The deployment of airbags during a car accident results from a chemical reaction that, until the 1990s, involved sodium azide, NaN3. Sodium azide has since been replaced by less toxic substances that react in a similar way. In older airbags a crash triggers the decomposition of NaN3 to form elemental sodium and nitrogen gas, which fills the airbag. How many moles of N2 gas are produced when 145.6 g NaN3 decomposes

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.

b. examine and describe cells

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error

i think its 100.

hope this !