Determine which conversion factor is needed to solve the following problem: How many liters of ammonia gas (NH3) can be formed from 60.4 liters of hydrogen gas (H^2) at STP according to the following chemical equation? 3 H^2 (g) + N^2(g) → 2 NH^3 (g)​

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!