Which component of a voltaic cell serves the same function as a salt bridge?

Aa porous barrier

Ba gaseous reactant

Ca copper wire

Da platinum electrode

Mgo2 is the oxidation state of manganese oxide

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.

Must be negative.substance increases