Determine the type of reaction, predict the products, and balance the compounds and reaction. Phosphoric acid + sodium hydroxide →

Step 1: Determine the type of reaction:
This is a neutralization reaction where an acid (phosphoric acid, H3PO4) reacts with a base (sodium hydroxide, NaOH) to form a salt and water.

Step 2: Predict the products:
Phosphoric acid (H3PO4) will react with sodium hydroxide (NaOH) to form sodium phosphate (Na3PO4) and water (H2O).

Step 3: Balance the chemical equation:
H3PO4 + 3NaOH → Na3PO4 + 3H2O

Answer: \boxed{H_3PO_4+3NaOH\rightarrow Na_3PO_4+3H_2O}