Question

Predict the products of the following reaction: Ba+P The equation may not be correctly balanced. Express your answers as chemical formulas separated by a comma. If no reaction occurs, enter noreaction.

Answer 1

The answer is Ba₃P₂ (Barium phosphide)

Ba + P → Ba₃P₂

The equation must be balanced.
There are 3 atoms of Ba on the right side of the equation (Ba₃P₂), so we must add number 3 on the left side of the equation.
Similarly, there are 2 atoms of P on the right side of the equation (Ba₃P₂), so we must add number 2 on the left side of the equation.

3Ba + 2P → Ba₃P₂