Best Answer: <span>(a)
8.9 x 10^-7 = x^2 / 0.15-x
x = [OH-] = 0.00037 M
pOH = 3.4
pH = 14 - 3.4 = 10.6
(b)
Ka = Kw/Kb = 5.6 x 10^-10 = x^2 / 0.20-x
x = [H+] = 0.000011 M
pH = 5.0</span>
Some elements have isotopes which have a different number of neutrons, and this means they have different masses.
Answer:
Heat energy moves from the water to the ice cubes.
Explanation:
Heat energy moves from the water to the ice cubes, as water is at higher temperature than ice.
