Answer:
Gases we Breathe Out
It is the same air that we inhale. ... The amount of inhaled air contains 21% of oxygen and 0.04% of carbon dioxide, while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide.
C. because it makes a story good, <span>those expectations get twisted around in a really good novel.</span>
It's between br and si so id go with br
The balanced reaction equation:
M(OH)2 ↔ M^2+ + 2(OH)^-
and when the Ksp = [M^2+][OH-]^2
when PH + POH = 14
∴ POH = 14-10.3= 3.7
and when POH = - ㏒ [OH-]
3.7 = -㏒[OH-]
∴[OH] = 2x10^-4
and when [M^2+] = 1/2[OH-]
∴[M^2+] = (2x10^-4) / 2 = 0.0001 M
So, by substitution in Ksp formula:
∴Ksp = (0.0001 * (2x10^-4)^2 = 4x10^-12