nit 5 Assessment:Balancing Equation: Balance this equation- underline ( )P_(4)+underline ( )O_(2)arrow underline ( )P_(2)O_(3) 2.1.3 1. 3. 2 1. 2. 3 it is already balanced

To balance the chemical equation, we need to ensure that the number of atoms of each element is the same on both sides of the equation.<br /><br />Given equation: $P_{4} + O_{2} \rightarrow P_{2}O_{3}$<br /><br />Step 1: Count the number of atoms of each element on both sides of the equation.<br />On the left side:<br />- Phosphorus (P): 4 atoms<br />- Oxygen (O): 2 atoms<br /><br />On the right side:<br />- Phosphorus (P): 2 atoms<br />- Oxygen (O): 3 atoms<br /><br />Step 2: Balance the number of atoms of each element by adjusting the coefficients.<br />To balance the phosphorus atoms, we need to have 2 molecules of $P_{2}O_{3}$ on the right side:<br />$P_{4} + O_{2} \rightarrow 2P_{2}O_{3}$<br /><br />Now, let's count the number of atoms again:<br />On the left side:<br />- Phosphorus (P): 4 atoms<br />- Oxygen (O): 2 atoms<br /><br />On the right side:<br />- Phosphorus (P): 4 atoms<br />- Oxygen (O): 6 atoms<br /><br />Step 3: Balance the oxygen atoms by adjusting the coefficient of $O_{2}$ on the left side.<br />We need 3 molecules of $O_{2}$ to balance the oxygen atoms:<br />$P_{4} + 3O_{2} \rightarrow 2P_{2}O_{3}$<br /><br />Now, let's count the number of atoms again:<br />On the left side:<br />- Phosphorus (P): 4 atoms<br />- Oxygen (O): 6 atoms<br /><br />On the right side:<br />- Phosphorus (P): 4 atoms<br />- Oxygen (O): 6 atoms<br /><br />The equation is now balanced.<br /><br />Answer: $P_{4} + 3O_{2} \rightarrow 2P_{2}O_{3}$