i want to say something to ms jee before i start to blog...
i cannot use GOOD english to blog...because my english is not really good.= = but i still will try my best.
Today lesson, we learned about the purpose ,problems ,chemical reactions or physical changes.
All these we learned at secondary 4 already.But i felt that i need to start revise sec4 textbook ,because some parts all forgot= =
Then just now do the online monkey thing. 4 questions are balance equations. i completed 3 ,left 1 question still thinking...
?K2Cr2O7(aq) +? CH3CH2OH(aq) +? H2SO4(aq)->?Cr2(SO4)3(aq) + ?K2SO4(aq) + ?CH3COOH(aq) + ?H2O(1)
rah....i still cannot balance it.which part i do wrongly!!!!
ok. do chemistry worksheet first.Then ask people to help me this question= =
=)
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