Chemistry Prelim Practical Exam

I really don't know what to say about this paper.I'm not sure if my observations were correct.It was so much difficult than Physics paper.Firstly, I did on the titration.The instruction told me to stop adding the substance when the brown solution turns pale yellow. I kept on adding but the solution only turned light brown. My mind went haywired that time.I looked around.The pupils also had the same problem as me.I poured away the solution and started to re-do.Once again, the solution did not turn pale yellow.I decided to carry on with the experiment. Both my readings for the titration were 23.9 cm cube, same as Kah Boon who sat beside me.Then,there was a 5 marks question to plan an experiment to test for nitric acid,hydrochloric acid and sulphuric acid. I buzzed my way through.The second experiment was even more 'head-breaking'.All the tests that I did did not produce a visible reaction.Hence,I had to boil the solution to test for gas.The first part should be a compound consists of nitrate,because ammonia gas was produced upon heating.The second one should be calcium carbonate because effervescence was formed and the solution turned milky which shows that carbon dioxide was present.

Asyraff and Syafiq were among the many pupils who were frustrated with the experiment.I remained calm but was doubtful.Mrs Chow had marked the Chemistry Prelim paper and she told us that we did badly.Some of the students met her to know their mistakes.Asyraff,Nuqman,Nazreen,Kiong and I went to the new Sheng Siong to eat.Asyraff and I ate 2 thosai each.We ordered cheese pratas as we were not full.I walked home with Naz and Nuqman.I was slacking throughout the afternoon.Really nothing better to do.The song I composed today seemed sucks except the chorus.I'll modify it next time.Last night,I watched music videos on YouTube.The band Funeral For A Friend is coming to Singapore.Their videos are really nice and I like some songs but most songs are too hardcore.Linkin Park is also coming to Singapore on Nov 13,the last day of O Level.But the tickets prices are too expensive.I'm still considering...