Filling Air Bags Automobile air bags produce nitrogen gas from the reaction: a. If 2.25 g of NaN3 reacts to fill an air bag, how much P–V work will the N2 do against an external pressure of 1.00 atm given that the density of nitrogen is 1.165 g/L at 20°C?

b. If the process releases 2.34 kJ of heat, what is ∆E for the system?

How many atoms are there in 5.70 mol of mg

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?

Wind and moving water provide energy. chemical mechanical thermal none of the above