Question

Number of oxygen atoms required for complete in

Answer 1

Answer:

What you want to do is place the reactant, then ensure that you have the same materials for the result( in a different order)

For Propane and Oxygen, this would look like:

C3H8 + O2 → CO2 + H2O

So all Hydrocarbons burn in oxygen to make Carbon Dioxide and Water.

Now to balance the equation, to ensure that same amounts are on both sides, we would place these numbers:

C3H8 + 5(O2) →3CO2 + 4(H2O)

Hope this helps.

Answer 2

Answer:

so mole of oxygen molecules has6.022×1023 molecules. The , 2 mean there are two oxygen atom in oxygen molecules