Question

classify each substance as either a conductor or insulator.
a sample of mercury:
a piece of glass:
a rubber hose:
a negatively ionized lithium paste:

Explanation:

Conductors allow electric current to flow easily, typically metals or ionized substances. Insulators do not conduct electric current well, made of non-metallic, non-ionized materials.

1. Mercury is a metal, so it conducts electricity.
2. Glass is a non-metallic material that blocks current flow.
3. Rubber is a common insulating material used to prevent conduction.
4. Ionized substances have charged particles that can carry current, so ionized lithium paste conducts.

Answer:

A sample of mercury: Conductor
A piece of glass: Insulator
A rubber hose: Insulator
A negatively ionized lithium paste: Conductor