Combustion is the reaction
For this problem, we use the formula for
radioactive decay which is expressed as follows:<span>
An = Aoe^-kt
where An is the amount left after time t, Ao is
the initial amount and k is a constant.
We calculate as follows:
An = Aoe^-kt
0.5 = e^-k(4.5)
k = 0.1540
An = Aoe^-kt
An = 16e^-0.1540(18)
<span>An = 1.00 mg</span></span>
Hope this answers the question. Have a nice day.
There are FOUR electrons in the 3p sub-level of sulfur....
Answer:
About 25 kPa
Explanation:
Pressure decreases with height above sea level.
The calculation is rather complicated, so I will refer to the figure below.
It shows that the pressure at 10 km is about 25 kPa.