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From left to right, Aluminum electrolytic, I get aluminum breakage for these as they are. Taking them apart is very messy so I never bother. They are always cylindrical like this one and are found in almost everything electronic.
Second is a ceramic disc capacitor, not really sure of the value of these, if any, not sure what material is inside them.
Third is a metalized film capacitor, not sure what metal they use to coat the plastic with, but I can't really get anything for them. The film is usually polypropylene though.
Fourth is ceramic monolithic capacitors, usually found on motherboards and modem boards, but I've been finding them on low grade TV boards lately. They have silver and palladium, depending on where the price point is, value varies. lostinlodos can chime in and reveal more, as I don't have a buyer yet for the CMCs