Help with organic reactions?!

[Lols123]

Hey guys

Did a prac with organic compounds and reactions. We had to write down our observations but for some reason mine were different to the others D: This is for a SAC so I'm really worried. If someone could tell me what kind of things you would expect to see from the following equations, it would be REALLY good

1) 2-chloro 2-methly propane + KOH and then tested with AgNO3
What I had down was a white precipitate formed during first reaction and then a brown precipitate formed when the AgNO3 was added. Doesnt sound right though :/

2) Ethanol + H2O and then K2CrO7 added
I had it was clear for initial reaction. Then turned purple when chromate was added. Then turned clear when tube was put into hot water.

3) Glacial Ethanoic Acid + H2O

4) CH3COOH + Sodium Hydrogen Carbonate

5) Cyclohexene + Br2 + Sunlight
I had it turned cloudy? But can't really think of a reason why so I suspect that may be wrong

And finally I saw bubbles formed when the esters were made. Would anyone be able to explain that? :S

[GuessWho]

Some of these reactions were discussed in a previous thread. http://vce.atarnotes.com/forum/index.php/topic,41174.0.html