How many liters of O₂ will be consumed if 3.9 moles of ammonia is added to the system under the assumption that oxygen is in excess? * 640 L O₂
110 L O₂
61 L O₂
3.9 L O₂

What is the percentage of hydrogen in nitrogen trihydride

Chemistry worksheet - i am not sure what they are asking for exactly?

According to le chatelier’s principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.