C₂H₂ +

O2

- CO₂ +

H₂

How many moles of oxygen are necessary to react completely with 4.0 moles of

propane (CH) ?

2 moles king and also have a lovely day

20moles of oxygen will be required

Explanation:

The equation for the reaction of propane with O2 is given below:

C3H8 + 5O2 - >3CO2 + 4H2O

From the balanced equation,

We see clearly that 1mole of C3H8 required 5moles O2. Therefore, 4moles of C3H8 will require = 4x5 = 20 moles of O2.