Question

In a double-replacement reaction, _____.


the reactants are usually a metal and a nonmetal

one of the reactants is often water

energy in the form of heat or light is often produced

the reactants are generally two ionic compounds in aqueous solution

Answer 1

Answer:

The correct answer is D: the reactants are generally two ionic compounds in aqueous solution.

Explanation:

A type of reaction in which two reactants participate and exchange ions with each other as the reaction proceeds. Such type of reaction is known as a double displacement reaction. In double displacement reaction, the product formed is precipitate.

Below is the pathway of the double displacement reaction:

AB + CD → AD + CB

In double displacement reaction usually, ionic compounds are involved. The bond formation between the reacting species may be ionic or covalent in nature.