How many grams of H2O would be produced if you started with 7 moles of ethylene (C2H4 )?

Explanation:

so if the reaction is C2H4+3O2-->2H2O+2CO2

if there were 7 moles of C2H4:

(see the attachment)

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )