Answer:
1) Fe³⁺
2) Al³⁺
3) Pb²⁺
Explanation:
Because all of the metal ion concentrations are the same, the order that they precipitate will be dependent on the 
values of each individual precipitate. The lower the , the less OH⁻ needed in solution to precipitate.
The three values are
= 2.6 x 10⁻³⁹ for Fe(OH)₃,
= 1.9 x 10⁻³³ for Al(OH)₃
= 1.4 x 10⁻¹⁵ for Pb(OH)₂
This means that the ions will precipitate in the following order Fe³⁺ then Al³⁺ then Pb²⁺
Note: if too much OH⁻ is added Al³⁺ will redissolve into solution because of the formation of the soluble complex Al(OH)⁻₄ (
= 1.1 x 10³³)
The kingdom that we are 9is in this is my favorite 9
The awnser is number four <span>Copper is conductive and will absorb heat to cook the food. </span>
The pressure will increase with decreasing volume. if they remain constant, that is.
