In grammar, an appositive phrase refers to a set of words that identify or describe a noun previously mentioned, this means an appositive phrase is a phrase that renames a noun that is usually placed beside it and that provides further information to the reader about the noun. Additionally, to this, it is common the appositives are marked by commas as appositives provide information about the noun or subject but are not essential for understanding the meaning of a sentence. Considering this, in the case of the sentence "She recognized one of them. It was John, the school bus drive" the section "the school driver" is an appositive phrase because it is a set of words (phrase) that renames the noun "Jhon" or provides further information about him. Thus, the words "the school bus driver" are an appositive phrase.
A balanced chemical equation is an equation for a chemical reaction which the number of atoms for each element in the reaction and the total is the same for both sides.
