- Messages
- 179
- Reaction score
- 161
- Points
- 53
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ANYONE?
Yo, dilute acid and dilute base (Dil HCL and H2SO4) react with esters to hydrolyse it. Sodium only reacts with Carboxyllic acids and alcohols, but there aren't any!can one of you help me with this? I can't understand why the answer is B - thanks
Is the answer A?
Actually D does make sense (I was actually going for D but then I chose A!, silly me!)I was going for that too but it's D. View attachment 62505
I think its D
I think its D
Draw the chain first,you can see that the ammoniacan first react with the C-Br bonds of the 1st carbon and that of the 5th carbon (in the straight chain) which forms the ring as shown.
Sorry if I'm being unclear >_<
Hmm if the solution does form that means water molecules felt more comfortable forming bonds with the anhydrous aluminium chloride than they did with themselves. All systems want to achieve a lower and lower energy state that gives out heat so they become more stable. If they DID like forming bonds with anhydrous aluminium choride, this means that the energy released when they formed these bonds was MORE than the energy needed to break the water molecules' bonds with themselves, which means that there was a net release of energy, i.e. reaction was exothermic, not endothermic. That leaves only C as the correct choice cause all other options contain statement 1 and we just got rid of it. Without even thinking about 2 and 3 you can choose C. But, you should know about 2 and 3 from the book and the chapter of periodicity where we are told to know reactions of water and period 3 chlorides. Hope I helped.
EDIT: Anything that successfully dissolves, you can be sure it's an exothermic process.
This is a good explanation. I would like to add to the last sentence.
"Anything that successfully dissolves, you can be sure it's an exothermic process."
There are some substances that dissolve and are endothermic (e.g. dissolving ammonium chlorides), a spontaneous reaction does not only depends on enthalpy changes but also entropy and the temperature.
Is it a D?anyone plz
Awesome,should get around 37.Wbu?How was P1???????
A good one. 27- 30 INSHALLAHHow was P1???????
Same here dude was thinking would get 40 right after paper was done,ended up doing silly mistakes. :/35-37, it was nice. made some very silly mistakes or else it would be 37-40.
Same here dude was thinking would get 40 right after paper was done,ended up doing silly mistakes. :/
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