29. if you could tell which parts you were confused about i will clarify your doubts.
  5. i don't know if i am correct but i think these questions are testing your understanding of the Avogadro constant especially question 4. When i did the math i got 2. as C and 4 as D. And if i am wrong anybody is free to correct me. You have to remember the formulas they taught you at school like moles= mass/Mr and so on. We should also know for example if we take carbon its molecular mass is 12g or more precisely 12.01 g. What this means is 1 mole of carbon is 12.01g. 1 mole of carbon or 12.01g of carbon equal to 6.02 X 10^23 atoms, this is the avogadro constant as you may know. We should un
  6. Well our teacher told us to look at the rate of reaction then look at the concentration and see how the rate increases or decreases with the concentration. That's why i got confused. But thank you for your help. Thank both of you.
  7. Hi! I do chemistry HL and in exams i always get the order of reaction correct but i don't get the reason correct. So could somebody please help me understand the reason for obtaining a certain order of reaction. Thank you. I have attached a past paper. I was doing the first question.
  8. Hi! Im starting Japanese language B starting yr 13 since I'm struggling with Italian abintio. I've lived in Japan for 4 yrs and i learnt it for 4 yrs but our school does not have Japanese teacher now i have to go through the syllabus alone with the help of my dad. I bought the book Basic kanji book volume 2 but it doesn't have all the Kanji i need only some. If you can please tell me where i can find the first 500 Kanji on the net. Thank you.
  9. I hate it too it gives you a sense of clusterphobia. As if u were trapped and could not breathe. I thought it was easier to compare it with "Like Water for chocolate" the whole idea of the ghost and the guilt. Don't you feel that Emile Zola's being extremely scientific? I believe he represents the later relationship of Laurent and Therese with such indifference and as i mentioned before makes u feel so trapped and clusterphobic. I suppose it's written in an interesting way.
  10. The ghost of Therese's husband Camille that both Laurent and Camille sees. The fact that its just the two of them seeing it i believe is a representation of guilt.
  11. I would have to agree and that's why with advice from you all especially i've restructured my title to "Representation of guilt of the protaganist through supernatural elements in Like Water For Chocolate and Therese Raquin. I especially aknowledge what desi_dakku said. But thank you everyone:)
  12. Your presentation must be formal. You can't say stuff like "this happened like 'you know'" i don't know that's just an example. Also structure your presentation so each point links to the other. Speak with confidence
  13. Is this title good? Does it sound right? How does the element of supernatural help represent guilt in the protagonists of Like Water for Chocolate and Therese Raquin?
  14. Yes titration can be used for acid/ base.
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