Ais a long tubular handle with a thick retractable wire inside it.
a. muzzle
b. training collar
c. slip leash
d. head snare

d. head snare

Explanation:

Head snare is a type of bimembranophone drum composed of a small section cylindrical body, with two skins attached and tensioned by metal hoops, a thick retractable wire, a metal mat consisting of small wire springs placed in contact with the Lower skin, which vibrates through the resonance produced whenever upper skin is struck, producing a peaking sound.

no

sodium is solid at rt

i just did an experiment like this in my science class. also the answer is yes, it will get separated because they are two opposites meaning if they are opposite they can not attract.

hope this .!