The solid product of the reaction between silver nitrite (AgNO₂) and calcium chloride (CaCl₂) is silver chloride (AgCl).

Here's why:

* Reaction Type: This is a double displacement reaction, where the cations and anions of the reactants switch partners.

* Products: The other product formed is calcium nitrite (Ca(NO₂)₂), which is soluble in water.

* Solubility: Silver chloride (AgCl) is insoluble in water, making it precipitate out of solution as a solid.

The balanced chemical equation is:

2AgNO₂ (aq) + CaCl₂ (aq) → 2AgCl (s) + Ca(NO₂)₂ (aq)