Question

How many atoms of Oxygen (O) are there in the reactants of the following equation:

4P + 5O2 --> P4O10

Answer 1

There are 10 atoms of oxygen in the reactants.

Step-by-step explanation:

`4P + 5O_2\rightarrow P_4O_ {10}`

According to reaction , 4 atoms of phosphorus recatswith 5 molecules of oxygen to give 1 mole of phosphorus pentoxide.

Number of phosphorus atom on the reactant side = 4

Number of oxygen gas molecules on the reactant side = 5

1 molecule of oxygen has 2 atoms of oxygen.

So,number of oxygen atom on the reactant side = 5 × 2 = 10

Number of phosphorus atom on the product side = 4

Number of oxygen atom on the product side = 10