When strontium hydroxide (Sr(OH)₂) reacts with lithium phosphate (Li₃PO₄), they undergo a double displacement reaction, forming strontium phosphate (Sr₃(PO₄)₂) and lithium hydroxide (LiOH).

Here's the balanced chemical equation:

3 Sr(OH)₂ + 2 Li₃PO₄ → Sr₃(PO₄)₂ + 6 LiOH

Let's break down why this happens:

* Double displacement: In this type of reaction, the positive and negative ions of two reactants switch partners.

* Solubility: Strontium phosphate is generally insoluble in water, so it will precipitate out of the solution as a solid. Lithium hydroxide is soluble in water and will remain in solution.

This reaction can be used to produce strontium phosphate, which has applications in various fields, including:

* Pyrotechnics: Strontium compounds produce a red flame, making them useful in fireworks.

* Phosphors: Strontium phosphate is used in some types of phosphors, which emit light when exposed to certain wavelengths of radiation.

* Ceramic glazes: It can be added to ceramic glazes to improve their properties.