Determining the oxidation number of an element in a molecule.

What is the oxidation number of iron in Fe(CN6)-4?

Precipitate formed

For AgCl, what will occur if 250ml of 1.5 A 10(exponent negative 3)M of NaCl is mixed with 250mL of 2.0 A 10(exponent negative 7)M of AgNO3? a. A precipitate would form because Ksp>P b. A precipitate would form because P>Ksp c. No precipitate would form because Ksp>P d. No precipitate would form because P>Ksp e. No precipitate would form because P=Ksp

Determining the effect that a salt has on a molecule at equilibrium conditions.

Consider the equilibrium of Mg(OH)2(s) in water. What would be the effect of adding KCl? a. The KCl has no effect on the system b. Reaction goes to the right c. Reaction goes to the left d. Silver chloride solubility increases e. Silver dichloride precipitates

A multiple choice question determining the effects of adding a common ion at equilibrium.

Consider the equilibrium of AgCl(s) in water. What is the effect of adding KCl? a. The KCl has no effect b. The reaction goes to the right c. The reaction goes to the left d. Silver chloride solubility increases e. Silver dichloride precipitates

Multiple choice question regarding the effects of lowering the pH of a solution at equilibrium.

Consider the equilibrium of Mg(OH)2 in water. What is the effect of lowering the pH of the solution? a. Mg(OH)2(s) precipitates b. The concentration of hydroxide ion increases c. The concentration of Mg2+ decreases d. Mg2+(aq) is reduced to Mg(s) e. None of the above