If 5.0 moles of propane react, how many molecules of water will be formed? c3h8(g)+5o2 (g) 3co2(g)+4h2 o(g)

molecules of water are produced ( assuming excess of oxygen )

STEP BY STEP EXPLANATION :

according to the given balanced equation ,

⇒

we see that , 1 mole of ( propane ) reacts with 5 moles of (oxygen) to give 3 moles of ( carbon di oxide )

and 4 moles of (water) respectively.

this is the number of moles;

the number of molecules are :

= =

thus answer is :

- decrease the number of plants and animals living in the water.