__H3PO4 + __Ca(Oh)2 --> __Ca3(Po4)2 + __H2O Balanced equation

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.

you need to have a picture of the atom that way we can answer it

answerlinnaeus;