A solution is 5 mM in each of the following ions: numberionKsp of M(OH)2
1Mg2+1.8e-11
2Cd2+2.5e-14
3Co2+1.6e-15
4Zn2+4.4e-17
5Cu2+2.2e-20
Indicate which of the metal ions would precipitate (or start to precipitate) at each of the following pH values. Indicate your answer with the number of the ion. Use 0 to indicate no precipitate. If more than one precipitate is expected, list the numbers in increasing order and separate them with commas. For example, 3,4,5 is ok but 5,4,3 is not.
pH = 6.00: ? (1,2,3,4,5 list all that apply?)
pH = 8.00: ? (1,2,3,4,5 list all that apply?)
What is the pH to the nearest 0.1 pH unit at which Cu(OH)2 begins to precipitate? pH = ?

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.