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didn't understand ur question what r utrying so say?Show us some facts about the method used in the question? (Screenshot the question only)
Stop writing in CAPS ITS ANNOYING!!
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didn't understand ur question what r utrying so say?Show us some facts about the method used in the question? (Screenshot the question only)
Stop writing in CAPS ITS ANNOYING!!
umm...... so I am having a problem in answering the questions where we have to write which is more concentrated based on the volumes of the substances in chem paper 6
How do we know that the substance was supposed to be more concentrated because more amount volume is used or the substance was less concentrated because more volume was used?
Can anybody plz help me out? Thnx...............![]()
Screenshot the first part of question.i am not getting my answers guys!!!!!!!!!!!!!!!!!!!!!!!!
Who's Gonna Give it Next year I'm Giving it In Oct-NovemberDude you are probably gonna give Islamiyat next year !! Then I 'll ask from ya !!!!
Nope.Why would you want to boil it till 100°C?So in the marking scheme they say:
"Heat for specified time,record temp, greatest temp rise better fuel"
I wrote :
"Heat till boiling point of 100°C, record time taken, less time taken better fuel"
Is this acceptable?View attachment 53484
LOL 3 months main tyari kray ga !! it would be a miracle !! Waissay paper 2 bhi ho gya aaj !! Acha huwa alhamdulillah !! A* PAKKA INSHALLAHWho's Gonna Give it Next year I'm Giving it In Oct-November![]()
Not giving paper 3?LOL 3 months main tyari kray ga !! it would be a miracle !! Waissay paper 2 bhi ho gya aaj !! Acha huwa alhamdulillah !! A* PAKKA INSHALLAH
Lol i was talking about islamiyat !! was replying to ma pal Muazz !!Not giving paper 3?![]()
LOL who wants a C by doing core LOLNot giving paper 3?![]()
lol true that..!LOL who wants a C by doing core LOL
JO smjhna hay Smj looLOL 3 months main tyari kray ga !! it would be a miracle !! Waissay paper 2 bhi ho gya aaj !! Acha huwa alhamdulillah !! A* PAKKA INSHALLAH
No ethanol reacts with magnesium as magnesium is more reactive than the Hydrogen so displaces it.To distinguish between water and ethanol:
Test : Add magnesium
Water: Bubbles of Hydrogen
Ethanol: No reaction
Acceptable?
ph meter not possible as both are neutral so cant distinguish but for ethanol and ethanoic acid ph meter is possible!No ethanol reacts with magnesium as magnesium is more reactive than the Hydrogen so displaces it.
Ethanol + Magnesium ---> Magnesium Ethoxide + Hydrogen (Not sure of spelling though)
A better test would be B.P Ethanol more volatile than water
Chemical test would be test pH using "pH meter" and water would have neutral and ethanol more alkaline. Write meter as it would be able to detect slight alkaline solution as well
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