Q: Double-replacement reactions generally occur between substances in what kind of solution?


Read this paragraph and choose the correct option from the provided answers:

In this reaction, and are positively-charged cations, while and are negatively-charged anions. Double-replacement reactions generally occur between substances in aqueous solution. In order for a reaction to occur, one of the products is usually a solid precipitate, a gas, or a molecular compound such as water.

 Choices:

- solid

- reactive

- saline

- aqueous


A:
aqueous