The acid and base that formed the salt [tex]Ca_3(PO_4)_2[/tex] would be phosphoric acid ([tex]H _3PO _4[/tex]) and calcium hydroxide ([tex]Ca(OH)_2[/tex] respectively.
Formation of salt
Salts are usually formed from neutralization reactions. That is, reactions involving acids and bases to produce salts and water.
In order to form [tex]Ca_3(PO_4)_2[/tex] from an acid and a base, such an acid must be phosphoric in nature while the base must be calcium-based.
Thus:
[tex]Ca(OH)_2 + H_3PO_4 --- > Ca_3(PO_4)_2 + H_2O[/tex]
More on neutralization reactions can be found here:https://brainly.com/question/20038776
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