Write a balanced half-reaction describing the reduction of gaseous dibromine to aqueous bromide anions.

The balanced half reaction is written below.

Explanation:

Reduction reaction is defined as the chemical reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.

When bromine gas is reduced to bromide ions, the number of electron transferred are 2

The chemical equation for the reduction of bromine gas to bromide ions follows:

Hence, the balanced half reaction is written above.

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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