Question

In two or more complete sentences explain how to balance the chemical equation and classify its reaction type.

____P₄ + ___O₂ ⟶ ___P₂O₃

Answer 1

To balance the chemical equation P4 + O2 → P2O3, ensure equal numbers of atoms on both sides by adjusting coefficients: 4P4 + 3O2 → 2P2O3. This is a synthesis reaction.

Step-by-step explanation:

To balance the chemical equation P4 + O2 → P2O3, you must ensure there are equal numbers of each type of atom on both sides of the equation. Start by writing down the correct formulas for the reactants and products. The reactant phosphorus is in the form of P4, and oxygen is O2, because these elements usually exist as molecules. Then add coefficients to balance the atoms:

• Place a coefficient of '3' in front of O2 to have a total of 6 oxygen atoms.
• Place a coefficient of '4' in front of P2O3 resulting in 6 oxygen atoms and 8 phosphorus atoms.
• Place a coefficient of '4' in front of P4 to balance the 8 phosphorus atoms.

The balanced equation becomes: 4P4+ 3O2→ 2P2O3.

This reaction is classified as a synthesis reaction, as it involves combining simpler substances (elements) to form a more complex compound.