Match the procedural step to its purpose. a. Prevent ethanol from bumping violently when heated.
b. Deprotonate the alcohol to become a good nucleophile.
c. Avoid boiling away solvent in an open environment.
d. Isolate the ether product by leveraging its low solubility in water and ability to be isolated by precipitation.
e. Get an accurate weight of the solid by making sure it is completely dry.

1. The contents of the reaction flask are poured into ice.
2. The residue is not removed from the Buchner filter immediately after filtration.
3. Boiling chips or a stir bar are added to the round bottom flask prior to the reaction being heated under reflux.
4. Solid sodium hydroxide is added to 2-naphthol with heating.
5. The flask is fitted with a condenser and heated for twenty minutes.

thats a little if u want the answer just look it up on google thats what i do haha : )

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.