If the reactants weigh 37.8g, how much will the products weigh after a reaction happens in a closed container? (Include a unit)

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 : )

answersilicon (si); oxygen (o);