Please help! A sample of H2 was collected over water for use in future chemical analyses. A sample of 91.67 mL of H2 was collected over water at 33.77∘C. Total pressure in the collection vessel was 750.37 mmHg. (The vapor pressure of water at this temperature is 39.416 mmHg.) What was the mass of H2 collected?

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.

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 : )