Is the solubility of FeFe (OH)(OH) 33 increased, decreased, or unchanged on addition of each of the following substances? Write a balanced net ionic equation for each dissolution reaction.
(a) HBr(aq).
(b) NaOH(aq).
(c) KCN(aq).

a) solubility increases

b) solubility decreases

c) solubility increases

Explanation:

I) Fe^3+(aq) + 3Br^- > FeBr3 (aq) solubility increases

II) Fe^3+(aq) + 3OH^- > Fe(OH)3(s) solubility decreases

III) Fe^3+(aq) + 6CN^- > [Fe(CN)6]^3- (aq) solubility increases

The ionic equations shown above shows the possible changes in solubility when Fe(OH)3 is added to each of the solutions mentioned in the question.

answer: a tank of height h is filled with water and sits on the ground. water squirts from a hole at a height y above the ground and has a range r. for two y values, 0 and h, r is zero. determine the value of y for which the range will be a maximum.

explanation:

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.