(Can you please show all the work that was needed for the problems thank youu sm)

15. One of the reactions used to inflate automobile air bags involves
sodium azide (NaN3): 2NaN3(s) —> 2Na(s) + 3N2(g). Determine the
mass of N2 produced from the decomposition of NaN3 shown at right.
16. Challenge in the formation of acid rain, sulfur dioxide (S02) reacts with
oxygen and water in the air to form sulfuric acid (H2SO4) Write the
balanced chemical equation for the reaction. If 2.50 g of SO2 reacts with
excess oxygen and water, how much H2SO4 in grams, is produced?

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.