Which of the following steps can be used to identify an acid-base reaction? check whether the products are an acid and a base. check whether the reactants are an acid and a base. check if the ions of two compounds exchange places. check if one element replaces another element in a compound

Check if the ions of two compounds exchange places.

Explanation:-  

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.

Neutralization reactions is a type of double replacement reaction that occurs between an acid and a base. The following is an example of a neutralization reaction where ions exchange their places.

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